We consider a Casimir cavity, one plate of which is a thin superconducting film.We show that when the cavity is cooled below the critical temperature for the onset of superconductivity, the sharp variation (in the far infrared) of the reflection coefficient of the film engenders a variation in the value of the Casimir energy. Even though the relative variation in the Casimir energy is very small, its magnitude can be comparable to the condensation energy of the superconducting film, and this gives rise to a number of testable effects, including a significant increase in the value of the critical magnetic field, required to destroy the superconductivity of the film. The theoretical ground is therefore prepared for the first experiment ever aimed at measuring variations of the Casimir energy itself.

Towards measuring variations of Casimir energy by a superconducting cavity / Bimonte, GIUSEPPE ROBERTO; Calloni, Enrico; Esposito, G.; Milano, Leopoldo; Rosa, Luigi. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - STAMPA. - 94:18(2005), pp. 180402-1-180402-4. [10.1103/PhysRevLett.94.180402]

Towards measuring variations of Casimir energy by a superconducting cavity

BIMONTE, GIUSEPPE ROBERTO;CALLONI, ENRICO;G. Esposito;MILANO, LEOPOLDO;ROSA, LUIGI
2005

Abstract

We consider a Casimir cavity, one plate of which is a thin superconducting film.We show that when the cavity is cooled below the critical temperature for the onset of superconductivity, the sharp variation (in the far infrared) of the reflection coefficient of the film engenders a variation in the value of the Casimir energy. Even though the relative variation in the Casimir energy is very small, its magnitude can be comparable to the condensation energy of the superconducting film, and this gives rise to a number of testable effects, including a significant increase in the value of the critical magnetic field, required to destroy the superconductivity of the film. The theoretical ground is therefore prepared for the first experiment ever aimed at measuring variations of the Casimir energy itself.
2005
Towards measuring variations of Casimir energy by a superconducting cavity / Bimonte, GIUSEPPE ROBERTO; Calloni, Enrico; Esposito, G.; Milano, Leopoldo; Rosa, Luigi. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - STAMPA. - 94:18(2005), pp. 180402-1-180402-4. [10.1103/PhysRevLett.94.180402]
File in questo prodotto:
File Dimensione Formato  
PhysRevLett.94.180402.pdf

non disponibili

Tipologia: Documento in Post-print
Licenza: Accesso privato/ristretto
Dimensione 93.75 kB
Formato Adobe PDF
93.75 kB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/324320
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 55
  • ???jsp.display-item.citation.isi??? 48
social impact