Motivated by holographic complexity proposals as novel probes of black hole spacetimes, we explore circuit complexity for thermofield double (TFD) states in free scalar quantum field …
The spreading of entanglement in out-of-equilibrium quantum systems is currently at the center of intense interdisciplinary research efforts involving communities with interests …
The time evolution of the entanglement entropy in non-equilibrium quantum systems provides crucial information about the structure of the time-dependent state. For quantum …
It is widely recognized that entanglement generation and dynamical chaos are intimately related in semiclassical models via the process of decoherence. In this paper, we propose a …
We present a systematic geometric framework to study closed quantum systems based on suitably chosen variational families. For the purpose of (A) real time evolution,(B) excitation …
P Calabrese - SciPost Physics Lecture Notes, 2020 - scipost.org
These are lecture notes for a short course given at the Les Houches Summer School on``Integrability in Atomic and Condensed Matter Physics'', in summer 2018. Here, I …
We show that bosonic and fermionic Gaussian states (also known as" squeezed coherent states") can be uniquely characterized by their linear complex structure $ J $ which is a …
The quantum dynamics of spin systems with uniform all-to-all interaction are often studied in the totally symmetric space (TSS) of maximal total spin. However, the TSS states are atypical …
Long-range interactions allow far-distance quantum correlations to build up very fast. Nevertheless, numerical simulations demonstrated a dramatic slowdown of entanglement …