Josephson AC effect induced by weak gravitational field
Giovanni Alberto Ummarino, Antonio Gallerati
Abstract
Abstract In this paper we examine the possibility of a Josephson AC effect between two superconductors induced by the Earth’s gravitational field, making use of the gravito-Maxwell formalism. The theoretical framework exploits the symmetry between the weak field expansion of the gravitational field and the standard Maxwell formulation, combined with the Josephson junction physics. We also suggest a suitable experimental setup, analysing also the related possible difficulties in measurements.
Topics & Concepts
PhysicsJosephson effectGravitational fieldSuperconductivitySymmetry (geometry)GravitationField (mathematics)Quantum electrodynamicsJosephson energyPi Josephson junctionGravitational waveCondensed matter physicsQuantum mechanicsGeneral relativityTheoretical physicsClassical mechanicsSymmetry breakingJosephson phasePhysics of Superconductivity and MagnetismAtomic and Subatomic Physics ResearchQuantum and Classical Electrodynamics