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 …

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 …

Purification timescales in monitored fermions

H Lóio, A De Luca, J De Nardis, X Turkeshi - Physical Review B, 2023 - APS
We investigate the crucial role played by a global symmetry in the purification timescales
and the phase transitions of monitored free fermionic systems separating a mixed and a …

Triviality of quantum trajectories close to a directed percolation transition

L Piroli, Y Li, R Vasseur, A Nahum - Physical Review B, 2023 - APS
We study quantum circuits consisting of unitary gates, projective measurements, and control
operations that steer the system toward a pure absorbing state. Two types of phase …

Coherence requirements for quantum communication from hybrid circuit dynamics

SP Kelly, U Poschinger, F Schmidt-Kaler, M Fisher… - SciPost Physics, 2023 - scipost.org
The coherent superposition of quantum states is an important resource for quantum
information processing which distinguishes quantum dynamics and information from their …

Entanglement transitions in unitary circuit games

R Morral-Yepes, A Smith, SL Sondhi, F Pollmann - PRX Quantum, 2024 - APS
Repeated projective measurements in unitary circuits can lead to an entanglement phase
transition as the measurement rate is tuned. In this work, we consider a different setting in …

Scrambling in quantum cellular automata

B Kent, S Racz, S Shashi - Physical Review B, 2023 - APS
Scrambling is the delocalization of quantum information over a many-body system and
underlies all quantum-chaotic dynamics. We employ discrete quantum cellular automata as …

Generalizing measurement-induced phase transitions to information exchange symmetry breaking

SP Kelly, J Marino - arxiv preprint arxiv:2402.13271, 2024 - arxiv.org
In this work we investigate the conditions for quantum back action to result in a phase
transition in the information dynamics of a monitored system. We introduce a framework that …

Bipartite mutual information in classical many-body dynamics

A Pizzi, NY Yao - Physical Review B, 2024 - APS
Information theoretic measures have helped to sharpen our understanding of many-body
quantum states. As perhaps the most well-known example, the entanglement entropy (or …

Prethermalization in periodically driven nonreciprocal many-body spin systems

AJ McRoberts, H Zhao, R Moessner, M Bukov - Physical Review Research, 2023 - APS
We analyze a new class of time-periodic nonreciprocal dynamics in interacting chaotic
classical spin systems, whose equations of motion are conservative (phase-space-volume …