Xie, Hong-YiChou, Yang-ZhiFoster, Matthew S.2016-06-232016-06-232015Xie, Hong-Yi, Chou, Yang-Zhi and Foster, Matthew S.. "Surface transport coefficients for three-dimensional topological superconductors." <i>Physical Review B,</i> 91, no. 2 (2015) American Physical Society: 024203. http://dx.doi.org/10.1103/PhysRevB.91.024203.https://hdl.handle.net/1911/90544We argue that surface spin and thermal conductivities of three-dimensional topological superconductors are universal and topologically quantized at low temperature. For a bulk winding number ν, there are |ν| “colors” of surface Majorana fermions. Localization corrections to surface transport coefficients vanish due to time-reversal symmetry (TRS). We argue that Altshuler-Aronov interaction corrections vanish because TRS forbids color or spin Friedel oscillations. We confirm this within a perturbative expansion in the interactions, and to lowest order in a large-|ν| expansion. In both cases, we employ an asymptotically exact treatment of quenched disorder effects that exploits the chiral character unique to two-dimensional, time-reversal-invariant Majorana surface states.engArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.Journal articlehttp://dx.doi.org/10.1103/PhysRevB.91.024203