447 citations · 1.6k across the 27 of their papers we have counts for
27 papers
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…
Supercurrent decay in ballistic magnetic Josephson junctions
Hervé Ness, Ivan A. Sadovskyy, Andrey E. Antipov +2
We investigate transport properties of ballistic magnetic Josephson junctions and establish that suppression of supercurrent is an intrinsic property of the junctions, even in abse…
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…
Fluctuation diagnostics of the finite temperature quasi-antiferromagnetic regime of the 2D Hubbard model
Behnam Arzhang, A. E. Antipov, J. P. F. LeBlanc
We study the finite temperature Fermi-liquid to non-Fermi-liquid crossover in the 2D Hubbard model for a range of dopings using the self-consistent ladder dual fermion method. We c…
Magnetic Susceptibility and Simulated Neutron Signal in the 2D Hubbard Model
J. P. F. LeBlanc, Shaozhi Li, Xi Chen +4
We compute dynamic spin susceptibilities in the two-dimensional Hubbard model using the method of Dual Fermions and provide comparison to lattice Monte Carlo and cluster dynamical…
Current-phase relations of InAs nanowire Josephson junctions: from interacting to multi-mode regimes
Sean Hart, Zheng Cui, Gerbold Menard +6
Gate-tunable semiconductor-superconductor nanowires with superconducting leads form exotic Josephson junctions that are a highly desirable platform for two types of qubits: those w…
Updated Core Libraries of the ALPS Project
Markus Wallerberger, Sergei Iskakov, Alexander Gaenko +13
The open source ALPS (Algorithms and Libraries for Physics Simulations) project provides a collection of physics libraries and applications, with a focus on simulations of lattice…
A unified numerical approach to semiconductor-superconductor heterostructures
Georg W. Winkler, Andrey E. Antipov, Bernard van Heck +4
We develop a unified numerical approach for modeling semiconductor-superconductor heterostructures. Our approach takes into account on equal footing important key ingredients: prox…
Electric field tunable superconductor-semiconductor coupling in Majorana nanowires
Michiel W. A. de Moor, Jouri D. S. Bommer, Di Xu +16
We study the effect of external electric fields on superconductor-semiconductor coupling by measuring the electron transport in InSb semiconductor nanowires coupled to an epitaxial…
Dynamics of Majorana-based qubits operated with an array of tunable gates
Bela Bauer, Torsten Karzig, Ryan V. Mishmash +2
We study the dynamics of Majorana zero modes that are shuttled via local tuning of the electrochemical potential in a superconducting wire. By performing time-dependent simulations…
Effects of gate-induced electric fields on semiconductor Majorana nanowires
Andrey E. Antipov, Arno Bargerbos, Georg W. Winkler +3
We study the effect of gate-induced electric fields on the properties of semiconductor-superconductor hybrid nanowires which represent a promising platform for realizing topologica…
Spreading of correlations in the Falicov-Kimball model
Andreas J. Herrmann, Andrey E. Antipov, Philipp Werner
We study dynamical properties of the one- and two-dimensional Falicov-Kimball model using lattice Monte Carlo simulations. In particular, we calculate the spreading of charge corre…
Quantum Monte Carlo solution of the dynamical mean field equations in real time
Qiaoyuan Dong, Igor Krivenko, Joseph Kleinhenz +3
We present real-time inchworm quantum Monte Carlo results for single-site dynamical mean field theory on an infinite coordination number Bethe lattice. Our numerically exact result…
Diagrammatic routes to nonlocal correlations beyond dynamical mean field theory
G. Rohringer, H. Hafermann, A. Toschi +6
Strong electronic correlations pose one of the biggest challenges to solid state theory. We review recently developed methods that address this problem by starting with the local,…
Currents and Green's functions of impurities out of equilibrium -- results from inchworm Quantum Monte Carlo
Andrey E. Antipov, Qiaoyuan Dong, Joseph Kleinhenz +2
We generalize the recently developed inchworm quantum Monte Carlo method to the full Keldysh contour with forward, backward, and equilibrium branches to describe the dynamics of st…
Diagrammatic Monte Carlo for Dual Fermions
Sergei Iskakov, Andrey E. Antipov, Emanuel Gull
We introduce a numerical algorithm to stochastically sample the dual fermion perturbation series around the dynamical mean field theory, generating all topologies of two-particle i…
Interaction-tuned Anderson versus Mott localization
Andrey E. Antipov, Younes Javanmard, Pedro Ribeiro +1
Disorder or sufficiently strong interactions can render a metallic state unstable causing it to turn into an insulating one. Despite the fact that the interplay of these two routes…
Voltage quench dynamics of a Kondo system
Andrey E. Antipov, Qiaoyuan Dong, Emanuel Gull
We examine the dynamics of a correlated quantum dot in the mixed valence regime. We perform numerically exact calculations of the current after a quantum quench from equilibrium by…
opendf - an implementation of the dual fermion method for strongly correlated systems
Andrey E. Antipov, James P. F. LeBlanc, Emanuel Gull
The dual fermion method is a multiscale approach for solving lattice problems of interacting strongly correlated systems. In this paper, we present the \texttt{opendf} code, an ope…
Mechanisms of finite temperature magnetism in the three-dimensional Hubbard model
Daniel Hirschmeier, Hartmut Hafermann, Emanuel Gull +2
We examine the nature of the transition to the antiferromagnetically ordered state in the half-filled three-dimensional Hubbard model using the dual-fermion multiscale approach. Co…
Mott insulator breakdown through pattern formation
Pedro Ribeiro, Andrey E. Antipov, Alexey N. Rubtsov
We study the breakdown of a Mott insulator with the thermodynamic imbalance induced by an applied bias voltage. By analyzing the instabilities of the magnetic susceptibility, we de…
Modeling the metastable dynamics of correlated structures
Alexey M. Shakirov, Sergey V. Tsibulsky, Andrey E. Antipov +2
Metastable quantum dynamics of an asymmetric triangular cluster that is coupled to a reservoir is investigated. The dynamics is governed by bath-mediated transitions, which in part…
Critical Exponents of Strongly Correlated Fermion Systems from Diagrammatic Multi-Scale Methods
Andrey E. Antipov, Emanuel Gull, Stefan Kirchner
Self-consistent dynamical approximations for strongly correlated fermion systems are particularly successful in capturing the dynamical competition of local correlations. In these,…
Competing phases of the Hubbard model on a triangular lattice -- insights from the entropy
Gang Li, Andrey E. Antipov, Alexey N. Rubtsov +2
Based on the ladder dual-fermion approach, we present a comprehensive study of the phases of the isotropic Hubbard model on the triangular lattice. We find a rich phase diagram con…