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A possibility of emission of high frequency gravitational radiation from d-wave to s-wave type superconductor junctions

Giorgio Fontana
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Abstract

Recent measurements on a class of high-Tc superconductors (HTSC) have shown that Cooper-pairs binding may be associated to a d-wave, while in another class, d and s waves may coexist. When d-wave Cooper-pairs are injected in a superconductor that can sustain s-wave binding, d-wave pairs decay to s-wave pairs and energy is irradiated by means of gravitons. We show that in s-wave to d-wave type superconductor (SDS) junctions in an equilibrium condition no net gravitational wave energy is emitted, on the other hand under non equilibrium conditions a net gravitational wave energy is emitted by the junction. Experiments which show a gravitational interaction between inomogeneus high-Tc superconductors, under non equilibrium conditions, and test objects may be understood by accepting a possibility of emission of gravitational radiation from SDS junctions.

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Giorgio Fontana. 1998-04-26. A possibility of emission of high frequency gravitational radiation from d-wave to s-wave type superconductor junctions. https://arxiv.org/abs/gr-qc/9804069

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