Conveners
W2-4 Fields and Strings II (DTP) | Champs et cordes II (DPT)
- Jamie Sully
Entanglement entropy in a Quantum Field Theory is an interesting geometric observable which provides information on how degrees of freedom at different points are coupled. Thus, entanglement entropy can be used as a tool for probing the non-locality structure of theories on fuzzy spaces. I will describe how geometric entanglement entropy can be studied in a scalar field theory on a fuzzy...
There are two known apparently massless fields in nature, the photon and the graviton. Interestingly, their massless nature in each case leads to similar infrared catastrophes for quantum electrodynamics and perturbative quantum gravity. In this talk, I will review some quantum information theoretic issues stemming from the copious production of soft photons and soft gravitons in elementary...
Conformal blocks are used to study the correlation functions of conformal field theories; quantum field theories which are invariant under conformal transformations. A consideration affecting the use of conformal blocks is that they can be difficult to compute efficiently. The anti-de Sitter/conformal field theory correspondence, a conjectured duality with wide applications in theoretical...
We study a scalar field in a 1D quantum cavity governed by a non-Lorentz invariant action. We demonstrate that the energy levels depend on the velocity of the cavity's walls with respect to a preferred frame, which is a stark violation of the principle of relativity.
Despite decades of searching, the strongest evidence for dark matter remains gravitational. It is thus worthwhile to consider the extent to which gravitational probes can discriminate between models of cold dark matter. With this in mind, in this talk I will discuss the early universe origins and late universe observables of "superfluid" dark matter. Despite having only gravitational couplings...
