BEGIN:VCALENDAR
VERSION:2.0
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BEGIN:VEVENT
SUMMARY:Probability and Statistical Mechanics
DTSTART;VALUE=DATE-TIME:20211108T080000Z
DTEND;VALUE=DATE-TIME:20220301T100000Z
DTSTAMP;VALUE=DATE-TIME:20220128T064500Z
UID:indico-event-316@indico.gssi.it
DESCRIPTION:Speakers: Errico Presutti (GSSI)\, Stefano Olla (GSSI)\, Seren
a Cenatiempo (GSSI)\, Lu Xu (GSSI)\, Marielle Simon (GSSI)\nLecturers\nSte
fano Olla\, stefano.olla@gssi.it\nMarielle Simon\, marielle.simon@gssi.it
\nErrico Presutti\, errico.presutti@gmail.com\nSerena Cenatiempo\, serena
.cenatiempo@gssi.it\nLu Xu\, lu.xu@gssi.it\n\n\nTimetable and workload\nLe
ctures: 60 hours\nFinal project assignment: 24 hours\n\nCourse description
and outcomes\nThis is a probability course that will constitute an introd
uction to the main concepts of Statistical Mechanics. One of the purpose
s of statistical mechanics is to explain thermodynamics in terms of the
“microscopic” dynamics. The general consensus is that thermodynamics d
escribe the “macroscopic” behavior of some quantities (energy\, pressu
re\, . . . ) under the influence of external forces or heat bath. Macrosco
pic means that laws of thermodynamics emerge for “large” systems and i
n a large time scale. We present in these lectures a precise mathematical
approach where thermodynamics laws (Carnot cycles\, Kelvin and Clausius pr
inciples\, etc.\, and the corresponding first and second principle of ther
modynamics) are obtained through space-time scaling limits. In this approa
ch the problem of thermodynamics is reduced to a purely mathematical probl
em\, very difficult indeed.\nWe will avoid making a general theory\, and i
n the first part of the course we will work with the simple system of one
dimensional hard core classical dynamics and some variants of this. We wil
l study the stationary measures and scaling limits.\n\nIn the second part
of the course we will study phase transitions in equilibrium for some latt
ice models\, like the Ising model.\n\nIn the third part we will give an in
troduction to the statistical mechanics of quantum systems.\n\nThe classes
will be complemented by TA sessions\, aimed to recall some of the mathem
atical background.\n\n\nExamination and grading\nEach student\, after havi
ng delivered a written report on the final project\, will be evaluated acc
ording to the ECTS grading scale.\n\n \nhttps://indico.gssi.it/event/316/
LOCATION:
URL:https://indico.gssi.it/event/316/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Numerical Methods
DTSTART;VALUE=DATE-TIME:20211108T090000Z
DTEND;VALUE=DATE-TIME:20220228T110000Z
DTSTAMP;VALUE=DATE-TIME:20220128T064500Z
UID:indico-event-312@indico.gssi.it
DESCRIPTION:Speakers: Francesco Tudisco (GSSI)\, Nicola Guglielmi (GSSI)\n
Lecturers\nNicola Guglielmi\, nicola.guglielmi@gssi.it\nFrancesco Tudisco\
, francesco.tudisco@gssi.it\n\n\nTimetable and workload\nLectures: 60 hour
s\nLabs: 20 hours\nFinal project assignment: 24 hours\n\n\nCourse descript
ion and outcomes\nThis course is an introduction to modern numerical analy
sis. The primary objective of the course is to develop graduate-level un
derstanding of computational mathematics and skills to solve a range rea
l-world mathematical problems on a computer by implementing advanced numer
ical algorithms using a scientific computing language (such as MATLAB or
Julia). \n\n\nCourse requirements\nCalculus and basic linear algebra and
numerical analysis. Previous programming experience in any language may h
elp.\n\n\nCourse content\nThe course will cover the following topics\n\n
\n\n\n Boundary value problems (BVP):\n \n Finite differences\;\n Variat
ional methods\;\n Rayleigh Ritz Galerkin methods\n \n \n Numerical optimi
zation:\n \n Unconstrained optimization\; \n Gradient descent methods\;
\n Conjugate directions method\;\n Constrained optimization\;\n Penaliz
ation methods\n \n \n Iterative methods for eigenvalue problems:\n \n Pow
er method\; \n Subspace iteration\; \n Krylov subspace methods\; \n
Application to spectral clustering\n \n \n Methods for sparse linear syste
ms:\n \n Sparse direct solvers\;\n General projection methods\; \n CG
and GMRES\;\n Preconditioning\; \n \n \n Numerical quadrature:\n \n Ord
er conditions\; \n Error analysis\; \n Superconvergence\; \n Orthogo
nal polynomials\; \n Gaussian quadrature\n \n \n Linear multistep method
s for ODEs:\n \n Explicit and implicit Adams' methods\; \n Local error
and stability\;\n Convergence\; \n Variable step size multistep methods
