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- W2976755957 abstract "In many of the experimental systems that may host Majorana zero modes, a so-called chiral symmetry exists that protects overlapping zero modes from splitting up. This symmetry is operative in a superconducting nanowire that is narrower than the spin-orbit scattering length, and at the Dirac point of a superconductor/topological insulator heterostructure. Here we show that chiral symmetry strongly modifies the dynamical and spectral properties of a chaotic scatterer, even if it binds only a single zero mode. These properties are quantified by the Wigner-Smith time-delay matrix $Q=-ihbar S^dagger dS/dE$, the Hermitian energy derivative of the scattering matrix, related to the density of states by $rho=(2pihbar)^{-1},{rm Tr},Q$. We compute the probability distribution of $Q$ and $rho$, dependent on the number $nu$ of Majorana zero modes, in the chiral ensembles of random-matrix theory. Chiral symmetry is essential for a significant $nu$-dependence." @default.
- W2976755957 created "2019-10-03" @default.
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- W2976755957 date "2014-12-12" @default.
- W2976755957 modified "2023-09-24" @default.
- W2976755957 title "Chiral delay-time statistics and the dynamics of chaotic scattering from Majorana zero-modes" @default.
- W2976755957 hasPublicationYear "2014" @default.
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