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Devil's staircases without particle-hole symmetry

Lan, Zhihao; Lesanovsky, Igor; Li, Weibin

Authors

Zhihao Lan

WEIBIN LI weibin.li@nottingham.ac.uk
Associate Professor



Abstract

We present and analyze spin models with long-range interactions whose ground state features a so-called devil’s staircase and where plateaus of the staircase are accessed by varying two-body interactions. This is in contrast to the canonical devil’s staircase, for example occurring in the one-dimensional Ising model with long-range interactions, where typically a single-body chemical potential is varied to scan through the plateaus. These systems, moreover, typically feature a particle-hole symmetry which trivially connects the hole part of the staircase (filling fraction f ≥ 1/2) to its particle part (f ≤ 1/2). Such symmetry is absent in our models and hence the particle sector and the hole sector can be separately controlled, resulting in exotic hybrid staircases.

Journal Article Type Article
Publication Date Feb 9, 2018
Journal Physical Review B
Print ISSN 2469-9950
Electronic ISSN 2469-9969
Publisher American Physical Society
Peer Reviewed Peer Reviewed
Volume 97
APA6 Citation Lan, Z., Lesanovsky, I., & Li, W. (2018). Devil's staircases without particle-hole symmetry. Physical Review B, 97, https://doi.org/10.1103/PhysRevB.97.075117
DOI https://doi.org/10.1103/PhysRevB.97.075117
Publisher URL https://journals.aps.org/prb/abstract/10.1103/PhysRevB.97.075117
Copyright Statement Copyright information regarding this work can be found at the following address: http://eprints.nottingh.../end_user_agreement.pdf

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Copyright Statement
Copyright information regarding this work can be found at the following address: http://eprints.nottingham.ac.uk/end_user_agreement.pdf





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