\; \n General linear multistep methods\n \n \n Topics in Computational M
achine Learning\n \n Nesterov accelerated gradient\n Stochastic gradient
descent\n Graph and Convolutional Neural Networks\n Training NN: forwar
d and backward propagation\n Implicit-depth NN\n \n \n Runge Kutta method
s for ODEs: \n \n General form\; \n Convergence theory\;\n Order con
ditions\; \n Stability theory\; \n A stability\; \n B stability\; \
n Stiff problems\; \n Von Neumann theorem\; \n Evolution PDEs\n \n \n
\n\n \nBooks of reference\nE. Hairer\, G. Wanner\, S. P. Nørsett\; Solvi
ng Ordinary Differential Equations I\nE. Hairer\, G. Wanner\; Solving Ordi
nary Differential Equations II\nY. Saad\; Iterative methods for Sparse Lin
ear Systems (Free Online Version)\nY. Saad\; Numerical methods for Large
Eigenvalue Problems (Free Online Version)\n \nExamination and grading\nS
tudents will be evaluated on the basis of a written exam and computational
assessment to be taken at the end of the course. Both tests are graded ba
sed on the ECTS grading scale\n \nhttps://indico.gssi.it/event/312/
LOCATION:Ex-ISEF-Building-Room D (GSSI)
URL:https://indico.gssi.it/event/312/
END:VEVENT
BEGIN:VEVENT
SUMMARY:An introduction to Continuum Mechanics
DTSTART;VALUE=DATE-TIME:20211112T080000Z
DTEND;VALUE=DATE-TIME:20220304T160000Z
DTSTAMP;VALUE=DATE-TIME:20220128T064500Z
UID:indico-event-314@indico.gssi.it
DESCRIPTION:Speakers: Roberto Verzicco\, Francesco Viola\nLecturers\nRober
to Verzicco\, roberto.verzicco@gssi.it\nFrancesco Viola\, francesco.viola@
gssi.it\n\nTimetable and workload\nLectures: 60 hours\nHomework assignment
s: 4 at 4 hours each\nFinal project and exam: 20 hours\n\nCourse descripti
on and outcomes\nThe students attending this course are expected to become
familiar with vector spaces relevantto continuum mechanics and to perform
vector and tensor manipulations. They will be ableto describe motion\, de
formation and forces in a continuum\, derive equations of motion andconser
vation laws and use constitutive models for fluids and solids. With these
tools at handstudents will be able to solve simple boundary value problems
for fluids and solids. As anapplication of a challenging problem of conti
nuum mechanics\, the final part of the course willbe devoted to introduce
the basics of turbulence and some related computational method.\n\nTopics\
n1. Reminders on Linear Algebra and Tensor Calculus\n2. The Continuum hypo
thesis: from microscopic to macroscopic\n3. Kinematics of deformable bodie
s\n4. Eulerian and Lagrangian descriptions of motion\n5. The balance laws
of continuum mechanics: Conservation of Mass and Energy\, MomentumBalance\
n6. Constitutive Relations\n7. Solid mechanics: nonlinear and linearized e
lasticity\n8. Fluid dynamics: the Navier Stokes equations\n9. Analytical a
nd asymptotic solutions of the Navier Stokes equations\n10. An introductio
n to hydrodynamic instabilities\n11. An introduction to the physics of flu
id turbulence\n12. Kolmogorov theory and wall turbulence\n13. Basic concep
ts on computational methods for fluid dynamics and turbulence simulation\n
\nExamination and grading\nEach student\, after having delivered a written
report on the final project\, will be evaluated andranked according to th
e ECTS grading scale.\n\nSuggested references\n\n\n M. Gurtin\, Introducti
on to Continuum Mechanics\, Academic Press 1981\n S. Pope\, Turbulent Flow
s\, Cambridge University Press 2000\n\nhttps://indico.gssi.it/event/314/
LOCATION:GSSI
URL:https://indico.gssi.it/event/314/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Demystifying black holes
DTSTART;VALUE=DATE-TIME:20220112T133000Z
DTEND;VALUE=DATE-TIME:20220112T143000Z
DTSTAMP;VALUE=DATE-TIME:20220128T064500Z
UID:indico-event-346@indico.gssi.it
DESCRIPTION:Speakers: Gia Dvali (LMU-MPI\, Munich)\nBlack holes are con
sidered mysterious due to their time evolution and information processin
g. We claim that these properties are not specific to gravity but are g
eneric for a class of objects\, called saturons\, that have maximal micr
ostate entropy compatible with unitarity. \n\nSaturons appear in a variet
y of calculable renormalizable theories in the form of solitons and other
bound states. This universality has a wide range of implications not o
nly for black hole physics but also for particle physics and quantum infor
mation processing in many-body systems.\nhttps://indico.gssi.it/event/346/
LOCATION:
URL:https://indico.gssi.it/event/346/
END:VEVENT
BEGIN:VEVENT
SUMMARY:From microscopic Hamiltonian dynamics to collisional kinetic equat
ions. The case of the Boltzmann equation.
