LAUSR

Employing quasiclassical theory of superconductivity combined with Keldysh technique we investigate large thermoelectric effect in multiterminal ballistic normal-superconducting hybrid structures. We argue that this effect is caused by electron-hole asymmetry generated by coherent Andreev reflection of quasiparticles at interfaces of two different superconductors with nonzero phase difference. Within our model we derive a general expression for thermoelectric voltages ${V}_{T1,2}$ induced in two different normal terminals exposed to a thermal gradient. Our results apply at any temperature difference in the subgap regime and allow us to explicitly analyze both temperature and phase dependencies of ${V}_{T1,2}$, demonstrating that in general there exists no fundamental relation between these voltages and the equilibrium Josephson current in superconducting-normal-superconducting junction.