Random matrix techniques in quantum information theory

B Collins, I Nechita - Journal of Mathematical Physics, 2016 - pubs.aip.org
The purpose of this review is to present some of the latest developments using random
techniques, and in particular, random matrix techniques in quantum information theory. Our …

Collision models in open system dynamics: A versatile tool for deeper insights?

S Campbell, B Vacchini - Europhysics Letters, 2021 - iopscience.iop.org
Understanding and simulating how a quantum system interacts and exchanges information
or energy with its surroundings is a ubiquitous problem, one which must be carefully …

Symmetry-resolved Page curves

S Murciano, P Calabrese, L Piroli - Physical Review D, 2022 - APS
Given a statistical ensemble of quantum states, the corresponding Page curve quantifies the
average entanglement entropy associated with each possible spatial bipartition of the …

Top eigenvalue of a random matrix: large deviations and third order phase transition

SN Majumdar, G Schehr - Journal of Statistical Mechanics …, 2014 - iopscience.iop.org
We study the fluctuations of the largest eigenvalue λ max of N× N random matrices in the
limit of large N. The main focus is on Gaussian β ensembles, including in particular the …

New holographic generalization of entanglement entropy

Y Nakata, T Takayanagi, Y Taki, K Tamaoka, Z Wei - Physical Review D, 2021 - APS
We introduce a new quantity, called pseudo-entropy, as a generalization of entanglement
entropy via postselection. We expect this quantity to provide a new class of order parameters …

Entanglement typicality

OCO Dahlsten, C Lupo, S Mancini… - Journal of Physics A …, 2014 - iopscience.iop.org
We provide a summary of both seminal and recent results on typical entanglement.
By'typical'values of entanglement, we refer here to values of entanglement quantifiers that …

Fastest local entanglement scrambler, multistage thermalization, and a non-Hermitian phantom

J Bensa, M Žnidarič - Physical Review X, 2021 - APS
We study random quantum circuits and their rate of producing bipartite entanglement,
specifically with respect to the choice of 2-qubit gates and the order (protocol) in which these …

Statistical distribution of quantum entanglement for a random bipartite state

C Nadal, SN Majumdar, M Vergassola - Journal of Statistical Physics, 2011 - Springer
We compute analytically the statistics of the Renyi and von Neumann entropies (standard
measures of entanglement), for a random pure state in a large bipartite quantum system …

Generating entanglement by quantum resetting

M Kulkarni, SN Majumdar - Physical Review A, 2023 - APS
We consider a closed quantum system subjected to stochastic Poissonian resetting with rate
r to its initial state. Resetting drives the system to a nonequilibrium stationary state (NESS) …

Phase transitions in the distribution of bipartite entanglement of a random pure state

C Nadal, SN Majumdar, M Vergassola - Physical review letters, 2010 - APS
Using a Coulomb gas method, we compute analytically the probability distribution of the
Renyi en<? format?> tropies (a standard measure of entanglement) for a random pure state …