Format results
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Arithmetic Electric-Magnetic Duality
David Ben-Zvi - The University of Texas at Austin
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Dos and Don’ts of Folding Time
Sebastian Mizera - Princeton University
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Dynamical Formation of Merging Compact Binaries
Dong Lai - Cornell University
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Nuclear astrophysics with gravitational wave observations
Jocelyn Read - California State University, Fullerton
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The Hycean Paradigm in Exoplanet Habitability - VIRTUAL
Nikku Madhusudhan - University of Cambridge
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A measured approach toward long-range entangled matter
Timothy Hsieh - Perimeter Institute for Theoretical Physics
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Colloquium - Insights from Warped Extra Dimensions - VIRTUAL
Lisa Randall - Harvard University
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Quantum cosmology from first principles: second thoughts
Lee Smolin - Perimeter Institute for Theoretical Physics
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Science communication and engagement for basic science in Africa: Where do we stand?
Stéphane Kenmoe - University of Duisburg-Essen
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A minimal SM/LCDM cosmology based on conformal symmetry, analyticity and CPT
Neil Turok - University of Edinburgh
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Arithmetic Electric-Magnetic Duality
David Ben-Zvi - The University of Texas at Austin
The Langlands program is a grand organizing vision for a large slice of number theory and representation theory. A shockingly accurate metaphor for the Langlands program has emerged as electric-magnetic duality in four-dimensional gauge theory, but where the role of spacetime is played by objects… -
Galaxy Surveys: A Precision Primordial Probe
What happened in the earliest moments of the Universe? Despite decades of theoretical and observational work, a detailed understanding of the primordial Universe has remained elusive. In this talk, I will show how surveys of millions of galaxies can shed new light on these issues by constraining the… -
Dos and Don’ts of Folding Time
Sebastian Mizera - Princeton University
I will summarize recent progress in uncovering the analytic structure of scattering amplitudes. The overarching theme will be exploiting new intricate ways of analytically continuing time, extending beyond the Wick rotation. I will highlight a broad range of applications: from high-precision… -
Dynamical Formation of Merging Compact Binaries
Dong Lai - Cornell University
The recent breakthrough in the detection of gravitational waves (GWs) from merging black hole (BH) and neutron star (NS) binaries by advanced LIGO/Virgo has generated renewed interest in understanding the formation mechanisms of merging compact binaries, from the evolution of massive stellar… -
Nuclear astrophysics with gravitational wave observations
Jocelyn Read - California State University, Fullerton
Gravitational-wave observatories have established a new field of transient astronomy. The most recent LIGO-Virgo-KAGRA catalog, GWTC-3, identified 90 merging binaries, which range from a double neutron star with a total mass of 2.7 at 40 Mpc (GW170817) to a double black hole with a total mass of 150… -
Why I think Double-scaled SYK at infinite Temperature is a Theory of de Sitter Space
Leonard Susskind - Stanford University
Abstract TBA --- Zoom link https://pitp.zoom.us/j/98123499206?pwd=QWlHcFBJWE8zRTlyT1A5WUVsQS9NUT09 -
The Hycean Paradigm in Exoplanet Habitability - VIRTUAL
Nikku Madhusudhan - University of Cambridge
Atmospheric characterisation of habitable-zone exoplanets is a major frontier of exoplanet science. The detection of atmospheric signatures of habitable Earth-like exoplanets is challenging due to their small planet-star size contrast and thin atmospheres with high mean molecular weight. Recently, a… -
A measured approach toward long-range entangled matter
Timothy Hsieh - Perimeter Institute for Theoretical Physics
Long-range entangled quantum matter encompasses a wealth of fascinating phenomena including fractionalization and criticality. I will show how quantum dynamics involving measurements can both enable new kinds of long-range entangled states and facilitate their realization on quantum simulators. In… -
Colloquium - Insights from Warped Extra Dimensions - VIRTUAL
Lisa Randall - Harvard University
Warped extra dimensions were originally introduced as a way of addressing the hierarchy problem. But insights from these scenarios have extended to black hole physics, cosmology, and even mechanisms for addressing issues in purely four dimensions. We investigate this scenario and some compelling… -
Quantum cosmology from first principles: second thoughts
Lee Smolin - Perimeter Institute for Theoretical Physics
I argue that the answer is yes, by reviewing the history and current status of such a theory. Since 1982, I have been developing a series of such theories, beginning in 1982 with an N --> infinity limit of 2+1 dimensional matrix model (the IAS model), through another N --> infinity, T --> 0 limit of… -
Science communication and engagement for basic science in Africa: Where do we stand?
Stéphane Kenmoe - University of Duisburg-Essen
In this colloquium, the communicative boundary between science and society in Africa will be explored, using physics as an illustration. Different types of contact zones and scenes will be discussed, as well as the societal impact of staging and narrative formats. Based on our ongoing engagement… -
A minimal SM/LCDM cosmology based on conformal symmetry, analyticity and CPT
Neil Turok - University of Edinburgh
The universe has turned out to be simpler than expected on both very small and very large scales. We propose a minimal, highly predictive framework connecting particle physics to cosmology. Instead of introducing an ``attractor” phase such as inflation we extrapolate the observed universe all the…