Fate of the Higgs mode near quantum criticality

Snir Gazit*, Daniel Podolsky, Assa Auerbach

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

67 Scopus citations

Abstract

We study a relativistic O(N) model near the quantum critical point in 2+1 dimensions for N=2 and N=3. The scalar susceptibility is evaluated by Monte Carlo simulation. We show that the spectrum contains a well-defined peak associated with the Higgs mode arbitrarily close to the critical point. The peak fidelity and the amplitude ratio between the critical energy scales on both sides of the transition are determined.

Original languageAmerican English
Article number140401
JournalPhysical Review Letters
Volume110
Issue number14
DOIs
StatePublished - 2 Apr 2013
Externally publishedYes

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