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Fluctuation-induced torque on a topological insulator out of thermal equilibrium
M. F. Maghrebi, A. V. Gorshkov, J. D. Sau
Topological insulators with the time reversal symmetry broken exhibit strong magnetoelectric and magneto-optic effects. While these effects are well-understood in or near equilibri…
Conductance feature smearing and anisotropic suppression of induced superconductivity in a Majorana nanowire
Chun-Xiao Liu, Jay D. Sau, Tudor D. Stanescu +1
In a recent high-quality experimental work on normal metal--superconducting nanowire junctions arXiv:1807.01940 (2018), strong anisotropic suppression of induced superconductivity…
Theory of coherent phase modes in insulating Josephson junction arrays
Huan-Kuang Wu, Jay D. Sau
Recent microwave reflection measurements of Josephson junction ladders have suggested the presence of nearly coherent collective charge oscillations deep in the insulating phase. H…
Curvature of gap closing features and the extraction of Majorana nanowire parameters
Haining Pan, Jay D. Sau, Tudor D. Stanescu +1
Recent tunneling conductance measurements of Majorana nanowires show a strong variation in the magnetic field dependence of the superconducting gap among different devices. Here, w…
Quasiparticle gaps in multiprobe Majorana nanowires
Yingyi Huang, Jay D. Sau, Tudor D. Stanescu +1
We theoretically study a spin-orbit-coupled nanowire proximitized by a superconductor in the presence of an externally applied Zeeman field ("Majorana nanowire") with zero-energy M…
Diabatic errors in Majorana braiding with bosonic bath
Amit Nag, Jay D. Sau
Majorana mode based topological qubits are potentially subject to diabatic errors that in principle can limit the utility of topological quantum computation. Using a combination of…