Quantum Annealed Criticality
Strongly Correlated Electrons
2021-01-04 v1
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.
Cite
@article{arxiv.1805.11771,
title = {Quantum Annealed Criticality},
author = {Premala Chandra and Piers Coleman and Mucio A. Continentino and Gilbert G. Lonzarich},
journal= {arXiv preprint arXiv:1805.11771},
year = {2021}
}
Comments
14 pages: Main Text with 2 Figures + Supplementary Material