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12 papers · 2 filters
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…
Robust low-energy Andreev bound states in semiconductor-superconductor heterostructures: Importance of partial separation of component Majorana bound states
Tudor D. Stanescu, Sumanta Tewari
Robust topologically trivial low-energy Andreev bound states (ABSs) induced by position-dependent effective potentials have recently come under renewed focus, in light of a remarka…
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…
Electrical detection of current generated spin in topological insulator surface states: Role of interface resistance
Connie H. Li, Olaf M. J. van t Erve, Chenhui Yan +2
Current generated spin polarization in topological insulator (TI) surface states due to spin-momentum locking has been detected recently using ferromagnet/tunnel barrier contacts,…
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…
Kitaev chain with a quantum dot
Chuanchang Zeng, Christopher Moore, Apparao M. Rao +2
We solve analytically the problem of a finite length Kitaev chain coupled to a quantum dot (QD), which extends the standard Kitaev chain problem making it more closely related to t…