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 …

Measurement and feedback driven entanglement transition in the probabilistic control of chaos

T Iadecola, S Ganeshan, JH Pixley, JH Wilson - Physical review letters, 2023 - APS
We uncover a dynamical entanglement transition in a monitored quantum system that is
heralded by a local order parameter. Classically, chaotic systems can be stochastically …

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 …

Detecting and stabilizing measurement-induced symmetry-protected topological phases in generalized cluster models

R Morral-Yepes, F Pollmann, I Lovas - Physical Review B, 2023 - APS
We study measurement-induced symmetry-protected topological (SPT) order in a wide class
of quantum random circuit models by combining calculations within the stabilizer formalism …

Kardar-Parisi-Zhang physics and phase transition in a classical single random walker under continuous measurement

T Jin, DG Martin - Physical Review Letters, 2022 - APS
We introduce and study a new model consisting of a single classical random walker
undergoing continuous monitoring at rate γ on a discrete lattice. Although such a continuous …

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 …

Bridging the gap between classical and quantum many-body information dynamics

A Pizzi, D Malz, A Nunnenkamp, J Knolle - Physical Review B, 2022 - APS
The fundamental question of how information spreads in closed quantum many-body
systems is often addressed through the lens of the bipartite entanglement entropy, a quantity …