Observation of Majorana Quasiparticles Surface States in Superfluid ${}^3$He-B by Heat Capacity Measurements

Abstract

We report about direct measurements of heat capacity of Majorana quasiparticles in superfluid ${}^3$He-B which appear near the surface of the experimental bolometer on the coherence length $\xi$. Two bolometers with different surface-to-volume ratios were used which allows us to have different calibrated contributions from Majorana quasiparticles to the ${}^3$He heat capacity. Estimations of possible impact of ${}^3$He layers adsorbed on the walls of the bolometer have been done.

arXiv comment4 page, 4 figures