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arXiv · 1801.01995

Quantum Spin Superfluid from Bose-Einstein Condensation of Spinons in Pyrochlore Spin Ice

Imam Makhfudz
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Abstract

Quantum spin ice in pyrochlore lattice exemplifies three dimensional frustrated spin systems.In existing studies, Bose-Einstein condensation of bosonic spinons gives rise to magnetically ordered ground state.A truly liquid quantum spin superfluid state that manifests a deconfined Higgs condensate of spinons is demonstrated.This state is shown to occur in the fully antiferromagnetic case of the non-Kramers quantum spin ice with a fluctuations-induced first-order quantum phase transition from the $U(1)$ spin liquid to the spin superfluid.The spin superfluid density jump is obtained analytically.

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Imam Makhfudz. 2018-01-06. Quantum Spin Superfluid from Bose-Einstein Condensation of Spinons in Pyrochlore Spin Ice. https://doi.org/10.1209/0295-5075/123/67002

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