Quantum Weak Equivalence Principle and the Gravitational Casimir Effect in Superconductors

Abstract

We will use Fisher information to properly analyze the quantum weak equivalence principle. We argue that gravitational waves will be partially reflected by superconductors. This will occur as the violation of the weak equivalence principle in Cooper pairs is larger than the surrounding ionic lattice. Such reflections of virtual gravitational waves by superconductors can produce a gravitational Casimir effect, which may be detected using currently available technology.

Essay received an honorable mention in the Gravity Research Foundation Essay Competition 2020. 9 pages, 3 figures. Matches published version in IJMPD