DTSTART;VALUE=DATE-TIME:20220117T140000Z
DTEND;VALUE=DATE-TIME:20220201T100000Z
DTSTAMP;VALUE=DATE-TIME:20220128T064500Z
UID:indico-event-347@indico.gssi.it
DESCRIPTION:Speakers: Alessia Nota (Univaq)\nThe problem of deriving effec
tive macroscopic equations from the microscopic description based on the
fundamental laws of mechanics\, through suitable scaling limits\, is a cen
tral problem of non-equilibrium statistical mechanics. The resulting equat
ions are essential to describe the relevant physical properties of the sy
stem and their time evolution. In this course we will address the aforeme
ntioned question in the framework of kinetic theory of gases. One of the m
ost famous example of kinetic equation is the Boltzmann equation which de
scribes the evolution of a rarefied gas. The goal of this course is to
present some fundamental results on the mathematical aspects of the Bolt
zmann equation and to outline the limiting procedure which leads from the
microscopic description based on the Hamiltonian dynamics of N interactin
g particles to the Boltzmann equation.\n\nThe course is divided into two p
arts. In the first part I will present the main properties of the Boltzma
nn equation and the heuristic derivation. Furthermore\, I will review the
celebrated result by O. Lanford from 1975 on the rigorous derivation of t
he Boltzmann equation from a system of\nN hard spheres in the low-density
limit\, for short times and discuss the main steps of the proof. In the s
econd part the focus will shift towards a simpler microscopic model\, the
Lorentz gas\, which is a gas of non-interacting particles in a random con
figuration of scatterers. This model is paradigmatic since it provides a
rare source of exact results in kinetic theory. We will see in detail the
proof of the rigorous validation of the linear Boltzmann equation from th
e Lorentz Gas\, in the low-density limit.\nhttps://indico.gssi.it/event/3
47/
LOCATION:
URL:https://indico.gssi.it/event/347/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Exploring the Universe in gravitational waves in the milli-Hz band
DTSTART;VALUE=DATE-TIME:20220119T133000Z
DTEND;VALUE=DATE-TIME:20220119T143000Z
DTSTAMP;VALUE=DATE-TIME:20220128T064500Z
UID:indico-event-322@indico.gssi.it
DESCRIPTION:Speakers: Stas Babak (Université de Paris)\nLISA is a large c
lass ESA-lead mission scheduled for launch in 2034. It aims at exploring t
he universe in gravitational waves\nwithin the frequency band from 0.1 mHz
to 0.1 Hz. It will observe population of Galactic ultra-compact binaries\
,\nmerging massive black holes\, extreme mass ratio inspirals\, early insp
iral stage of the stellar mass black holes and\, hopefully\,\nstochastic s
ignal from the early Universe. In this talk I will review the main gravita
tional sources and our ability to detect\nthem with LISA. Then I describe
the science goals which we want to achieve with gravitational waves observ
ations in the\nmilli-Hz band.\nhttps://indico.gssi.it/event/322/
LOCATION:
URL:https://indico.gssi.it/event/322/
END:VEVENT
BEGIN:VEVENT
SUMMARY:The Lattice Boltzmann Method: a powerful tool for the Simulation o
f Complex Flows
DTSTART;VALUE=DATE-TIME:20220120T140000Z
DTEND;VALUE=DATE-TIME:20220120T153000Z
DTSTAMP;VALUE=DATE-TIME:20220128T064500Z
UID:indico-event-350@indico.gssi.it
DESCRIPTION:Speakers: Giacomo Falcucci (University of Rome Tor Vergata)\
nAbstract: \n\nIn the last 20 years\, the Lattice Boltzmann Method (LBM
