Quantum zero point electromagnetic energy difference between the superconducting and the normal phase in a HTc superconducting metal bulk sample

TL;DR

This paper introduces a new method to estimate the change in quantum vacuum electromagnetic energy density during the superconducting transition in a high-temperature superconductor, comparing contributions from different vacuum modes.

Contribution

It presents a novel approach combining macroscopic and microscopic models to evaluate the Casimir energy change in HTc superconductors during phase transition.

Findings

Quantifies the change in quantum vacuum energy between phases.

Highlights the role of TM and TE vacuum modes in the transition.

Provides a comparative analysis of contributions to Casimir energy.

Abstract

We provide a novel methodological approach to the estimate of the change of the Quantum Vacuum electromagnetic energy density in a High critical Temperature superconducting metal bulk sample, when it undergoes the transition in temperature, from the superconducting to the normal phase. The various contributions to the Casimir energy in the two phases are highlighted and compared. While the TM polarization of the vacuum mode allows for a macroscopic description of the superconducting transition, the changes in the TE vacuum mode induced by the superconductive correlations are introduced within a microscopic model, which does not explicitly take into account the anisotropic structure of the material.