Measurement-induced entanglement phase transition on a superconducting quantum processor with mid-circuit readout

JM Koh, SN Sun, M Motta, AJ Minnich - Nature Physics, 2023 - nature.com
Quantum many-body systems subjected to unitary evolution with the addition of interspersed
measurements exhibit a variety of dynamical phases that do not occur under pure unitary …

Measurement-induced entanglement and teleportation on a noisy quantum processor

Nature, 2023 - nature.com
Measurement has a special role in quantum theory: by collapsing the wavefunction, it can
enable phenomena such as teleportation and thereby alter the 'arrow of time'that constrains …

Probing postmeasurement entanglement without postselection

SJ Garratt, E Altman - PRX Quantum, 2024 - APS
We study the problem of observing quantum collective phenomena emerging from large
numbers of measurements. These phenomena are difficult to observe in conventional …

Universality in driven open quantum matter

LM Sieberer, M Buchhold, J Marino, S Diehl - arXiv preprint arXiv …, 2023 - arxiv.org
Universality is a powerful concept, which enables making qualitative and quantitative
predictions in systems with extensively many degrees of freedom. It finds realizations in …

Scrambling transition in a radiative random unitary circuit

Z Weinstein, SP Kelly, J Marino, E Altman - Physical Review Letters, 2023 - APS
We study quantum information scrambling in a random unitary circuit that exchanges qubits
with an environment at a rate p. As a result, initially localized quantum information not only …

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 …

Learnability transitions in monitored quantum dynamics via eavesdropper's classical shadows

M Ippoliti, V Khemani - PRX Quantum, 2024 - APS
Monitored quantum dynamics—unitary evolution interspersed with measurements—has
recently emerged as a rich domain for phase structure in quantum many-body systems away …

Quantum criticality under imperfect teleportation

P Sala, S Murciano, Y Liu, J Alicea - PRX Quantum, 2024 - APS
Entanglement, measurement, and classical communication together enable teleportation of
quantum states between distant parties, in principle, with perfect fidelity. To what extent do …

Entanglement and absorbing-state transitions in interactive quantum dynamics

N O'Dea, A Morningstar, S Gopalakrishnan, V Khemani - Physical Review B, 2024 - APS
Nascent quantum computers motivate the exploration of quantum many-body systems in
nontraditional scenarios. For example, it has become natural to explore the dynamics of …

Entanglement Phase Transition Due to Reciprocity Breaking without Measurement or Postselection

G Lee, T Jin, YX Wang, A McDonald, A Clerk - PRX Quantum, 2024 - APS
Despite its fully unitary dynamics, the bosonic Kitaev chain (BKC) displays key hallmarks of
non-Hermitian physics, including nonreciprocal transport and the non-Hermitian skin effect …