Physical Ramifications of Quantum Geometry
John Baez - University of California, Riverside
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About Semi-Classical Quantum Gravity
Alejandro Corichi - National Autonomous University of Mexico
Two Dimensional Strings, Matrix Models and the Rolling Tachyon
Gautam Mandal - Tata Institute of Fundamental Research (TIFR)
Contextuality for Preparations, Transformations, and Unsharp Measurements
Robert Spekkens - Perimeter Institute for Theoretical Physics
Structure formation beyond the standard paradigm
Stefan Hofmann - Ludwig-Maximilians-Universität München (LMU)
Inflation from String Theory
James Cline - McGill University
Supersymmetric large extra dimensions and dark energy.
Cliff Burgess - McMaster University
12/13 PSI - Explorations in String Theory Lecture 12
Pedro Vieira - Perimeter Institute for Theoretical Physics
Quantum transport in one dimension: from integrability to many-body localization and topology
Joel Moore - University of California, Berkeley
Recent advances in analytical theory and numerical methods enable some long-standing questions about transport in one dimension to be answered; these questions are closely related to transport experiments in quasi-1D compounds. The spinless fermion chain with nearest-neighbor interactions at half…
On memory in exponentially expanding spaces
Douglas Stanford - Stanford University
I will present recent work, done in collaboration with Daniel Roberts, on the global memory of initial conditions that is sometimes, but not always, retained by fluctuating fields on de Sitter space, Euclidean anti de Sitter space, and regular infinite trees. I will discuss applications to the…
12/13 PSI - Explorations in Condensed Matter Lecture 12
Guifre Vidal - Alphabet (United States) , Xiao-Gang Wen - Massachusetts Institute of Technology (MIT) - Department of Physics
The continuum limit of tensor networks: a path integral representation
David Jennings - Imperial College London
I will discuss a path-integral representation of continuum tensor networks that extends the continuous MPS class for 1-D quantum fields to arbitrary spatial dimensions while encoding desirable symmetries. The physical states can be interpreted as arising through a continuous measurement process by a…
12/13 PSI - Explorations in String Theory Lecture 11
Pedro Vieira - Perimeter Institute for Theoretical Physics
12/13 PSI - Explorations in Condensed Matter Lecture 11
Guifre Vidal - Alphabet (United States) , Xiao-Gang Wen - Massachusetts Institute of Technology (MIT) - Department of Physics
12/13 PSI - Explorations in String Theory Lecture 10
Pedro Vieira - Perimeter Institute for Theoretical Physics
The imaginary part of the gravitational action and black hole entropy
Yasha Neiman - Okinawa Institute of Science and Technology Graduate University
I present a candidate for a new derivation of black hole entropy. The key observation is that the action of General Relativity in bounded regions has an imaginary part, arising from the boundary term. The formula for this imaginary part is closely related to the Bekenstein-Hawking entropy formula…