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 …
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 …
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 …
entropy via postselection. We expect this quantity to provide a new class of order parameters …
Generating random density matrices
K Życzkowski, KA Penson, I Nechita… - Journal of Mathematical …, 2011 - pubs.aip.org
We study various methods to generate ensembles of random density matrices of a fixed size
N, obtained by partial trace of pure states on composite systems. Structured ensembles of …
N, obtained by partial trace of pure states on composite systems. Structured ensembles of …
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 …
By'typical'values of entanglement, we refer here to values of entanglement quantifiers that …
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 …
measures of entanglement), for a random pure state in a large bipartite quantum system …
Diagonal quantum circuits: their computational power and applications
Y Nakata, M Murao - The European Physical Journal Plus, 2014 - Springer
Diagonal quantum circuits are quantum circuits comprising only diagonal gates in the
computational basis. In spite of a classical feature of diagonal quantum circuits in the sense …
computational basis. In spite of a classical feature of diagonal quantum circuits in the sense …
Entanglement distribution in the quantum symmetric simple exclusion process
D Bernard, L Piroli - Physical Review E, 2021 - APS
We study the probability distribution of entanglement in the quantum symmetric simple
exclusion process, a model of fermions hopping with random Brownian amplitudes between …
exclusion process, a model of fermions hopping with random Brownian amplitudes between …
How many eigenvalues of a Gaussian random matrix are positive?
SN Majumdar, C Nadal, A Scardicchio, P Vivo - Physical Review E—Statistical …, 2011 - APS
We study the probability distribution of the index N+, ie, the number of positive eigenvalues
of an N× N Gaussian random matrix. We show analytically that, for large N and large N+ with …
of an N× N Gaussian random matrix. We show analytically that, for large N and large N+ with …
Random pure states: Quantifying bipartite entanglement beyond the linear statistics
P Vivo, MP Pato, G Oshanin - Physical Review E, 2016 - APS
We analyze the properties of entangled random pure states of a quantum system partitioned
into two smaller subsystems of dimensions N and M. Framing the problem in terms of …
into two smaller subsystems of dimensions N and M. Framing the problem in terms of …