Test of the Equivalence Principle for Superconductors

Test of the Equivalence Principle for Superconductors

We searched for violations of the weak equivalence principle using a cryogenic torsion balance with a pendulum comprised of superconducting niobium and copper. We constrain the E\"otv\"os parameter with 95%-confidence to \(\eta_{\text{Nb*-Cu}}~\leq~2.0\times10^{-9}\) and \(\eta_{\text{CP-e...

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Veröffentlicht in:arXiv.org 2024-08
Hauptverfasser: Ross, M P, Fleischer, S M, Paulson, I A, Lamb, P, Iritani, B M, Adelberger, E G, Hagedorn, C A, Venkateswara, K, Gettings, C, Shaw, E A, Apple, S K, Gundlach, J H
Format: Artikel
Sprache:eng
Schlagworte:
Balances (scales)
Cooper pairs
Copper
Equivalence principle
Niobium
Superconductivity
Superconductors
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Zusammenfassung:We searched for violations of the weak equivalence principle using a cryogenic torsion balance with a pendulum comprised of superconducting niobium and copper. We constrain the E\"otv\"os parameter with 95%-confidence to \(\eta_{\text{Nb*-Cu}}~\leq~2.0\times10^{-9}\) and \(\eta_{\text{CP-ee}}\leq9.2\times10^{-4}\) for superconducting niobium and Cooper pairs, respectively.
ISSN:2331-8422