Abstract: We present a wholly self-consistent,
complete cyclic bouncing cosmology based on components drawn from
string theory and constructed in a way that is under perturbative
control throughout (e.g., with temperatures well below the
string...
Abstract: Entanglement growth at late times is
explained by the membrane picture in various chaotic quantum
systems. In this work, we discuss entanglement growth in the large
N Brownian SYK chain. We prepare an infinite-temperature
thermofield...
Abstract: In this talk, I will discuss
Cosmohedra. These are geometric objects which encode the vacuum
wavefunction for theories with colored scalars with cubic
interactions. I will start by introducing the vacuum wavefunction,
both in Minkowski and...
Abstract: Recently a fruit fly brain was
reconstructed in electron microscopic detail. Tens of millions of
synapses were identified on over 100,000 neurons' entangled
branches, which would span a football field if unraveled end to
end. This "fly...
Abstract: I will briefly review one-loop
gravitational path integral around Euclidean de Sitter space $S^D$,
focusing on a complex phase which was recently proposed to be
mostly canceled by including an observer. I will then explore this
proposal in...
Abstract: I will briefly review the
obstacles to constructing Anti–de Sitter vacua in string theory
with very small extra dimensions compared to the AdS length, and
the main ideas proposed to overcome them. I will then focus on a
particular class of...
Abstract: We construct a family of
asymptotically flat Cauchy data for the Einstein vacuum equations
that contain no trapped surfaces, yet whose future development
gives rise to multiple strongly causal independent trapped
surfaces. In particular...
Abstract: Lightlike conformal
line defects should appear in a number of places in
theoretical physics, from null Wilson lines, to
impurities moving at the speed of sound in a material, and as
exponentials of light-ray/detector operators...
Abstract: In 2017, a proposal was made for
defining RT surfaces in asymptotically flat spacetimes, with the
goal of computing the entanglement entropy in a putative dual
theory.
To avoid confusion with the usual RT prescription, the
resulting...
