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Nonequilibrium spin transport in integrable spin chains: Persistent currents and emergence of magnetic domains

Abstract:

We construct exact steady states of unitary nonequilibrium time evolution in the gapless XXZ spin-1/2 chain where integrability preserves ballistic spin transport at long times. We characterize the quasilocal conserved quantities responsible for this feature and introduce a computationally effective way to evaluate their expectation values on generic matrix product initial states. We employ this approach to reproduce the long-time limit of local observables in all quantum quenches which expli...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1103/PhysRevB.96.020403

Authors


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Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics; Theoretical Physics
Department:
THEORETICAL PHYSICS
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics; Theoretical Physics
Role:
Author
More from this funder
Funding agency for:
De Luca, A
Grant:
QuantumMatterin
outofEquilibriumEP/N01930X/1
More from this funder
Funding agency for:
Collura, M
Grant:
Marie Sklodowska-Curie Grant Agreement No. 701221
Publisher:
American Physical Society Publisher's website
Journal:
Physical Review B Journal website
Volume:
96
Issue:
2
Article number:
020403(R)
Publication date:
2017-07-06
DOI:
EISSN:
2469-9969
ISSN:
2469-9950
Source identifiers:
715976
Pubs id:
pubs:715976
UUID:
uuid:0800fc4d-abf2-4ede-81f0-cca5f9a49a67
Local pid:
pubs:715976
Deposit date:
2018-04-10

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