) has spawned remarkable scientific achievements for complex phenomena of
scientific and technological interest\, including multi-phase\, multi-comp
onent and reacting flows\, fluxes through complex micro-and nano-scale por
ous media and even biophysical flows. \nIn this talk\, the essential basi
cs of the LBM will be portrayed\, with a special focus on its most interes
ting and relevant multi-scale applications\, including pseudo-potential mu
ltiphase flows\, fluid-structural interaction and High Performance Computi
ng (HPC) applications for complex systems. \nThe final goal is to show th
at LBM has proven to be a highly versatile and reliable tool\, providing a
n interesting alternative to classical methods\, based on the continuum as
sumption and the Navier-Stokes equations. \n\n\nThe seminar will be held
in the Main Auditorium and it will also be streamed online via zoom at th
is link:\n\nhttps://us02web.zoom.us/j/89664583638?pwd=MTluRndSWUhoMG5VbU80
Rlcydmg2dz09\n\n\nPlease notice that\, in accordance to GSSI regulations\,
your Green Pass will be checked at the entrance.\nhttps://indico.gssi.it/
event/350/
LOCATION:
URL:https://indico.gssi.it/event/350/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Analog models of physical phenomena
DTSTART;VALUE=DATE-TIME:20220126T133000Z
DTEND;VALUE=DATE-TIME:20220126T143000Z
DTSTAMP;VALUE=DATE-TIME:20220128T064500Z
UID:indico-event-323@indico.gssi.it
DESCRIPTION:Speakers: Massimo Mannarelli (INF_LNGS)\nMany physical phenome
na are extremely interesting but not directly accessible\; the prototype
is the Hawking radiation from black holes. To gain insight into some as
pects of these phenomena it is possible to use the analogy with other ph
ysical systems that are easily accessible and that are (in most cases) a
nalytically solvable. I will mainly dwell on gravity analogues: a class
of models used to reproduce some aspects of general relativity that make
s manifest how gravity and geometry are intertwined.\nhttps://indico.gssi
.it/event/323/
LOCATION:
URL:https://indico.gssi.it/event/323/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Phase transitions in classical spin models with continuous rotatio
nal symmetry
DTSTART;VALUE=DATE-TIME:20220207T140000Z
DTEND;VALUE=DATE-TIME:20220208T100000Z
DTSTAMP;VALUE=DATE-TIME:20220128T064500Z
UID:indico-event-349@indico.gssi.it
DESCRIPTION:Speakers: Alessandro Giuliani (Università Roma Tre)\nAbstract
\n\nIn this 4-hours mini-course\, I will provide an introduction to the t
heory of phase transitions in classical spin models with continuous rotat
ional symmetry\, such as the XY (or rotator) model and the Heisenberg mod
el. I will discuss the predictions on the phase diagram of these models b
ased on the Gaussian approximation\, also known as "spin wave theory". I
will state and sketch the proofs of two theorems substantiating the expec
ted picture\, namely:\n\n\n the Mermin-Wagner theorem\, on the absence of
long range orientational order in one or two dimensions\;\n \n the Froh
lich-Simon-Spencer theorem\, on the existence of long range orientationa
l order in three or more dimensions.\n\n\n \n\nSchedule: the mini course
will be held onsite at GSSI (room D) and streamed on zoom\, according t
o the following schedule:\n\nFebruary 7th: 15-17\nFebruary 8th:
9-11\n\nPeople interested in the onsite or online participation may cont
act Serena Cenatiempo for further information (serena.cenatiempo@gssi.it).
