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 …

Symmetry-Enforced Entanglement in Maximally Mixed States

A Moharramipour, LA Lessa, C Wang, TH Hsieh… - PRX Quantum, 2024 - APS
Entanglement in quantum many-body systems is typically fragile to interactions with the
environment. Generic unital quantum channels, for example, have the maximally mixed state …

Critical phase and spin sharpening in SU (2)-symmetric monitored quantum circuits

S Majidy, U Agrawal, S Gopalakrishnan, AC Potter… - Physical Review B, 2023 - APS
Monitored quantum circuits exhibit entanglement transitions at certain measurement rates.
Such a transition separates phases characterized by how much information an observer can …

Properties and Applications of the Kirkwood-Dirac Distribution

DRM Arvidsson-Shukur, WF Braasch Jr… - arxiv preprint arxiv …, 2024 - arxiv.org
The most famous quasi-probability distribution, the Wigner function, has played a pivotal role
in the development of a continuous-variable quantum theory that has clear analogues of …

Non-Abelian transport distinguishes three usually equivalent notions of entropy production

T Upadhyaya, WF Braasch Jr, GT Landi, NY Halpern - PRX Quantum, 2024 - APS
We extend entropy production to a deeply quantum regime involving noncommuting
conserved quantities. Consider a unitary transporting conserved quantities (“charges”) …

Estimation of Hamiltonian parameters from thermal states

LP García-Pintos, K Bharti, J Bringewatt, H Dehghani… - Physical Review Letters, 2024 - APS
We upper bound and lower bound the optimal precision with which one can estimate an
unknown Hamiltonian parameter via measurements of Gibbs thermal states with a known …

Thermodynamic approach to quantifying incompatible instruments

CY Hsieh, SL Chen - Physical Review Letters, 2024 - APS
We consider a thermodynamic framework to quantify instrument incompatibility via a
resource theory subject to thermodynamic constraints. We use the minimal thermalization …

Noncommuting charges can remove non-stationary quantum many-body dynamics

S Majidy - Nature Communications, 2024 - nature.com
Studying noncommuting conserved quantities, or 'charges,'has revealed a conceptual
puzzle: noncommuting charges hinder thermalization in some ways yet promote it in others …

Addressing misconceptions in university physics: A review and experiences from quantum physics educators

S Majidy - arxiv preprint arxiv:2405.20923, 2024 - arxiv.org
Students often enter physics classrooms with deeply ingrained misconceptions stemming
from everyday experiences. These misconceptions challenge educators, as students often …

Deep thermalization under charge-conserving quantum dynamics

RA Chang, H Shrotriya, WW Ho, M Ippoliti - arxiv preprint arxiv …, 2024 - arxiv.org
``Deep thermalization''describes the emergence of universal wavefunction distributions in
quantum many-body dynamics, appearing on a local subsystem upon measurement of its …