GGI Tea Break's Seminars
from
Saturday 1 January 2022 (11:00)
to
Saturday 31 December 2022 (13:00)
Monday 27 December 2021
Tuesday 28 December 2021
Wednesday 29 December 2021
Thursday 30 December 2021
Friday 31 December 2021
Saturday 1 January 2022
Sunday 2 January 2022
Monday 3 January 2022
Tuesday 4 January 2022
Wednesday 5 January 2022
Thursday 6 January 2022
Friday 7 January 2022
Saturday 8 January 2022
Sunday 9 January 2022
Monday 10 January 2022
Tuesday 11 January 2022
Wednesday 12 January 2022
Thursday 13 January 2022
Friday 14 January 2022
Saturday 15 January 2022
Sunday 16 January 2022
Monday 17 January 2022
Tuesday 18 January 2022
Wednesday 19 January 2022
15:00
GGI Tea Breaks' Special Edition "Steven Weinberg and his legacy"
-
Edward Witten
(
IAS Princeton
)
Howard M. Georgi
(
Harvard University
)
Nima Arkani-Hamed
(
IAS Princeton
)
Riccardo Barbieri
(
SNS, Pisa
)
GGI Tea Breaks' Special Edition "Steven Weinberg and his legacy"
Edward Witten
(
IAS Princeton
)
Howard M. Georgi
(
Harvard University
)
Nima Arkani-Hamed
(
IAS Princeton
)
Riccardo Barbieri
(
SNS, Pisa
)
15:00 - 19:30
"The effort to understand the universe is one of the very few things that lifts human life a little above the level of farce, and gives it some of the grace of tragedy." The Galileo Galilei Institute celebrates Steven Weinberg, a founding father of the theory of fundamental interactions and one of the greatest theoretical physicists of the last century. His work has been a source of inspiration and guidance for generations of physicists and is at the heart of current front-line research. This special GGI Tea Breaks' event is dedicated to the research of Steven Weinberg, its impact and legacy in theoretical physics. The programme includes four talks, each focused on a particular broad area of research where the work of Weinberg led to breakthrough progress. His contribution will be put into historical context and its relevance for present-day research will be discussed.
Thursday 20 January 2022
Friday 21 January 2022
Saturday 22 January 2022
Sunday 23 January 2022
Monday 24 January 2022
Tuesday 25 January 2022
Wednesday 26 January 2022
Thursday 27 January 2022
Friday 28 January 2022
Saturday 29 January 2022
Sunday 30 January 2022
Monday 31 January 2022
Tuesday 1 February 2022
Wednesday 2 February 2022
17:00
Cosmic Birefringence
-
Eiichiro Komatsu
(
MPI For Astrophysics, Garching
)
Cosmic Birefringence
Eiichiro Komatsu
(
MPI For Astrophysics, Garching
)
17:00 - 18:30
Polarised light of the cosmic microwave background, the remnant light of the Big Bang, is sensitive to parity-violating physics. In this presentation we report on new measurements of parity violation, called “cosmic birefringence”, from polarisation data of the European Space Agency (ESA)’s Planck satellite. The statistical significance of the measured signal is about 3 sigma. If confirmed with higher statistical significance in future, it would have profound implications for the elusive nature of dark matter and dark energy.
Thursday 3 February 2022
Friday 4 February 2022
Saturday 5 February 2022
Sunday 6 February 2022
Monday 7 February 2022
Tuesday 8 February 2022
Wednesday 9 February 2022
17:00
Scattering Amplitudes in Maximally Supersymmetric Gauge Theory and a New Duality
-
Lance Dixon
(
SLAC (Stanford University)
)
Scattering Amplitudes in Maximally Supersymmetric Gauge Theory and a New Duality
Lance Dixon
(
SLAC (Stanford University)
)
17:00 - 18:30
Scattering amplitudes are the arena where quantum field theory directly meets collider experiments. An excellent model for scattering in QCD is provided by N=4 super-Yang-Mills theory, particularly in the planar limit of a large number of colors, where the theory becomes integrable, and amplitudes become dual to light-like polygonal Wilson-loop expectation values. The first nontrivial case is the 6-gluon amplitude (hexagonal Wilson loop), which can be computed to 7 loops using a bootstrap which is based on the rigidity of the function space of multiple polylogarithms, together with a few other conditions. It is also possible to bootstrap a particular form factor for the chiral stress-tensor operator to produce 3 gluons, through 8 loops. Remarkably, the two sets of results are related by a mysterious “antipodal” duality, which exchanges the role of branch cuts and derivatives. I will describe how the bootstrapping works and what we know about this new duality.
