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Universality in the relaxation of spin helices under XXZ spin-chain dynamics
ID
Popkov, Vladislav
(
Author
),
ID
Žnidarič, Marko
(
Author
),
ID
Zhang, Xin
(
Author
)
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MD5: 1F2A820C4B57A4A861A7246E1445525D
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https://journals.aps.org/prb/abstract/10.1103/PhysRevB.107.235408
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Abstract
We describe the dynamics of a transverse spin-helix state—a product state with spatially rotating magnetization—under XXZ spin chain evolution. Due to experimental relevance we especially focus on magnetization dynamics. At long times the U(1) symmetry of the Hamiltonian is restored, leading to the decay of transverse magnetization, which can be described as an exponential decay of a spatially harmonic profile. We show that the dependence of the short- and intermediate-time decay timescale, which in principle depends on all different parameters, like the wave vector of the initial helix, the anisotropy, etc., can be described well by a single scaling function. We also briefly discuss the evolution of magnetization current.
Language:
English
Keywords:
statistical physics
,
condensed matter physics
,
spin chains
Work type:
Article
Typology:
1.01 - Original Scientific Article
Organization:
FMF - Faculty of Mathematics and Physics
Publication version:
Author Accepted Manuscript
Publication date:
12.06.2023
Year:
2023
Number of pages:
Str. 235408-1-235408-14
Numbering:
Vol. 107, iss. 23
PID:
20.500.12556/RUL-155057
UDC:
536.93
ISSN on article:
2469-9950
DOI:
10.1103/PhysRevB.107.235408
COBISS.SI-ID:
188718851
Publication date in RUL:
18.03.2024
Views:
289
Downloads:
299
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Record is a part of a journal
Title:
Physical review
Publisher:
American Physical Society
ISSN:
2469-9950
COBISS.SI-ID:
2997348
Secondary language
Language:
Slovenian
Keywords:
statistična fizika
,
fizika kondenzirane snovi
,
spinske verige
Projects
Funder:
EC - European Commission
Funding programme:
H2020
Project number:
694544
Name:
Open Many-body Non-Equilibrium Systems
Acronym:
OMNES
Funder:
Other - Other funder or multiple funders
Funding programme:
Deutsche Forschungsgemeinschaft
Project number:
KL 645/20-2
Funder:
ARRS - Slovenian Research Agency
Project number:
P1-0402
Name:
Matematična fizika
Funder:
ARRS - Slovenian Research Agency
Project number:
J1-4385
Name:
Kvantna večdelčna fizika in nehermitskost
Funder:
Other - Other funder or multiple funders
Funding programme:
National Natural Science Foundation of China
Project number:
12204519
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