\nhttps://indico.gssi.it/event/349/
LOCATION:
URL:https://indico.gssi.it/event/349/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Pulsars: magnetic monsters at nuclear density
DTSTART;VALUE=DATE-TIME:20220209T133000Z
DTEND;VALUE=DATE-TIME:20220209T143000Z
DTSTAMP;VALUE=DATE-TIME:20220128T064500Z
UID:indico-event-324@indico.gssi.it
DESCRIPTION:Speakers: Nanda Rea (Institute of Space Sciences Barcelona)\n
Pulsars are now 50 years old! Pulsars turned 3000! These relativistic star
s are unique laboratories where not only the most extreme gravity and elec
tromagnetism can be probed\, but also the strong and weak interaction can
be studied in regimes that have no hope of being explored on Earth. The re
cent discovery of gravitational waves is allowing an unprecedented view of
previously invisible parts of the Universe. This will unravel the physics
of the neutron stars (aka pulsars)\, which are unique objects whose emiss
ion encompasses all the available multi-messenger tracers: electromagnetic
waves\, cosmic rays\, neutrinos\, and gravitational waves. The study of
these objects transcends the traditional astrophysical approach and requir
es a multidisciplinary effort that spans from particle and nuclear physics
to astrophysics\, from experiment to theory\, from gravitational waves to
the electromagnetic spectrum. I will review in this seminar what pulsars
are\, as well as the most important discoveries in the field\, their conse
quences to physics in general\, and what we aim for in the next decade. Pa
rticular attention will be given i) to magnetars - the biggest magnets in
the Universe\, ii) to millisecond pulsars - the fastest rotating astrophys
ical objects\, iii) to pulsars as gravitational wave emitters and detector
s\, and iv) to pulsars as GPS systems for future deep space travels.\nhttp
s://indico.gssi.it/event/324/
LOCATION:
URL:https://indico.gssi.it/event/324/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Correlation energy of mean-field Fermi gases
DTSTART;VALUE=DATE-TIME:20220210T140000Z
DTEND;VALUE=DATE-TIME:20220210T150000Z
DTSTAMP;VALUE=DATE-TIME:20220128T064500Z
UID:indico-event-351@indico.gssi.it
DESCRIPTION:Speakers: Porta Marcello (SISSA)\nAbstract:\n\nIn this talk I
will discuss the ground state properties of homogeneous\, interacting Ferm
i gases\, in the mean-field scaling. In this regime\, Hartree-Fock theory
provides a good approximation for the ground state energy of the system\;
this approximation is based on the replacement of the space of fermionic w
ave functions with the smaller set of Slater determinants\, where the only
correlations among the particles are those induced by the Pauli principle
. I will discuss a rigorous approach that allows to go beyond the Hartree-
Fock approximation\, and that in particular allows to compute the leading
order of the correlation energy\, defined as the difference between the ma
ny-body and Hartree-Fock ground state energies. The expression we obtain r
eproduces the ground state energy of a non-interacting Bose gas\, and agre
es with the prediction of the random-phase approximation. The proof is bas
ed on a rigorous bosonization method\, that allows to describe the particl
e-hole excitations around the Fermi surface in terms of a quasi-free Bose
gas. Joint work with N. Benedikter\, P. T. Nam\, B. Schlein and R. Seiring
er.\n\n \n\nThe seminar will be held in the Main Auditorium and it will
also be streamed online via zoom at this link:\n\nhttps://us02web.zoom.us/
j/89664583638?pwd=MTluRndSWUhoMG5VbU80Rlcydmg2dz09\n\nPlease notice that\,
in accordance to GSSI regulations\, your Green Pass will be checked at th
e entrance.\nhttps://indico.gssi.it/event/351/
LOCATION:
URL:https://indico.gssi.it/event/351/
END:VEVENT
BEGIN:VEVENT
SUMMARY:TBA
DTSTART;VALUE=DATE-TIME:20220216T133000Z
DTEND;VALUE=DATE-TIME:20220216T143000Z
DTSTAMP;VALUE=DATE-TIME:20220128T064500Z
UID:indico-event-325@indico.gssi.it
DESCRIPTION:Speakers: Tanja Hinderer (University of Amsterdam)\nhttps://in
dico.gssi.it/event/325/
LOCATION:
URL:https://indico.gssi.it/event/325/
END:VEVENT
BEGIN:VEVENT
SUMMARY:The Square Kilometre Array Observatory: uncovering the origins of