Thursday 10 February 2022
Friday 11 February 2022
Saturday 12 February 2022
Sunday 13 February 2022
Monday 14 February 2022
Tuesday 15 February 2022
Wednesday 16 February 2022
Thursday 17 February 2022
Friday 18 February 2022
Saturday 19 February 2022
Sunday 20 February 2022
Monday 21 February 2022
Tuesday 22 February 2022
Wednesday 23 February 2022
Thursday 24 February 2022
Friday 25 February 2022
Saturday 26 February 2022
Sunday 27 February 2022
Monday 28 February 2022
Tuesday 1 March 2022
Wednesday 2 March 2022
17:00
FOCUS MEETING “Challenges and Opportunities of a Muon Collider”
-
Daniel Schulte
(
(CERN)
)
Lian-Tao Wang
(
(University of Chicago)
)
FOCUS MEETING “Challenges and Opportunities of a Muon Collider”
Daniel Schulte
(
(CERN)
)
Lian-Tao Wang
(
(University of Chicago)
)
17:00 - 18:30
Following the European strategy update, and as a part of the Snowmass studies in the US, high energy muon colliders have received a lot of interest. They have been integrated into the European Accelerator R&D Roadmap. This concept promises to reach very high energies and luminosities because the beam can be accelerated and collided in rings due to the suppression of synchrotron radiation. On the one hand, the short muon life time, however, poses a number of challenges for the concept, ranging from muon cooling to acceleration, from neutrino radiation to detector design. On the other hand, recent studies have painted a broad picture of the physics potential of such machines. In this Focus Meeting, Daniel Schulte (CERN) and Lian-Tao Wang (U. Chicago) will give an overview of the muon collider concept, highlight the associated challenges and review its physics potential.
Thursday 3 March 2022
Friday 4 March 2022
Saturday 5 March 2022
Sunday 6 March 2022
Monday 7 March 2022
Tuesday 8 March 2022
Wednesday 9 March 2022
Thursday 10 March 2022
Friday 11 March 2022
Saturday 12 March 2022
Sunday 13 March 2022
Monday 14 March 2022
Tuesday 15 March 2022
Wednesday 16 March 2022
Thursday 17 March 2022
Friday 18 March 2022
Saturday 19 March 2022
Sunday 20 March 2022
Monday 21 March 2022
Tuesday 22 March 2022
Wednesday 23 March 2022
Thursday 24 March 2022
Friday 25 March 2022
Saturday 26 March 2022
Sunday 27 March 2022
Monday 28 March 2022
Tuesday 29 March 2022
Wednesday 30 March 2022
17:00
Flavour Physics: Old problems and recent hopes
-
Gino Isidori
(
Univ. of Zurich
)
Flavour Physics: Old problems and recent hopes
Gino Isidori
(
Univ. of Zurich
)
17:00 - 18:30
Flavour physics represents one of the most puzzling aspect of particle physics and, at present, is also one of the most active experimental frontiers. I present a brief introduction to this field, with special emphasis on the subject of Lepton Flavour Universality (LFU). I review the present hints of LFU violations observed in B decays, discussing their phenomenological interest, and their possible interpretation in terms of physics beyond the Standard Model, both at the EFT level and beyond.
Thursday 31 March 2022
Friday 1 April 2022
Saturday 2 April 2022
Sunday 3 April 2022
Monday 4 April 2022
Tuesday 5 April 2022
Wednesday 6 April 2022
17:00
Berry phases, wormholes and factorization in AdS/CFT
-
Johanna Erdmenger
(
University of Würzburg
)
Berry phases, wormholes and factorization in AdS/CFT
Johanna Erdmenger
(
University of Würzburg
)
17:00 - 18:30
Within the AdS/CFT correspondence, the entanglement properties of the CFT are related to wormholes in the dual gravity theory. This gives rise to questions about the factorisation properties of the Hilbert spaces on both sides of the correspondence. We review these issues and show how the Berry phase, a geometrical phase encoding information about topology, may be used to reveal similarities between the Hilbert space structure on both sides of the correspondence. Mathematical concepts such as coadjoint orbits play an important role. In addition to its relevance for quantum gravity, this analysis also suggests how to experimentally realise the Berry phase and its relation to entanglement in table-top experiments involving photons or electrons. This provides a new example for relations between very different branches of physics that follow from the AdS/CFT correspondence and its generalisations.
