Finite temperature crossovers near quantum tricritical points in metals
P. Jakubczyk, J. Bauer, W. Metzner
TL;DR
This paper develops a renormalization group approach to study finite temperature crossovers near quantum tricritical points in metals, providing insights into phase boundaries and critical behavior.
Contribution
It introduces a functional renormalization group framework to analyze quantum tricriticality and finite temperature crossovers in metallic systems.
Findings
Calculated correlation length in quantum critical regions
Mapped finite temperature phase boundaries
Analyzed crossover behavior between quantum criticality and tricriticality
Abstract
We present a renormalization group treatment of quantum tricriticality in metals. Applying a set of flow equations derived within the functional renormalization group framework we evaluate the correlation length in the quantum critical region of the phase diagram, extending into finite temperatures above the quantum critical or tricritical point. We calculate the finite temperature phase boundaries and analyze the crossover behavior when the system is tuned between quantum criticality and quantum tricriticality.
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