135 citations · 343 across the 21 of their papers we have counts for
22 papers
Nonlocal Josephson coupling and current redistribution in a large-area graphene multiterminal Josephson junction
Luojia Zhang, Kushagra Aggarwal, Jay D. Sau +4
Multiterminal Josephson junctions (MTJJs) extend conventional two-terminal Josephson physics to devices defined by multiple superconducting phases, where rich phenomena have been p…
Avoiding Dilution: Using Diffusion and Vision Transformers to resolve Majorana Features in Nanowires at High Temperature
Jacob R. Taylor, Haining Pan, Jay D. Sau +1
Identifying Majorana zero modes in semiconductor--superconductor nanowires requires ultra-low temperature transport measurements in dilution refrigerators, making device screening…
Evolution from an acoustic-plasmon-mediated superconductivity to an acoustic-phonon-mediated superconductivity in bilayers
Shuyang Wang, Sankar Das Sarma, Jay D. Sau
Motivated by recent developments in van der Waals heterostructures, we revisit the acoustic plasmon mechanism of superconductivity in bilayer systems composed of a light layer (LL)…
Ising criticality can drive vortex deconfinement in a spin-orbit coupled Bose gas
Stuart Yi-Thomas, David M. Long, Jay D. Sau
Spin-orbit coupling in Bose gases is known to lead to an Ising-symmetry-broken phase where the bosons condense at one of two nonzero momenta. In two dimensions, the finite momentum…
Andreev spin qubits bound to Josephson vortices in spin-orbit coupled planar Josephson junctions
Katharina Laubscher, Valla Fatemi, Jay D. Sau
We propose a variant of Andreev spin qubits (ASQs) defined in planar Josephson junctions based on spin-orbit coupled two-dimensional electron gases (2DEGs) in a weak out-of-plane m…
Superconductivity from phonon-mediated retardation in a single-flavor metal
Yang-Zhi Chou, Jihang Zhu, Jay D. Sau +1
We study phonon-mediated pairings in a single-flavor metal with a tunable Berry curvature. In the absence of Berry curvature, we discover an unexpected possibility: -wave superc…
Conventional and practical metallic superconductivity arising from repulsive Coulomb coupling
Sankar Das Sarma, Jay D. Sau, Yi-Ting Tu +1
A concrete question is discussed: Can there be conventional s-wave superconductivity in regular 3D (or 2D) metals, i.e., electrons in a jellium background, interacting via the stan…
Ballistic transport in 1D Rashba systems in the context of Majorana nanowires
Haining Pan, Jacob R. Taylor, Jay D. Sau +1
Recent work on Majorana-bound states in semiconductor-superconductor hybrid structures has elucidated the key role of unintentional (and unknown) disorder (producing low-energy And…
Rashba spin-orbit coupling and artificially engineered topological superconductors
Sankar Das Sarma, Katharina Laubscher, Haining Pan +2
One of the most important physical effects in condensed matter physics is the Rashba spin-orbit coupling (RSOC), introduced in seminal works by Emmanuel Rashba. In this article, we…
Integer Quantum Hall Effect: Disorder, temperature, floating, and plateau width
Stuart Yi-Thomas, Yi Huang, Jay D. Sau +1
We theoretically consider disorder and temperature effects on the integer quantum Hall effect (IQHE) using a variety of distinct and complementary analytical and numerical techniqu…
Theory of anomalous Hall effect from screened vortex charge in a phase disordered superconductor
Jay D. Sau, Shuyang Wang
Motivated by recent experiments showing evidence for chiral superconductivity in an anomalous Hall phase of tetralayer graphene, we study the relation between the normal state anom…
Detection of Majorana zero modes bound to Josephson vortices in planar superconductor-topological insulator-superconductor junctions
Katharina Laubscher, Jay D. Sau
We study signatures of Majorana zero modes (MZMs) bound to Josephson vortices in superconductor-three-dimensional topological insulator-superconductor (S-TI-S) Josephson junctions…
Capacitance-based Fermion parity read-out and predicted Rabi oscillations in a Majorana nanowire
Jay D. Sau, Sankar Das Sarma
Recent experiments have measured flux dependent capacitance at radio frequencies leading to the potential for a fast parity read-out of a Majorana qubit. In this work we argue that…
Quantum hall transformer in a quantum point contact over the full range of transmission
Stuart Yi-Thomas, Jay D. Sau
A recent experiment [Cohen et al., Science 382, 542 (2023)] observed a robustly quantized conductance in a quantum point contact between fractional quantum Hall edges (a q…
Topologically protected emergent Fermi surface in an Abrikosov vortex lattice
Songyang Pu, Jay D. Sau, Rui-Xing Zhang
We show that a three-dimensional (3D) fully gapped type-II superconductor can feature emergent in-gap Fermi surfaces of Caroli-de Gennes Matricon (CdGM) quasiparticles in the prese…
Eliashberg theory for dynamical screening in bilayer exciton condensation
G. J. Sreejith, Jay D. Sau, Sankar Das Sarma
We study the effect of dynamical screening of interactions on the transition temperatures () of exciton condensation in a symmetric bilayer of quadratically dispersing electro…
Interaction robustness of the chiral anomaly in Weyl semimetals and Luttinger liquids from a mixed anomaly approach
Shuyang Wang, Jay D. Sau
The chiral anomaly is one of the robust quantum effects in relativistic field theories with a chiral symmetry where charges in chiral sectors appear to be separately conserved. The…
Comparing numerical methods for hydrodynamics in a one-dimensional lattice spin model
Stuart Yi-Thomas, Brayden Ware, Jay D. Sau +1
In ergodic quantum spin chains, locally conserved quantities such as energy or particle number generically evolve according to hydrodynamic equations as they relax to equilibrium.…
Parafermionic zero modes in ultracold bosonic systems
Mohammad F. Maghrebi, Sriram Ganeshan, David J. Clarke +2
Exotic topologically protected zero modes with parafermionic statistics (also called fractionalized Majorana modes) have been proposed to emerge in devices fabricated from a fracti…
Topological Yu-Shiba-Rusinov chain from spin-orbit coupling
P. M. R. Brydon, S. Das Sarma, Hoi-Yin Hui +1
We investigate the possibility of realizing a topological state in the impurity band formed by a chain of classical spins embedded in a two-dimensional singlet superconductor with…
Phase diagram and excitations of a Shiba molecule
N. Y. Yao, C. P. Moca, I. Weymann +4
We analyze the phase diagram associated with a pair of magnetic impurities trapped in a superconducting host. The natural interplay between Kondo screening, superconductivity and e…
Odd-parity superconductivity from phonon-mediated pairing: Application to CuBiSe
P. M. R. Brydon, S. Das Sarma, Hoi-Yin Hui +1
Motivated by the proposed topological state in CuBiSe, we study the possibility of phonon-mediated odd-parity superconductivity in spin-orbit coupled systems with time-…