@article { WOS:000681124600002,
title = {Theory of Coulomb blockaded transport in realistic Majorana nanowires},
journal = {Phys. Rev. B},
volume = {104},
number = {8},
year = {2021},
month = {AUG 3},
publisher = {AMER PHYSICAL SOC},
type = {Article},
abstract = {Coulomb blockaded transport of topological superconducting nanowires provides an opportunity to probe the localization of states at both ends of the system in a two-terminal geometry. In addition, it provides a way for checking for subgap states away from the leads. At the same time, Coulomb blockade transport is difficult to analyze because of the interacting nature of the problem arising from the nonperturbative Coulomb interaction inherent in the phenomenon. Here we show that the Coulomb blockade transport can be modeled at the same level of complexity as quantum point contact tunneling that has routinely been used in mesoscopic physics to understand nanowire experiments provided we consider the regime where the tunneling rate is below the equilibration rate of the nanowire. This assumption leads us to a generalized Meir-Wingreen formula for the tunnel conductance which we use to study various features of the nanowire such as Andreev bound states, self-energy, and soft gap. We anticipate that our theory will provide a route to interpret Coulomb blockade transport in hybrid Majorana systems as resulting from features of the nanowire, such as Andreev bound states and soft gaps.},
issn = {2469-9950},
doi = {10.1103/PhysRevB.104.085403},
author = {Lai, Yi-Hua and Das Sarma, Sankar and Sau, Jay D.}
}
@article {ISI:000474369000008,
title = {Presence versus absence of end-to-end nonlocal conductance correlations in Majorana nanowires: Majorana bound states versus Andreev bound states},
journal = {Phys. Rev. B},
volume = {100},
number = {4},
year = {2019},
month = {JUL 3},
pages = {045302},
publisher = {AMER PHYSICAL SOC},
type = {Article},
abstract = {By calculating the differential tunneling conductance spectra from the two ends of a Majorana nanowire with a quantum dot embedded at one end, we establish that a careful examination of the nonlocal correlations of the zero-bias conductance peaks, as measured separately from the two ends of the wire, can distinguish between topological Majorana bound states and trivial Andreev bound states. In particular, there will be identical correlated zero-bias peaks from both ends for Majorana bound states, and thus the presence of correlated zero-bias conductance from the two wire ends could imply the presence of topological Majorana zero modes in the system. On the contrary, there will not be identical correlated zero-bias peaks from both ends for Andreev bound states, so the absence of correlated zero-bias conductance from the two wire ends implies the absence of topological Majorana zero modes in the system. We present detailed results for the calculated conductance, energy spectra, and wave functions for different chemical potentials at the same magnetic field values to motivate end-to-end conductance correlation measurements in Majorana nanowires.},
issn = {2469-9950},
doi = {10.1103/PhysRevB.100.045302},
author = {Lai, Yi-Hua and Sau, Jay D. and S. Das Sarma}
}