Spin-Liquid Condensate of Spinful Bosons

2014/01/31 by Biao Lian, Shou-Cheng Zhang, Shoucheng Zhang
Physics and Astronomy · #Advanced Condensed Matter Physics #Boson #Charge (physics) #Cold Atom Physics and Bose-Einstein Condensates #Condensed matter physics #Electron #Phase (matter) #Phase diagram #Physics #Physics of Superconductivity and Magnetism #Quantum mechanics #Quantum spin liquid #Spin (aerodynamics) #Spin polarization #Valence bond theory #cond-mat.quant-gas #cond-mat.str-el

paper · pdf · doi:10.1103/physrevlett.113.080402

published as Phys. Rev. Lett. 113, 080402 (2014) · 5+7 pages, 3+1 figures

openalex publication_date 2014/08/20 · arxiv created 2014/08/21 · arxiv updated 2014/08/27 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06

Abstract

We introduce the concept of a bosonic spin liquid condensate (SLC), where spinful bosons in a lattice form a zero-temperature spin disordered charge condensate that preserves the spin rotation symmetry, but breaks the U(1) symmetry due to a spinless order parameter with charge one. It has an energy gap to all the spin excitations. We show that such SLC states can be realized in a system of spin S ≥ 2 bosons. In particular, we analyze the SLC phase diagram in the spin 2 case using a mean-field variational wave function method. We show there is a direct analogy between the SLC and the resonating-valence-bond state.

Citations

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