Ponente
Prof.
Deog-Ki Hong
(Pusan National University)
Descripción
We propose a new method, using the Andreev reflection at superconductors, to measure parity violation induced by the standard electroweak theory, which in turn constrain the possible parity-violating effect of new physics. The weak neutral currents induce parity-violating, marginal effective operators, though quite tiny, in superconductors. We estimate their effects on supercon- ducting gaps and propose a method to measure the parity-violation from the spin polarization effect when electrons or holes get Andreev-reflected at the interface between normal metal and a superconductor. Such polarization effects are comparable to the atomic parity violation and thus naturally will give a stringent bound on certain models of new physics.
Autor primario
Prof.
Deog-Ki Hong
(Pusan National University)