Life and the Universe
DTSTART;VALUE=DATE-TIME:20220222T133000Z
DTEND;VALUE=DATE-TIME:20220222T143000Z
DTSTAMP;VALUE=DATE-TIME:20220128T064500Z
UID:indico-event-338@indico.gssi.it
DESCRIPTION:Speakers: Philip Diamond (University of Manchester)\nA global
partnership of nations has joined together to build and operate the Square
Kilometre Array Observatory (SKAO)\, a radio astronomy observatory for th
e 21st Century. SKAO will consist of two enormous radio telescopes\, one
in South Africa and one in Australia. After seven years of detailed design
\, construction has finally begun with the observatory expected to be oper
ational in ~2028. The observatory has been designed to deliver a huge rang
e of science from the origins of life\, exploring gravitational physics\,
probing cosmic magnetism to uncovering the dark ages of the early Universe
\, and much more. I shall provide a guided tour of the key aspects of the
science enabled by SKAO\, describe the observatory itself and the infrastr
ucture required to deliver data to the scientists and finally will provide
an update on the current status of construction.\nhttps://indico.gssi.it/
event/338/
LOCATION:
URL:https://indico.gssi.it/event/338/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Axions as dark matter
DTSTART;VALUE=DATE-TIME:20220223T133000Z
DTEND;VALUE=DATE-TIME:20220223T143000Z
DTSTAMP;VALUE=DATE-TIME:20220128T064500Z
UID:indico-event-336@indico.gssi.it
DESCRIPTION:Speakers: Frank Wilczek\n\nThe study of time-reversal symmetry
and its breaking has been enormously fruitful in fundamental physics. A r
emaining challenge is to understand why time-reversal symmetry holds in th
e strong interaction\, even though QCD does not forbid its violation. Addr
essing this problem leads led us to suggest the existence of a new particl
e\, the axion\, with remarkable properties. Axions can also provide the "d
ark matter" that we need in cosmology. Detecting the cosmic axion backgrou
nd is challenging\, but it does not seem hopeless\, and several powerful e
fforts around the world are aimed at that goal. I will especially focus on
progress in the ALPHA collaboration.\n\nhttps://indico.gssi.it/event/336/
LOCATION:Online
URL:https://indico.gssi.it/event/336/
END:VEVENT
BEGIN:VEVENT
SUMMARY:TBA
DTSTART;VALUE=DATE-TIME:20220302T133000Z
DTEND;VALUE=DATE-TIME:20220302T143000Z
DTSTAMP;VALUE=DATE-TIME:20220128T064500Z
UID:indico-event-326@indico.gssi.it
DESCRIPTION:Speakers: Yonit Hochberg (Hebrew University of Jerusalem)\nhtt
ps://indico.gssi.it/event/326/
LOCATION:
URL:https://indico.gssi.it/event/326/
END:VEVENT
BEGIN:VEVENT
SUMMARY:The entropy of Hawking radiation
DTSTART;VALUE=DATE-TIME:20220309T133000Z
DTEND;VALUE=DATE-TIME:20220309T143000Z
DTSTAMP;VALUE=DATE-TIME:20220128T064500Z
UID:indico-event-335@indico.gssi.it
DESCRIPTION:Speakers: Juan Maldacena (Institute for Advanced Study School
of Natural Sciences\, Princeton)\nWe will review recent progress on the bl
ack hole information problem that involves a new understanding of how to c
alculate the entropy of Hawking radiation. We show how the method for comp
uting gravitational fine-grained entropy\, developed over the past 15 year
s\, can be extended to capture the entropy of Hawking radiation. This tech
nique reveals the large corrections needed for the entropy to be consisten
t with unitary black hole evaporation.\nhttps://indico.gssi.it/event/335/
LOCATION:Online
URL:https://indico.gssi.it/event/335/
END:VEVENT
BEGIN:VEVENT
SUMMARY:TBA
DTSTART;VALUE=DATE-TIME:20220316T133000Z
DTEND;VALUE=DATE-TIME:20220316T143000Z
DTSTAMP;VALUE=DATE-TIME:20220128T064500Z
UID:indico-event-327@indico.gssi.it
DESCRIPTION:Speakers: Elisa Resconi (Technical University Munich)\nhttps:/
/indico.gssi.it/event/327/
LOCATION:
URL:https://indico.gssi.it/event/327/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Neutrino oscillations: from the discovery to the future
DTSTART;VALUE=DATE-TIME:20220323T133000Z
DTEND;VALUE=DATE-TIME:20220323T143000Z
DTSTAMP;VALUE=DATE-TIME:20220128T064500Z
UID:indico-event-328@indico.gssi.it
DESCRIPTION:Speakers: Takaaki Kajita (The University of Tokyo)\nNeutrinos
