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Exotic criticality in the dimerized spin-1 $XXZ$ chain with single-ion anisotropy

Abstract:

We consider the dimerized spin-1 X X Z chain with single-ion anisotropy D . In absence of an explicit dimerization there are three phases: a large- D , an antiferromagnetically ordered and a Haldane phase. This phase structure persists up to a critical dimerization, above which the Haldane phase disappears. We show that for weak dimerization the phases are separated by Gaussian and Ising quantum phase transitions. One of the Ising transitions terminates in a critical point in the universal...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.21468/scipostphys.5.6.059

Authors


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Role:
Author
ORCID:
0000-0001-5331-9961
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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Theoretical Physics
Role:
Author
ORCID:
0000-0002-1127-5830
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Funding agency for:
Essler, F
Grant:
PHY-1748958
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Funding agency for:
Essler, F
Grant:
PHY-1748958
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Funding agency for:
Ohta, Y
Grant:
17K05530
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Funding agency for:
Lange, F
Grant:
FE 398/8-1
Publisher:
SciPost Publisher's website
Journal:
SciPost Physics Journal website
Volume:
5
Issue:
6
Article number:
059
Publication date:
2018-12-07
Acceptance date:
2018-12-03
DOI:
EISSN:
2542-4653
Source identifiers:
953034
Pubs id:
pubs:953034
UUID:
uuid:e5ff8e41-7354-4bfe-855b-f14311db7d02
Local pid:
pubs:953034
Deposit date:
2018-12-17

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