Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Phase-coherent thermoelectricity in superconducting hybrids (Brief
  Review)   We review some recent advances in studies of phase-coherent thermoelectric
effects in superconducting hybrid structures such as, e.g., Andreev
interferometers. We elucidate a number of mechanisms of electron-hole symmetry
breaking in such systems causing dramatic enhancement of thermoelectric
effects. We demonstrate that the flux-dependent thermopower exhibits periodic
dependence on the applied magnetic flux $\Phi_x$ which in some limits may
reduce to either odd or even functions of $\Phi_x$ in accordance with
experimental observations. We also show that dc Josephson current in Andreev
interferometers can be controlled and enhanced by applying a temperature
gradient which may also cause a nontrivial current-phase relation and a
transition to a $\pi$-junction state.

32
The categories of this paper are: atom-ph
7
The categories of this paper are: hep-th
35
The categories of this paper are: mtrl-th
18
The categories of this paper are: econ
31
The categories of this paper are: ao-sci
33
The categories of this paper are: plasm-ph
27
The categories of this paper are: comp-gas
17
The categories of this paper are: q-fin
37
The categories of this paper are: supr-con
26
The categories of this paper are: bayes-an
13
The categories of this paper are: quant-ph
24
The categories of this paper are: dg-ga
5
The categories of this paper are: gr-qc
8
The categories of this paper are: hep-ex
6
The categories of this paper are: astro-ph
21
The categories of this paper are: adap-org