Control of entanglement transitions in quantum spin clusters

Irons, Hannah R. and Quintanilla, Jorge and Perring, Toby G. and Amico, Luigi and Aeppli, Gabriel (2017) Control of entanglement transitions in quantum spin clusters. Physical Review B: Condensed Matter and Materials Physics, 96 (22). p. 224408. ISSN 0163-1829. (doi:https://doi.org/10.1103/PhysRevB.96.224408) (Full text available)

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http://dx.doi.org/10.1103/PhysRevB.96.224408

Abstract

Quantum spin clusters provide a new platform for the experimental study of many-body entanglement. Here we address a simple model of a single-molecule nano-magnet featuring N interacting spins in a transverse field. The field can control an entanglement transition (ET). We calculate the magnetisation, low-energy gap and neutron-scattering cross-section and find that the ET has distinct signatures, detectable at temperatures as high as 5% of the interaction strength. The signatures are stronger for smaller clusters.

Item Type: Article
Additional information: This manuscript is the version accepted for publication.
Uncontrolled keywords: quantum entanglement, quantum critical point, quantum phase transition, clustered quantum materials, molecular nanomagnets, quantum magnets, neutron scattering, magnetisation, quantum information
Subjects: Q Science > QC Physics > QC173.45 Condensed Matter
Q Science > QC Physics > QC176 Solid state physics
Q Science > QC Physics
Q Science > QC Physics > QC174.12 Quantum theory
Q Science > QC Physics > QC176.8.N35 Nanoscience, nanotechnology
Divisions: Faculties > Sciences > School of Physical Sciences
Faculties > Sciences > School of Physical Sciences > Functional Materials Group
Depositing User: Jorge Quintanilla
Date Deposited: 02 May 2017 15:44 UTC
Last Modified: 20 Nov 2018 11:37 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/61595 (The current URI for this page, for reference purposes)
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