Thursday 7 April 2022
Friday 8 April 2022
Saturday 9 April 2022
Sunday 10 April 2022
Monday 11 April 2022
Tuesday 12 April 2022
Wednesday 13 April 2022
17:00
Neutrinos: from surprising past results, to current unexplained anomalies and questions for the future
-
Silvia Pascoli
(
Università di Bologna
)
Neutrinos: from surprising past results, to current unexplained anomalies and questions for the future
Silvia Pascoli
(
Università di Bologna
)
17:00 - 18:30
In the past twenty years, the discovery of neutrino oscillations has changed our understanding of neutrinos and proved that the Standard Model of particle physics is incomplete. We now know that neutrinos have mass and mix. An impressive progress has been made, thanks to a broad experimental programme, and most of their properties have been determined with precision. In this colloquium, I will briefly review the current knowledge of neutrino properties, highlighting the still open questions, with emphasis on the nature of neutrinos, their masses and leptonic CP violation. I will then discuss the hints for a richer structure beyond three-neutrino mixing, which have been interpreted in terms of sterile neutrinos and/or new neutrino interactions. I will review the experimental status and the expected near future developments and their possible theoretical implications.
Thursday 14 April 2022
Friday 15 April 2022
Saturday 16 April 2022
Sunday 17 April 2022
Monday 18 April 2022
Tuesday 19 April 2022
Wednesday 20 April 2022
Thursday 21 April 2022
Friday 22 April 2022
Saturday 23 April 2022
Sunday 24 April 2022
Monday 25 April 2022
Tuesday 26 April 2022
Wednesday 27 April 2022
17:00
Pulling yourself up by your bootstraps in quantum gravity
-
Leonardo Rastelli
(
Yang Institute, Stony Brook
)
Pulling yourself up by your bootstraps in quantum gravity
Leonardo Rastelli
(
Yang Institute, Stony Brook
)
17:00 - 18:30
The bootstrap program leverages symmetry and mathematical consistency to study strongly coupled quantum systems. Its flagship result has been the solution of the 3D critical Ising model from abstract principles alone. In this talk I will outline how universal properties of quantum gravity can also be studied from a bootstrap perspective. A surprising discovery has been a connection between black hole thermodynamics and the sphere packing problem, a venerable question in pure mathematics.
Thursday 28 April 2022
Friday 29 April 2022
Saturday 30 April 2022
Sunday 1 May 2022
Monday 2 May 2022
Tuesday 3 May 2022
Wednesday 4 May 2022
Thursday 5 May 2022
Friday 6 May 2022
Saturday 7 May 2022
Sunday 8 May 2022
Monday 9 May 2022
Tuesday 10 May 2022
Wednesday 11 May 2022
17:00
Exactly solved models of many-body quantum chaos
-
Tomaz Prosen
(
University of Ljubljana
)
Exactly solved models of many-body quantum chaos
Tomaz Prosen
(
University of Ljubljana
)
17:00 - 18:30
I will discuss the problem of unreasonable effectiveness of random matrix theory for description of spectral fluctuations in extended quantum lattice systems. A class of locally interacting spin systems has been recently identified where the spectral form factor is proven to match with gaussian or circular ensembles of random matrix theory, and where spatiotemporal correlation functions of local observables as well as some measures of dynamical complexity can be calculated analytically. These, so-called dual unitary systems, include integrable, non-ergodic, ergodic, and generically, (maximally) chaotic cases. After reviewing the basic results on dual unitary Floquet circuits, I will argue that correlation functions of these models are generally perturbatively stable with respect to breaking dual-unitarity, and describe a simple result within this framework.
Thursday 12 May 2022
Friday 13 May 2022
Saturday 14 May 2022
Sunday 15 May 2022
Monday 16 May 2022
Tuesday 17 May 2022
Wednesday 18 May 2022
Thursday 19 May 2022
Friday 20 May 2022
Saturday 21 May 2022
Sunday 22 May 2022
Monday 23 May 2022
Tuesday 24 May 2022
Wednesday 25 May 2022
Thursday 26 May 2022
Friday 27 May 2022
Saturday 28 May 2022
Sunday 29 May 2022
Monday 30 May 2022
Tuesday 31 May 2022
Wednesday 1 June 2022
Thursday 2 June 2022
Friday 3 June 2022
Saturday 4 June 2022
Sunday 5 June 2022
Monday 6 June 2022
Tuesday 7 June 2022
Wednesday 8 June 2022
17:00
Why entanglement matters
-
Pasquale Calabrese
(
Sissa
)
Why entanglement matters
Pasquale Calabrese
(
Sissa
)
17:00 - 18:30
One century ago Erwin Schrödinger called entanglement "... the characteristic trait of quantum mechanics, the one that enforces its entire departure from classical lines of thought". However, only in the last two decades the study of quantum entanglement in many body systems (i.e. field theories) reached such a mature stage to lead to an unprecedented exchange of ideas and concepts between fields that were previously unrelated like quantum information, high-energy physics, statistical mechanics, general relativity, condensed matter and many more. In this colloquium-style tea break, I will discuss a number of examples taken from different fields in which many-body entanglement is the characteristic physical trait.
