216 citations · 1.5k across the 24 of their papers we have counts for
24 papers
Nonlocal conductance of a Majorana wire near the topological transition
Vladislav D. Kurilovich, William S. Cole, Roman M. Lutchyn +1
We develop a theory of the nonlocal conductance for a disordered Majorana wire tuned near the topological transition critical point. Under these conditions, the antisym…
Comment on Hess et al. Phys. Rev. Lett. {\bf 130}, 207001 (2023)
A. Antipov, W. Cole, K. Kalashnikov +5
In this comment, we show that the model introduced in Hess et al. Phys. Rev. Lett. {\bf 130}, 207001 (2023) fails the topological gap protocol (TGP) (Pikulin et al., arXiv:2103.122…
InAs-Al Hybrid Devices Passing the Topological Gap Protocol
Morteza Aghaee, Arun Akkala, Zulfi Alam +124
We present measurements and simulations of semiconductor-superconductor heterostructure devices that are consistent with the observation of topological superconductivity and Majora…
Topological superconductivity in nanowires proximate to a diffusive superconductor-magnetic insulator bilayer
Aleksei Khindanov, Jason Alicea, Patrick Lee +2
We study semiconductor nanowires coupled to a bilayer of a disordered superconductor and a magnetic insulator, motivated by recent experiments reporting possible Majorana-zero-mode…
Quasiparticle poisoning of Majorana qubits
Torsten Karzig, William S. Cole, Dmitry I. Pikulin
Qubits based on Majorana zero modes are a promising path towards topological quantum computing. Such qubits, though, are susceptible to quasiparticle poisoning which does not have…
Higher Order Topology and Nodal Topological Superconductivity in Fe(Se,Te) Heterostructures
Rui-Xing Zhang, William S. Cole, Xianxin Wu +1
We show theoretically that a heterostructure of monolayer FeTeSe - a superconducting quantum spin Hall material - with a monolayer of FeTe - a bicollinear antiferromagn…
Generic quantized zero-bias conductance peaks in superconductor-semiconductor hybrid structures
Haining Pan, William S. Cole, Jay D. Sau +1
We show theoretically that quantized zero-bias conductance peaks should be ubiquitous in superconductor-semiconductor hybrids by employing a zero-dimensional random matrix model wi…
Inversion-protected higher order topological superconductivity in monolayer WTe
Yi-Ting Hsu, William S. Cole, Rui-Xing Zhang +1
Monolayer WTe, a centrosymmetric transition metal dichacogenide, has recently been established as a quantum spin Hall insulator and found superconducting upon gating. Here we s…
Helical Hinge Majoranas in Iron-Based Superconductors
Rui-Xing Zhang, William S. Cole, S. Das Sarma
Motivated by recent experiments on FeTeSe, we construct an explicit minimal model of an iron-based superconductor with band inversion at the point and non-topolog…
Proposal for measuring the parity anomaly in a topological superconductor ring
Chun-Xiao Liu, William S. Cole, Jay D. Sau
A topological superconductor ring is uniquely characterized by a switch in the ground state fermion number parity upon insertion of one superconducting flux quantum - a direct cons…
Spin-orbit coupled bosons in one dimension: emergent gauge field and Lifshitz transition
William S. Cole, Junhyun Lee, Khan W. Mahmud +3
In the presence of strong spin-independent interactions and spin-orbit coupling, we show that the spinor Bose liquid confined to one spatial dimension undergoes an interaction- or…
Ising quantum criticality in Majorana nanowires
William S. Cole, Jay D. Sau, S. Das Sarma
Finite-length one-dimensional topological superconductor wires host localized Majorana zero modes at their ends. In realistic models, these appear only after a topological quantum…
Strong coupling phases of the spin-orbit-coupled spin-1 Bose-Hubbard chain: odd integer Mott lobes and helical magnetic phases
J. H. Pixley, William S. Cole, I. B. Spielman +2
We study the odd integer filled Mott phases of a spin-1 Bose-Hubbard chain and determine their fate in the presence of a Raman induced spin-orbit coupling which has been achieved i…
Transport in superconductor--normal metal--superconductor tunneling structures: Spinful p-wave and spin-orbit-coupled topological wires
F. Setiawan, William S. Cole, Jay D. Sau +1
We theoretically study transport properties of voltage-biased one-dimensional superconductor--normal metal--superconductor tunnel junctions with arbitrary junction transparency whe…
Conductance spectroscopy of nontopological-topological superconductor junctions
F. Setiawan, William S. Cole, Jay D. Sau +1
We calculate the zero-temperature differential conductance of a voltage-biased one-dimensional junction between a nontopological and a topological superconductor for arbitr…
Induced spectral gap and pairing correlations from superconducting proximity effect
Ching-Kai Chiu, William S. Cole, S. Das Sarma
We theoretically consider superconducting proximity effect, using the Bogoliubov-de Gennes theory, in heterostructure sandwich-type geometries involving a normal s-wave superconduc…
Proximity effect and Majorana bound states in clean semiconductor nanowires coupled to disordered superconductors
William S. Cole, Jay D. Sau, S. Das Sarma
We study a semiconductor wire with strong spin-orbit coupling, which is proximity-coupled to a superconductor with chemical potential disorder. When tunneling at the semiconductor-…
Effects of large induced superconducting gap on semiconductor Majorana nanowires
William S. Cole, S. Das Sarma, Tudor D. Stanescu
With the recent achievement of extremely high-quality epitaxial interfaces between InAs nanowires and superconducting Al shells with strong superconductor-semiconductor tunnel coup…
Striped Ferronematic ground states in a spin-orbit coupled Bose gas
Stefan S. Natu, Xiaopeng Li, William S. Cole
We theoretically establish the mean-field phase diagram of a homogeneous spin-, spin-orbit coupled Bose gas as a function of the spin-dependent interaction parameter, the Raman…
Spin-orbit Coupling in Optical lattices
Shizhong Zhang, William S. Cole, Arun Paramekanti +1
In this review, we discuss the physics of spin-orbit coupled quantum gases in optical lattices. After reviewing some relevant experimental techniques, we introduce the basic theore…
Mott-Superfluid Transition for Spin-Orbit Coupled Bosons in One-Dimensional Optical Lattices
Zhihao Xu, William Cole, Shizhong Zhang
We study the effects of spin-orbit coupling on the Mott-superfluid transition of bosons in a one-dimensional optical lattice. We determine the strong coupling magnetic phase diagra…
Novel magnetic state in Mott insulators
O. Nganba Meetei, William S. Cole, Mohit Randeria +1
We show that the interplay of strong Hubbard interaction and spin-orbit coupling in systems with electronic configuration leads to several unusual magnetic phases. Mo…
Theory of Strain-Controlled Magnetotransport and Stabilization of the Ferromagnetic Insulating Phase in Manganite Thin Films
Anamitra Mukherjee, William S. Cole, Patrick Woodward +2
We show that applying strain on half-doped manganites makes it possible to tune the system to the proximity of a metal-insulator transition and thereby generate a colossal magnetor…
Bose Hubbard Models with Synthetic Spin-Orbit Coupling: Mott Insulators, Spin Textures and Superfluidity
William S. Cole, Shizhong Zhang, Arun Paramekanti +1
Motivated by the experimental realization of synthetic spin-orbit coupling for ultracold atoms, we investigate the phase diagram of the Bose Hubbard model in a non-abelian gauge fi…