Random quantum circuits

MPA Fisher, V Khemani, A Nahum… - Annual Review of …, 2023 - annualreviews.org
Quantum circuits—built from local unitary gates and local measurements—are a new
playground for quantum many-body physics and a tractable setting to explore universal …

Symmetry restoration and quantum Mpemba effect in symmetric random circuits

S Liu, HK Zhang, S Yin, SX Zhang - Physical Review Letters, 2024 - APS
Entanglement asymmetry, which serves as a diagnostic tool for symmetry breaking and a
proxy for thermalization, has recently been proposed and studied in the context of symmetry …

Theory of free fermions under random projective measurements

I Poboiko, P Pöpperl, IV Gornyi, AD Mirlin - Physical Review X, 2023 - APS
We develop an analytical approach to the study of one-dimensional free fermions subject to
random projective measurements of local site occupation numbers, based on the Keldysh …

Entanglement transitions from stochastic resetting of non-Hermitian quasiparticles

X Turkeshi, M Dalmonte, R Fazio, M Schirò - Physical Review B, 2022 - APS
We put forward a phenomenological theory for entanglement dynamics in monitored
quantum many-body systems with well-defined quasiparticles. Within this theory …

Controlling entanglement at absorbing state phase transitions in random circuits

P Sierant, X Turkeshi - Physical Review Letters, 2023 - APS
Many-body unitary dynamics interspersed with repeated measurements display a rich
phenomenology hallmarked by measurement-induced phase transitions. Employing …

Volume-to-area law entanglement transition in a non-Hermitian free fermionic chain

Y Le Gal, X Turkeshi, M Schirò - SciPost Physics, 2023 - scipost.org
We consider the dynamics of the non-Hermitian Su-Schrieffer-Heeger model arising as the
no-click limit of a continuously monitored free fermion chain where particles and holes are …

Cross entropy benchmark for measurement-induced phase transitions

Y Li, Y Zou, P Glorioso, E Altman, MPA Fisher - Physical Review Letters, 2023 - APS
We investigate prospects of employing the linear cross entropy to experimentally access
measurement-induced phase transitions without requiring any postselection of quantum …

Dynamical Magic Transitions in Monitored Clifford+ Circuits

M Bejan, C McLauchlan, B Béri - PRX Quantum, 2024 - APS
The classical simulation of highly entangling quantum dynamics is conjectured to be
generically hard. Thus, recently discovered measurement-induced transitions between …

Measurement-induced phase transitions in -dimensional stabilizer circuits

P Sierant, M Schirò, M Lewenstein, X Turkeshi - Physical Review B, 2022 - APS
The interplay between unitary dynamics and local quantum measurements results in
unconventional nonunitary dynamical phases and transitions. In this paper we investigate …

Phase transition in magic with random quantum circuits

P Niroula, CD White, Q Wang, S Johri, D Zhu… - Nature physics, 2024 - nature.com
Magic is a property of quantum states that enables universal fault-tolerant quantum
computing using simple sets of gate operations. Understanding the mechanisms by which …