Before the Big Bang: Is There Evidence For Something And If So, What?
Roger Penrose - University of Oxford
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Was Spacetime a Glorious Historical Accident?
Julian Barbour - University of Oxford
Time and the big bang
Neil Turok - University of Edinburgh
Causality and Information Flow in Quantum Protocols
Samson Abramsky - University of Oxford
Newcomb\'s problem and Bell\'s theorem
Eric Cavalcanti - Griffith University
Chance and Romance: a marriage of classical and quantum probability
Jenann Ismael - Columbia University
Time-Energy Uncertainty and short-time Nonequilirium Thermodynamics
Noam Erez - Weizmann Institute of Science
The three - slit experiment
Urbasi Sinha - Raman Research Institute
Spacetime Entropy of Free Fields, and its Relevance to Black Holes
Joshua Jones - Dublin Institute For Advanced Studies
Motivated by the frame independence of the Bekenstein-Hawking black hole entropy, and the possibility of it being fundamentally entanglement entropy, I will present a spacetime definition for the entanglement entropy of free quantum fields. This definition is a spectral formulation, conducive to…
The Gravitational Wave Bias Parameter from Angular Power Spectra: Bridging Between Galaxies and Binary Black Holes
Amirhossein Dehghanizadeh - The University of Waterloo
This study presents the modeling of the gravitational wave (GW) bias parameter by bridging a connection between simulated GW sources and galaxies in low redshift galaxy surveys 2MPZ and WISExSCOS (WISC). We study this connection by creating a mock GW catalog, populating galaxy surveys with binary…
Graphs, curves, and their moduli spaces (Part 1 of 2)
Michael Borinsky - Perimeter Institute for Theoretical Physics
I will give a gentle introduction to the moduli space of graphs and its fine moduli space cousin known as Outer Space. This moduli space of graphs has many applications to various branches of mathematical physics, algebraic geometry, and geometric group theory. It is a natural object to consider…
Quantum complementarity: A novel resource for exclusion
Chung-yun Hsieh
Complementarity is a phenomenon explaining several core features of quantum theory, such as the well-known uncertainty principle. Roughly speaking, two objects are said to be complementary if being certain about one of them necessarily forbids useful knowledge about the other. Two quantum…
Lecture - Quantum Field Theory III - PHYS 777
Jaume Gomis - Perimeter Institute for Theoretical Physics
Statistical Fluctuations in the Causal Set-Continuum Correspondence
Yasaman Kouchekzadeh Yazdi - Dublin Institute For Advanced Studies
Causal set theory is an approach to quantum gravity that proposes that spacetime is fundamentally discrete and the causal relations among the discrete elements play a prominent role in the physics. Progress has been made in recognizing and understanding how some continuumlike features can emerge…
Dynamical Yangians of cotangent Lie algebras over moduli spaces of G-bundles
Raschid Abedin
In this talk, I will present the construction of the Yangian of a cotangent Lie algebra from the geometry of the equivariant affine Grassmannian. Furthermore, I will discuss how this quantum group can be dynamically twisted to a quantum groupoid over a neighborhood in the moduli space of G-bundles…
Nonabelian Anyon Condensation in 2+1d topological orders: A String-Net Model Realization
Yidun Wan - Fudan University
In this talk, we develop a comprehensive framework for realizing anyon condensation of topological orders within the string-net model by constructing a Hamiltonian that bridges the parent string-net model before and the child string-net model after anyon condensation. Our approach classifies all…
Gravitational atoms and black hole binaries
Giovanni Tomaselli - University of Amsterdam
Various models of physics beyond the Standard Model predict the existence of ultralight bosons. These particles can be produced through superradiant instabilities, which create boson clouds around rotating black holes, forming so-called "gravitational atoms". In this talk, I review a series of…