Journal article
How order melts after quantum quenches
- Abstract:
- Injecting a sufficiently large energy density into an isolated many-particle system prepared in a state with long-range order will lead to the melting of the order over time. Detailed information about this process can be derived from the quantum mechanical probability distribution of the order parameter. We study this process for the paradigmatic case of the spin-1/2 Heisenberg XXZ chain. We determine the full quantum mechanical distribution function of the staggered subsystem magnetization as a function of time after a quantum quench from the classical Néel state. We establish the existence of an interesting regime at intermediate times that is characterized by a very broad probability distribution. Based on our findings we propose a simple general physical picture of how long-range order melts.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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(Preview, Version of record, pdf, 946.7KB, Terms of use)
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- Publisher copy:
- 10.1103/PhysRevB.101.041110
Authors
- Publisher:
- American Physical Society
- Journal:
- Physical Review B More from this journal
- Volume:
- 101
- Issue:
- 4
- Article number:
- 041110(R)
- Publication date:
- 2020-01-23
- Acceptance date:
- 2020-01-07
- DOI:
- EISSN:
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2469-9969
- ISSN:
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2469-9950
- Language:
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English
- Keywords:
- Pubs id:
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1071438
- Local pid:
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pubs:1071438
- Deposit date:
-
2020-03-19
- ARK identifier:
Terms of use
- Copyright holder:
- American Physical Society
- Copyright date:
- 2020
- Rights statement:
- © 2020 American Physical Society.
- Notes:
- This is the publisher's version of the article. The final version is available online from the American Physical Society at: https://doi.org/10.1103/PhysRevB.101.041110
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