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arXiv · 1805.11771

Quantum Annealed Criticality

Premala Chandra·Piers Coleman·Mucio A. Continentino·Gilbert G. Lonzarich
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Abstract

Experimentally there exist many materials with first-order phase transitions at finite temperature that display quantum criticality. Classically a strain-energy density coupling is known to drive first-order transitions in compressible systems, and here we generalize this Larkin-Pikin mechanism to the quantum case. We show that if the T=0 system lies above its upper critical dimension, the line of first-order transitions can end in a quantum annealed critical point where zero-point fluctuations restore the underlying criticality of the order parameter.

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Premala Chandra, Piers Coleman, Mucio A. Continentino, Gilbert G. Lonzarich. 2018-05-30. Quantum Annealed Criticality. https://doi.org/10.1103/physrevresearch.2.043440

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