have been assumed to have no mass. If neutrinos have mass\, neutrino osci
llations should occur. Neutrino oscillations were discovered by studying
atmospheric and solar neutrinos. I will discuss the discovery of neutri
no oscillations\, the status of the oscillation studies and the future pr
ospects for neutrino oscillation experiments.\nhttps://indico.gssi.it/even
t/328/
LOCATION:
URL:https://indico.gssi.it/event/328/
END:VEVENT
BEGIN:VEVENT
SUMMARY:TBA
DTSTART;VALUE=DATE-TIME:20220330T123000Z
DTEND;VALUE=DATE-TIME:20220330T133000Z
DTSTAMP;VALUE=DATE-TIME:20220128T064500Z
UID:indico-event-329@indico.gssi.it
DESCRIPTION:Speakers: Susanne Mertens (Technical University Munich)\nhttps
://indico.gssi.it/event/329/
LOCATION:
URL:https://indico.gssi.it/event/329/
END:VEVENT
BEGIN:VEVENT
SUMMARY:TBA
DTSTART;VALUE=DATE-TIME:20220420T123000Z
DTEND;VALUE=DATE-TIME:20220420T133000Z
DTSTAMP;VALUE=DATE-TIME:20220128T064500Z
UID:indico-event-330@indico.gssi.it
DESCRIPTION:Speakers: Giorgio Gratta (Stanford University)\nhttps://indico
.gssi.it/event/330/
LOCATION:
URL:https://indico.gssi.it/event/330/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Surveying the Dynamic Universe with the Fermi Gamma-ray Space Tele
scope
DTSTART;VALUE=DATE-TIME:20220427T123000Z
DTEND;VALUE=DATE-TIME:20220427T133000Z
DTSTAMP;VALUE=DATE-TIME:20220128T064500Z
UID:indico-event-331@indico.gssi.it
DESCRIPTION:Speakers: Judith Racusin (NASA's Goddard Space Flight Center)\
nThe Fermi Gamma-ray Space Telescope has provided continuous observations
of the keV-GeV gamma-ray sky for more than a decade\, discovering sources
varying on timescales of milliseconds to years\, opening up new source cla
sses and counterparts to other astrophysical messengers. In this seminar
\, I will highlight some of the biggest discoveries of the Fermi mission u
tilizing data from both the Gamma-ray Burst Monitor and the Large Area Tel
escope. I will outline what the coming years may bring for Fermi\, espec
ially in context of new and upgraded multiwavelength and multimessenger ob
servatories\, and what might be next for gamma-ray surveyors.\nhttps://ind
ico.gssi.it/event/331/
LOCATION:
URL:https://indico.gssi.it/event/331/
END:VEVENT
BEGIN:VEVENT
SUMMARY:High-Energy Neutrino Astrophysics in the Multimessenger Era
DTSTART;VALUE=DATE-TIME:20220504T123000Z
DTEND;VALUE=DATE-TIME:20220504T133000Z
DTSTAMP;VALUE=DATE-TIME:20220128T064500Z
UID:indico-event-332@indico.gssi.it
DESCRIPTION:Speakers: Kohta Murase (Pennsylvania State University)\nThe di
scovery of high-energy cosmic neutrinos opened a new window of astropartic
le physics. Their origin is a new mystery in the field\, which is tightly
connected to the long-standing puzzle about the origin of cosmic rays. I w
ill give an overview of the latest results on high-energy neutrino and cos
mic-ray observations\, and demonstrate the power of "multimessenger" appro
aches. In particular\, I will show that the observed fluxes of neutrinos\,
gamma rays\, and extragalactic cosmic rays can be understood in a unified
manner. I will also highlight the recent developments about astrophysical
neutrino emission from supermassive black holes and violent transient ph
enomena. Possibilities of utilizing high-energy neutrinos as a probe of ph
ysics beyond the Standard Model may be discussed.\nhttps://indico.gssi.it/
event/332/
LOCATION:
URL:https://indico.gssi.it/event/332/
END:VEVENT
BEGIN:VEVENT
SUMMARY:The Riemman Hypothesis
DTSTART;VALUE=DATE-TIME:20220511T123000Z
DTEND;VALUE=DATE-TIME:20220511T133000Z
DTSTAMP;VALUE=DATE-TIME:20220128T064500Z
UID:indico-event-333@indico.gssi.it
DESCRIPTION:Speakers: Fabrizio Tamburini (Zentrum für Kunst und Medientec
hnologie Karlsruhe)\nThe Riemann Hypothesis is one of the most challenging
and fascinating problems in mathematics\, with many implications also in
real life\, including classical cryptography and e-trading.\nBernhard Riem
ann in 1859 hypothesized that the complex function $\\zeta(z)$\, used as c
orrecting term for the counting of primes P before a given number N\, shou
ld admit a set of “non-trivial” complex zeros whose real part is alw
