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Soft Superconducting Gap in Semiconductor Majorana Nanowires
So Takei, Benjamin M. Fregoso, Hoi-Yin Hui +2
We theoretically consider the ubiquitous soft gap measured in the tunneling conductance of semiconductor-superconductor hybrid structures, in which recently observed signatures of…
Intrinsic Electron-Phonon Resistivity in Bi2Se3 in the Topological Regime
Dohun Kim, Qiuzi Li, Paul Syers +4
We measure the temperature-dependent carrier density and resistivity of the topological surface state of thin exfoliated Bi2Se3 in the absence of bulk conduction. When the gate-tun…
Quantum Decoherence of the Central Spin in a Sparse System of Dipolar Coupled Spins
Wayne M. Witzel, Malcolm S. Carroll, Lukasz Cywinski +1
The central spin decoherence problem has been researched for over 50 years in the context of both nuclear magnetic resonance and electron spin resonance. Until recently, theoretica…
Nonperturbative master equation solution of central spin dephasing dynamics
Edwin Barnes, Łukasz Cywiński, S. Das Sarma
We solve the long-standing central spin problem for a general set of inhomogeneous bath couplings and a large class of initial bath states. We compute the time evolution of the coh…
The compressibility of graphene
D. S. L. Abergel
We present a review of the electronic compressibility of monolayer and bilayer graphene. We focus on describing theoretical calculations of the effects of electron--electron intera…
Interplay of disorder and interaction in Majorana quantum wires
Alejandro M. Lobos, Roman M. Lutchyn, S. Das Sarma
We study the interplay between disorder and interaction in one-dimensional topological superconductors which carry localized Majorana zero-energy states. Using Abelian bosonization…