3.5k citations · 12.8k across the 143 of their papers we have counts for
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Germanium-based hybrid semiconductor-superconductor topological quantum computing platforms: Disorder effects
Katharina Laubscher, Jay D. Sau, Sankar Das Sarma
It was recently suggested that proximitized gate-defined Ge hole nanowires could serve as an alternative materials platform for the realization of topological Majorana zero modes (…
Machine Learning the Disorder Landscape of Majorana Nanowires
Jacob R. Taylor, Jay D. Sau, Sankar Das Sarma
We develop a practical machine learning approach to determine the disorder landscape of Majorana nanowires by using training of the conductance matrix and inverting the conductance…
Symmetric, off-diagonal, resistance from rotational symmetry breaking in graphene-WSe heterostructure: prediction for a large magic angle in a Moire system
Jay D. Sau, Sumanta Tewari
We show that any two-dimensional system with a non-zero \textit{symmetric} off-diagonal component of the resistance matrix, , must have the in-plane rotationa…
Optical pumping of electronic quantum Hall states with vortex light
Deric Session, Mahmoud Jalali Mehrabad, Nikil Paithankar +13
A fundamental requirement for quantum technologies is the ability to coherently control the interaction between electrons and photons. However, in many scenarios involving the inte…
Spectral properties, topological patches, and effective phase diagrams of finite disordered Majorana nanowires
Sankar Das Sarma, Jay D. Sau, Tudor D. Stanescu
We consider theoretically the physics of bulk topological superconductivity accompanied by boundary non-Abelian Majorana zero modes in semiconductor-superconductor (SM-SC) hybrid s…
Majorana zero modes in gate-defined germanium hole nanowires
Katharina Laubscher, Jay D. Sau, Sankar Das Sarma
We theoretically study gate-defined one-dimensional channels in planar Ge hole gases as a potential platform for non-Abelian Majorana zero modes. We model the valence band holes in…
Fusion protocol for Majorana modes in coupled quantum dots
Chun-Xiao Liu, Haining Pan, F. Setiawan +2
In a recent breakthrough experiment [Nature (London) 614, 445 (2023)], signatures of Majorana zero modes have been observed in tunnel spectroscopy for a minimal Kitaev chain constr…
Disorder Suppression in Topological Semiconductor-Superconductor Junctions
Stuart N. Thomas, Stuart Yi-Thomas, Sankar Das Sarma +1
Disorder in a proximitizing bulk superconductor can scatter quasiparticles in a putative topological superconductor and eventually destroy the topological superconducting state. We…
Random matrix theory for the robustness, quantization, and end-to-end correlation of zero-bias conductance peaks in a class D ensemble
Haining Pan, Jay Deep Sau, Sankar Das Sarma
We develop a general theory to study strong random quenched disorder effects in systems of experimental relevance in the search for Majorana zero modes (MZM) in topological superco…
Quality factor for zero-bias conductance peaks in Majorana nanowire
Yi-Hua Lai, Sankar Das Sarma, Jay D. Sau
Despite recent experimental progress towards observing large zero-bias conductance peaks (ZBCPs) as signatures of Majorana modes, confusion remains about whether Majorana modes hav…
Theory of Coulomb blockaded transport in realistic Majorana nanowires
Yi-Hua Lai, Sankar Das Sarma, Jay D. Sau
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 geomet…
Three-terminal nonlocal conductance in Majorana nanowires: Distinguishing topological and trivial in realistic systems with disorder and inhomogeneous potential
Haining Pan, Jay D. Sau, S. Das Sarma
We develop a theory for the three-terminal nonlocal conductance in Majorana nanowires as existing in the superconductor-semiconductor hybrid structures in the presence of supercond…
Electron-boson-interaction induced particle-hole symmetry breaking of conductance into subgap states in superconductors
F. Setiawan, Jay D. Sau
Particle-hole symmetry (PHS) of conductance into subgap states in superconductors is a fundamental consequence of a noninteracting mean-field theory of superconductivity. The break…
Quest for topological superconductivity at superconductor-semiconductor interfaces
S. M. Frolov, M. J. Manfra, J. D. Sau
We analyze the evidence of Majorana zero modes in nanowires that came from tunneling spectroscopy and other experiments, and scout the path to topologically protected states that a…
Non-equilibrium nature of non-linear optical response: Application to the bulk photo voltaic effect
Tamoghna Barik, Jay D. Sau
The bulk photovoltaic effect is an example of a non-linear optical response that leads to a DC current that is relevant for photo-voltaic applications. In this work, we theoretical…
Ferromagnetism and its stability from the one-magnon spectrum in twisted bilayer graphene
Yahya Alavirad, Jay D. Sau
We study ferromagnetism and its stability in twisted bilayer graphene. We work with a Hubbard-like interaction that corresponds to the screened Coulomb interaction in a well-define…
Symmetry-breaking signatures of multiple Majorana zero modes in one-dimensional spin-triplet superconductors
Arnab Barman Ray, Jay D. Sau, Ipsita Mandal
We study the effects of various symmetry-breaking perturbations on the experimentally measurable signatures (such as conductance and Josephson response) of quasi-one-dimensional (q…
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…
Probing and dressing magnetic impurities in a superconductor
Kamphol Akkaravarawong, Jukka I. Väyrynen, Jay D. Sau +3
We propose a method to probe and control the interactions between an ensemble of magnetic impurities in a superconductor via microwave radiation. Our method relies upon the presenc…
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…
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…
Metamorphosis of Andreev bound states into Majorana bound states in pristine nanowires
Yingyi Huang, Haining Pan, Chun-Xiao Liu +3
We show theoretically that in the generic finite chemical potential situation, the clean superconducting spin-orbit-coupled nanowire has two distinct nontopological regimes as a fu…