Family of Exactly Solvable Models with an Ultimate Quantum Paramagnetic Ground State

Schmidt KP, Laad M (2010)

Publication Status: Published

Publication Type: Journal article

Publication year: 2010

Journal

Physical Review Letters American Physical Society

Publisher: AMER PHYSICAL SOC

Book Volume: 104

Journal Issue: 23

DOI: 10.1103/PhysRevLett.104.237201

Abstract

We present a family of two-dimensional frustrated quantum magnets solely based on pure nearest-neighbor Heisenberg interactions which can be solved quasiexactly. All lattices are constructed in terms of frustrated quantum cages containing a chiral degree of freedom protected by frustration. The ground states of these models are dubbed ultimate quantum paramagnets and exhibit an extensive entropy at zero temperature. We discuss the unusual and extensively degenerate excitations in such phases. Implications for thermodynamic properties as well as for decoherence free quantum computation are discussed.

Authors with CRIS profile

Kai Phillip Schmidt Professur für Theoretische Physik

Involved external institutions

Technische Universität Dortmund DE Germany (DE)

How to cite

APA:

Schmidt, K.P., & Laad, M. (2010). Family of Exactly Solvable Models with an Ultimate Quantum Paramagnetic Ground State. Physical Review Letters, 104(23). https://doi.org/10.1103/PhysRevLett.104.237201

MLA:

Schmidt, Kai Phillip, and Mukul Laad. "Family of Exactly Solvable Models with an Ultimate Quantum Paramagnetic Ground State." Physical Review Letters 104.23 (2010).

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