We discuss the phase dependent nonlocal thermoelectric effect in a topological Josephson junction in contact with a normal-metal probe. We show that, due to the helical nature of topological edge states, nonlocal thermoelectricity is generated by a purely Andreev interferometric mechanism. This response can be tuned by imposing a Josephson phase difference, through the application of a dissipationless current between the two superconductors, even without the need of applying an external magnetic field. We discuss in detail the origin of this effect and we provide also a realistic estimation of the nonlocal Seebeck coefficient that results of the order of few μV/K.
@article{arxiv.2007.16183,
title = {Nonlocal thermoelectricity in a topological Andreev interferometer},
author = {Gianmichele Blasi and Fabio Taddei and Liliana Arrachea and Matteo Carrega and Alessandro Braggio},
journal= {arXiv preprint arXiv:2007.16183},
year = {2021}
}