This tutorial article introduces the physics of quantum information scrambling in quantum many-body systems. The goals are to understand how to precisely quantify the spreading of …
We describe the large-N saddle point, and the structure of fluctuations about the saddle point, of a theory containing a sharp, critical Fermi surface in two spatial dimensions. The …
The spreading of quantum information in closed systems, often termed scrambling, is a hallmark of many-body quantum dynamics. In open systems, scrambling competes with …
The Hungarian physicist Eugene Wigner introduced random matrix models in physics to describe the energy spectra of atomic nuclei. As such, the main goal of random matrix theory …
By leveraging shared entanglement between a pair of qubits, one can teleport a quantum state from one particle to another. Recent advances have uncovered an intrinsically many …
We study the out-of-equilibrium dynamics of a Sachdev-Ye-Kitaev (SYK) model, N fermions with aq-body interaction of infinite range, coupled to a Markovian environment. Close to the …
The concept of “deep thermalization” has recently been introduced to characterize moments of an ensemble of pure states, resulting from projective measurements on a subsystem …
K Richter, JD Urbina, S Tomsovic - Journal of Physics A …, 2022 - iopscience.iop.org
Quantum chaos of many-body (MB) systems has been swiftly developing into a vibrant research area at the interface between various disciplines, ranging from statistical physics to …
S Xu, L Susskind, Y Su, B Swingle - arXiv preprint arXiv:2008.02303, 2020 - arxiv.org
We study a sparse version of the Sachdev-Ye-Kitaev (SYK) model defined on random hypergraphs constructed either by a random pruning procedure or by randomly sampling …