First principles theory of fluctuations in vortex liquids and solids
Baruch Rosenstein (National Center for Theoretical Studies and, Electrophysics Department, National Chiao Tung University, Hsinchu, Taiwan,, R.O.C)
TL;DR
This paper develops a low-temperature perturbation theory for vortex liquids and solids in type II superconductors, providing a complementary approach to high-temperature expansions and aligning well with simulations and experiments.
Contribution
It introduces a consistent low-temperature perturbation framework for thermodynamics in vortex phases, extending the theoretical understanding beyond high-temperature limits.
Findings
Magnetization and specific heat calculated to two-loop order.
Results compare well with Monte Carlo simulations.
Provides a new theoretical tool for low-temperature vortex analysis.
Abstract
Consistent perturbation theory for thermodynamical quantities in type II superconductors in magnetic field at low temperatures is developed. It is complementary to the existing expansion valid at high temperatures. Magnetization and specific heat are calculated to two loop order and compare well to existing Monte Carlo simulations and experiments.
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