Journal
PHYSICAL REVIEW LETTERS
Volume 108, Issue 2, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.108.026802
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Funding
- MEXT [20740167, 19048008, 19048015, 21244053]
- Japan Science and Technology Agency
- Japan Society for the Promotion of Science (JSPS)
- Grants-in-Aid for Scientific Research [21244053, 20740167] Funding Source: KAKEN
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We study nontrivial responses of topological superconductors and superfluids to the temperature gradient and rotation of the system. In two-dimensional gapped systems, the Streda formula for the electric Hall conductivity is generalized to the thermal Hall conductivity. Applying this formula to the Majorana surface states of three-dimensional topological superconductors predicts cross-correlated responses between the orbital angular momentum and thermal polarization (entropy polarization). These results can be naturally related to the gravitoelectromagnetism description of three-dimensional topological superconductors and superfluids, analogous to the topological magnetoelectric effect in Z(2) topological insulators.
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