Exact spontaneous plaquette ground states for high-spin ladder models
Journal Article
·
· Physical Review B
OSTI ID:973056
We study the exchange physics in high-spin Mott insulating systems with S=3/2 which is realizable in ultracold atomic systems. The high symmetry of SO(5) or SU(4) therein renders stronger quantum fluctuations than the usual spin-1/2 systems. A spontaneous plaquette ground state without any site and bond spin orders is rigorously proved in a ladder spin-3/2 model, whose topological excitations exhibit fractionalization behavior. The generalization to the SU(N) plaquette state is also investigated.
- Research Organization:
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC02-76SF00515
- OSTI ID:
- 973056
- Report Number(s):
- SLAC-REPRINT-2010-052; TRN: US1001694
- Journal Information:
- Physical Review B, Vol. 72, Issue 21; ISSN 1098-0121
- Country of Publication:
- United States
- Language:
- English
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