Thursday 9 June 2022
Friday 10 June 2022
Saturday 11 June 2022
Sunday 12 June 2022
Monday 13 June 2022
Tuesday 14 June 2022
Wednesday 15 June 2022
Thursday 16 June 2022
Friday 17 June 2022
Saturday 18 June 2022
Sunday 19 June 2022
Monday 20 June 2022
Tuesday 21 June 2022
Wednesday 22 June 2022
17:00
Bound States in Heavy Dark Sectors: from WIMPonium to Squeezeout
-
Tracy Slatyer
(
MIT
)
Bound States in Heavy Dark Sectors: from WIMPonium to Squeezeout
Tracy Slatyer
(
MIT
)
17:00 - 18:30
The nature of dark matter remains one of the great puzzles of fundamental physics, with potential connections to a plethora of deep questions. While dark matter is often assumed to be collisionless, dark matter particles may interact with each other through either the known forces of the Standard Model of particle physics, or new "dark" forces, while remaining consistent with current constraints. In either case, dark matter may form bound states similar to those we observe in ordinary matter. I will discuss a range of possible implications of the existence of such bound states, including observational signatures in gamma-ray telescopes, and modifications to the history of the cosmos allowing for strikingly heavy dark matter in strongly-interacting dark sectors.
Thursday 23 June 2022
Friday 24 June 2022
Saturday 25 June 2022
Sunday 26 June 2022
Monday 27 June 2022
Tuesday 28 June 2022
Wednesday 29 June 2022
Thursday 30 June 2022
Friday 1 July 2022
Saturday 2 July 2022
Sunday 3 July 2022
Monday 4 July 2022
Tuesday 5 July 2022
Wednesday 6 July 2022
Thursday 7 July 2022
Friday 8 July 2022
Saturday 9 July 2022
Sunday 10 July 2022
Monday 11 July 2022
Tuesday 12 July 2022
Wednesday 13 July 2022
Thursday 14 July 2022
Friday 15 July 2022
Saturday 16 July 2022
Sunday 17 July 2022
Monday 18 July 2022
Tuesday 19 July 2022
Wednesday 20 July 2022
Thursday 21 July 2022
Friday 22 July 2022
Saturday 23 July 2022
Sunday 24 July 2022
Monday 25 July 2022
Tuesday 26 July 2022
Wednesday 27 July 2022
Thursday 28 July 2022
Friday 29 July 2022
Saturday 30 July 2022
Sunday 31 July 2022
Monday 1 August 2022
Tuesday 2 August 2022
Wednesday 3 August 2022
Thursday 4 August 2022
Friday 5 August 2022
Saturday 6 August 2022
Sunday 7 August 2022
Monday 8 August 2022
Tuesday 9 August 2022
Wednesday 10 August 2022
Thursday 11 August 2022
Friday 12 August 2022
Saturday 13 August 2022
Sunday 14 August 2022
Monday 15 August 2022
Tuesday 16 August 2022
Wednesday 17 August 2022
Thursday 18 August 2022
Friday 19 August 2022
Saturday 20 August 2022
Sunday 21 August 2022
Monday 22 August 2022
Tuesday 23 August 2022
Wednesday 24 August 2022
Thursday 25 August 2022
Friday 26 August 2022
Saturday 27 August 2022
Sunday 28 August 2022
Monday 29 August 2022
Tuesday 30 August 2022
Wednesday 31 August 2022
Thursday 1 September 2022
Friday 2 September 2022
Saturday 3 September 2022
Sunday 4 September 2022
Monday 5 September 2022
Tuesday 6 September 2022
Wednesday 7 September 2022
Thursday 8 September 2022
Friday 9 September 2022
Saturday 10 September 2022
Sunday 11 September 2022
Monday 12 September 2022
Tuesday 13 September 2022
Wednesday 14 September 2022
Thursday 15 September 2022
Friday 16 September 2022
Saturday 17 September 2022
Sunday 18 September 2022
Monday 19 September 2022
Tuesday 20 September 2022
Wednesday 21 September 2022
Thursday 22 September 2022
Friday 23 September 2022
Saturday 24 September 2022
Sunday 25 September 2022
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Wednesday 28 September 2022
Thursday 29 September 2022
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Saturday 1 October 2022
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Thursday 1 December 2022
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Wednesday 28 December 2022
Thursday 29 December 2022
Friday 30 December 2022
Saturday 31 December 2022