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Quantum phase transitions in antiferromagnets and superfluids

Subir Sachdev·Matthias Vojta
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Abstract

We present a general introduction to the non-zero temperature dynamic and transport properties of low-dimensional systems near a quantum phase transition. Basic results are reviewed in the context of experiments on the spin-ladder compounds, insulating two-dimensional antiferromagnets, and double-layer quantum Hall systems. Recent large N computations on an extended t-J model (cond-mat/9906104) motivate a global scenario of the quantum phases and transitions in the high temperature superconductors, and connections are made to numerous experiments.

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Subir Sachdev, Matthias Vojta. 1999-07-31. Quantum phase transitions in antiferromagnets and superfluids. https://doi.org/10.1016/s0921-4526(99)01726-3

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