Sinai Diffusion at Quasi-1D Topological Phase Transitions

Dmitry Bagrets, Alexander Altland, Alex Kamenev

Research output: Contribution to journalArticlepeer-review

9 Scopus citations


We consider critical quantum transport in disordered topological quantum wires at the transition between phases with different topological indices. Focusing on the example of thermal transport in class D ("Majorana") quantum wires, we identify a transport universality class distinguished for anomalous retardation in the propagation of excitations - a quantum generalization of Sinai diffusion. We discuss the expected manifestations of this transport mechanism for heat propagation in topological superconductors near criticality and provide a microscopic theory explaining the phenomenon.

Original languageEnglish (US)
Article number196801
JournalPhysical review letters
Issue number19
StatePublished - Nov 1 2016

Bibliographical note

Funding Information:
The research of A.K. was supported by National Science Foundation Grant No. DMR1306734.

Publisher Copyright:
© 2016 American Physical Society.


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