Quantum zero point electromagnetic energy difference between the superconducting and the normal phase in a high-Tc superconducting metal bulk sample
Annalisa Allocca, Saverio Avino, Sergio Balestrieri, Enrico Calloni, Sergio Caprara, Massimo Carpinelli, Luca D'Onofrio, Domenico D'Urso, Rosario De Rosa, Luciano Errico, Gianluca Gagliardi, Marco Grilli, Valentina Mangano, Maria Marsella, Luca Naticchioni, Antonio Pasqualetti, Giovanni Piero Pepe, Maurizio Perciballi, Luca Pesenti, Paola Puppo, Piero Rapagnani, Fulvio Ricci, Luigi Rosa, Carlo Rovelli, Davide Rozza, Paolo Ruggi, Naurang Saini, Valeria Sequino, Valeria Sipala, Daniela Stornaiuolo, Francesco Tafuri, Arturo Tagliacozzo, Iara Tosta e Melo, Lucia Trozzo
DOI 10.1103/PhysRevB.106.134502 · Physical Review B
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Abstract
We provide a 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 transverse magnetic polarization of the vacuum mode allows for a macroscopic description of the superconducting transition, the changes in the transverse electric 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.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YBa2Cu3O7-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
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