Effect of long-range interactions on multipartite entanglement in Heisenberg chains
File(s)1809.02335v2.pdf (1.11 MB)
Accepted version
Author(s)
Singha Roy, Sudipto
Dhar, Himadri Shekhar
Type
Journal Article
Abstract
It is well known that the notions of spatial locality are often lost in quantum systems with long-range interactions, as exhibited by the emergence of phases with exotic long-range order and faster propagation of quantum correlations. We demonstrate here that such induced “quasinonlocal” effects do not necessarily translate to growth of global entanglement in the quantum system. By investigating the ground and quenched states of the variable-range, spin-1/2 Heisenberg Hamiltonian, we observe that the genuine multiparty entanglement in the system can either increase or counterintuitively diminish with a growing range of interactions. The behavior is reflective of the underlying phase structure of the quantum system and provides key insights for generation of multipartite entanglement in experimental atomic, molecular, and optical physics where such variable-range interactions have been implemented.
Date Issued
2019-06-17
Date Acceptance
2019-06-01
Citation
PHYSICAL REVIEW A, 2019, 99 (6), pp.062318-1-062318-8
ISSN
2469-9926
Publisher
AMER PHYSICAL SOC
Start Page
062318-1
End Page
062318-8
Journal / Book Title
PHYSICAL REVIEW A
Volume
99
Issue
6
Copyright Statement
©2019 American Physical Society.
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000471944200003&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Subjects
Science & Technology
Physical Sciences
Optics
Physics, Atomic, Molecular & Chemical
Physics
QUANTUM CRYPTOGRAPHY
PROPAGATION
SIMULATOR
PARTICLE
STATE
Publication Status
Published
Article Number
ARTN 062318
Date Publish Online
2019-06-17