The spectrum of single-trace operators of order-one dimension,
of holographic CFTs at strong coupling and large N, can be mapped
to the spectrum of Kaluza-Klein (KK) excitations over the dual AdS
supergravity solutions. Computing these KK spectra is...
The density of states of a unitary conformal field theory is
known to have a universal behavior at high energy. In two
dimensions, this behavior is described by the Cardy formula. If the
theory has symmetry, it is interesting to understand the...
We add non-linear and state-dependent terms to the Hamiltonian
of quantum field theory. The resulting low-energy theory,
non-linear quantum mechanics, is causal, preserves probability and
permits a consistent description of the process of...
I will showcase the computation of the next-to-leading order
scattering waveform in classical gravity using amplitude
techniques. I will first give an overview of how to compute generic
classical observables in gravity using scattering amplitude...
The key word in the title is “IN”. Unlike AdS where observers
can be thought of as living on the boundary of space, or even in a
laboratory beyond the boundary, in dS the observer is part of the
system; he or she lives “in” the de Sitter spacetime...
The entropy of supersymmetric black holes in string theory
compactifications can be related to that of a D- or M-brane system,
which in many cases can be further reduced to a two-dimensional
conformal field theory (CFT). For black holes in M-theory...
"Saturons" are macroscopic objects that exhibit maximal
micristate degeneracy within the validity of a given quantum
field theoretic description. Due to this feature, saturons
and black holes belong to the same universality class with common
key...
Some aspects of the black hole spectrum, coming from spacetime
wormhole contributions, can be modeled by a random matrix ensemble.
It is important to understand the appropriate ensemble for theories
with extended supersymmetry, since for example...
Perhaps the most important problem in physics or quantum
chemistry is to determine properties of the ground state of an
interacting system of fermions. As a quantum mechanical
problem, there may be no efficient classical witness to the ground
state...
