Work

Macroscopic Effects of Localized Measurements in Jammed States of Quantum Spin Chains

Year: 2022

Type: article

Abstract: A quantum jammed state can be seen as a state where the phase space available to particles shrinks to zero, an interpretation quite accurate in integrable systems, where stable quasiparticles scatter elastically. We consider the integrable dual folded XXZ model, which is equivalent to the XXZ model in the limit of large anisotropy. We perform a jamming-breaking localized measurement in a jammed state. We find that jamming is locally restored, but local observables exhibit nontrivial time evolution on macroscopic, ballistic scales, without ever relaxing back to their initial values.

Source: Physical Review Letters

DOI: 10.1103/physrevlett.128.130603

Authors: Kemal Bidzhiev, Maurizio Fagotti, Lenart Zadnik

Institutions: Centre National de la Recherche Scientifique, Université Paris-Saclay, Laboratoire de Physique Théorique et Modèles Statistiques

Language: English

Topic: Quantum many-body systems

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funder: H2020 European Research Council

Award: Local Control of Macroscopic Properties in Isolated Many-body Quantum Systems