ays 1/2 in order to give the correct value of P. \nWe analyze two differ
ent approaches to better understand a possible route to solve the Riemann
Hypothesis.\nThe first one is based on the Hilbert and Pólya approach\, w
here one has to find a suitable Hermitian or unitary operator whose eigenv
alues distribute like the zeros of the zeta function. We apply the infinit
e-spin components Majorana equation for a family of particles in a Rindler
spacetime to overlap\, according to Regge theory\, the distributions of t
he zeros gluing together particle and antiparticle solutions\, overlapping
with the zeros of zeta.\nThe other approach is instead based on string sc
attering. More precisely\, we compare the distribution of the zeros of zet
a with that of the poles of the scattering matrix S describing a system of
tachyonic strings. To prove the Riemann hypothesis one has to explain the
still unclear point for which the poles and zeros of the S-matrix overlap
the zeros of zeta but they always come out in pairs\, related via complex
conjugation. This can be explained with the Reggeized version of the Majo
rana solution in an hyperbolic spacetime with which one obtains a set of a
ngular momenta and coordinates corresponding to the zeros of zeta as a fun
ction of the angular momentum j.\nhttps://indico.gssi.it/event/333/
LOCATION:
URL:https://indico.gssi.it/event/333/
END:VEVENT
BEGIN:VEVENT
SUMMARY:NUCLEi — Numerical methods for compression and learning
DTSTART;VALUE=DATE-TIME:20220511T150000Z
DTEND;VALUE=DATE-TIME:20220513T170000Z
DTSTAMP;VALUE=DATE-TIME:20220128T064500Z
UID:indico-event-344@indico.gssi.it
DESCRIPTION:As the amount of available data is growing very fast\, the imp
ortance of being able to handle and exploit very large scale data in an ef
ficient and robust manner is becoming increasingly more relevant. This wor
kshop aims at bringing together experts from signal processing\, compresse
d sensing\, low rank methods and machine learning with the goal of highlig
hting modern approaches as well as challenges in computational mathematics
arising in all these areas and at their intersection.\nhttps://indico.gss
i.it/event/344/
LOCATION:Rectorate-Building-Auditorium (GSSI)
URL:https://indico.gssi.it/event/344/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Foundations of Cosmic Ray Astrophysics - Varenna 2022
DTSTART;VALUE=DATE-TIME:20220623T063000Z
DTEND;VALUE=DATE-TIME:20220629T133000Z
DTSTAMP;VALUE=DATE-TIME:20220128T064500Z
UID:indico-event-339@indico.gssi.it
DESCRIPTION:Speakers: Elena Amato (INAF Arcetri Observatory)\, Felix Aharo
nian (DIAS Dublin (Ireland))\, Carmelo Evoli (GSSI)\, Pasquale Blasi (GSSI
and INFN)\nCourse 208 - International School of Physics "Enrico Fermi"\n\
n\n\n📣 Join our Telegram group for last-minute announcements:\n\nhttps:
//t.me/varenna2022\n\nImportant Dates\n\n\n Application deadline: Friday\
, 15 April 2022\n Notification of acceptance: Friday\, 22 April 2022\n Ope
ning of the Course: Monday\, 24 June 2022 - 9.00 a.m.\n Closing of the Cou
rse: Saturday\, 29 June 2022 - 1.30 p.m\n Arrival day: Sunday\, 23 June
2022\n\n\nTopics\n\n\n High-energy Cosmic Rays and gamma-radiation\n Parti
cle acceleration in Pulsars and PWNe\n Charged particles in turbulent fiel
ds and Cosmic Ray transport\n Cosmic Ray propagation in extragalactic spac
e and secondary messengers\n Particle acceleration at shocks and in turbul
ence\n Phenomenological models of galactic Cosmic Ray transport\n Star For
mation Regions and Cosmic Rays\n The microphysics of Cosmic Ray instabilit
ies\n Interactions of Cosmic Rays with matter and radiation\n Magnetic rec
onnection\n Future facilities in high-energy astrophysics\n Basics of Cosm
ic Ray Feedback\n\n\nDirectors\n\nFelix Aharonian - Dublin Institute of Ad
vanced Studies (Ireland) and MPIK Heidelberg (Germany)\nElena Amato - IN
AF Osservatorio di Arcetri (Italy)\nPasquale Blasi - GSSI and INFN\, L'Aq
uila (Italy)\n\nScientific Secretary\n\nCarmelo Evoli - GSSI and INFN\, L'
Aquila (Italy)\n\n \n\nOrganised by\n\n \nhttps://indico.gssi.it/event/3
39/
LOCATION:Main Lecture Hall (Villa Monastero in Varenna)
URL:https://indico.gssi.it/event/339/
END:VEVENT
END:VCALENDAR