Superconducting phase transitions in 2+1 dimensional quantum field theories modeling generalized polaronic interactions. Part I: Jahn-Teller inspired models

TL;DR

This paper reviews Jahn-Teller interactions and models a 2+1D gauge theory showing a second order phase transition to superconductivity, linking polaronic effects with quantum field theory.

Contribution

It introduces a gauge theory derived from Jahn-Teller models that predicts a new superconducting phase transition in 2+1 dimensions.

Findings

Gauge theory models Jahn-Teller interactions.

Second order phase transition to superconductivity.

Connection between polaronic effects and quantum field theory.

Abstract

We review the fundamentals of Jahn-Teller interactions and their field theoretical modelings and show that a 2+1 dimensional gauge theory where the gauge field couples to "flavored fermions" arises in a natural way from a two-band model describing the dynamical Jahn-Teller effect. The theory exhibits a second order phase transition to novel finite-temperature superconductivity.