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Kaleidoscope of Exotic Quantum Phases in a Frustrated XY Model

Christopher N. Varney, Kai Sun, Victor Galitski, and Marcos Rigol
Phys. Rev. Lett. 107, 077201 – Published 8 August 2011; Erratum Phys. Rev. Lett. 107, 089902 (2011)
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Abstract

The existence of quantum spin liquids was first conjectured by Pomeranchuk some 70 years ago, who argued that frustration in simple antiferromagnetic theories could result in a Fermi-liquid-like state for spinon excitations. Here we show that a simple quantum spin model on a honeycomb lattice hosts the long sought for Bose metal with a clearly identifiable Bose surface. The complete phase diagram of the model is determined via exact diagonalization and is shown to include four distinct phases separated by three quantum phase transitions.

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  • Received 19 May 2011
  • Publisher error corrected 10 August 2011

DOI:https://doi.org/10.1103/PhysRevLett.107.077201

© 2011 American Physical Society

Corrections

10 August 2011

Erratum

Publisher’s Note: Kaleidoscope of Exotic Quantum Phases in a Frustrated XY Model [Phys. Rev. Lett. 107, 077201 (2011)]

Christopher N. Varney, Kai Sun, Victor Galitski, and Marcos Rigol
Phys. Rev. Lett. 107, 089902 (2011)

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Quantum liquids move to a higher dimension

Published 8 August 2011

A spin model on a honeycomb lattice points to a much sought after type of quantum spin liquid: the Bose metal.

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Authors & Affiliations

Christopher N. Varney1,2, Kai Sun1,3, Victor Galitski1,3, and Marcos Rigol2

  • 1Joint Quantum Institute and Department of Physics, University of Maryland, College Park, Maryland 20742, USA
  • 2Department of Physics, Georgetown University, Washington, D.C. 20057, USA
  • 3Condensed Matter Theory Center, Department of Physics, University of Maryland, College Park, Maryland 20742, USA

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Issue

Vol. 107, Iss. 7 — 12 August 2011

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