Journal article
Anomalous spin-charge separation in a driven Hubbard system
- Abstract:
- Spin-charge separation (SCS) is a striking manifestation of strong correlations in low-dimensional quantum systems, whereby a fermion splits into separate spin and charge excitations that travel at different speeds. Here, we demonstrate that periodic driving enables control over SCS in a Hubbard system near half filling. In one dimension, we predict analytically an exotic regime where charge travels slower than spin and can even become “frozen,” in agreement with numerical calculations. In two dimensions, the driving slows both charge and spin and leads to complex interferences between single-particle and pair-hopping processes.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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(Preview, Version of record, 1.0MB, Terms of use)
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- Publisher copy:
- 10.1103/PhysRevLett.125.195301
Authors
+ Engineering and Physical Sciences Research Council
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- Grant:
- EP/M013243/1
- EP/P01058X/1 RF040529
- EP/P009565/1
- EP/K038311/1
- Publisher:
- American Physical Society
- Journal:
- Physical Review Letters More from this journal
- Volume:
- 125
- Issue:
- 19
- Article number:
- 195301
- Publication date:
- 2020-11-02
- Acceptance date:
- 2020-10-06
- DOI:
- EISSN:
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1079-7114
- ISSN:
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0031-9007
- Language:
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English
- Keywords:
- Pubs id:
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1138816
- Local pid:
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pubs:1138816
- Deposit date:
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2020-10-21
Terms of use
- Copyright holder:
- American Physical Society
- Copyright date:
- 2020
- Rights statement:
- © 2020 American Physical Society
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