57 citations · 313 across the 13 of their papers we have counts for
13 papers
ffsim: Faster simulation of fermionic quantum circuits
Kevin J. Sung, Inho Choi, Mirko Amico +14
We present ffsim, an open-source software library for fast simulation of fermionic quantum circuits. ffsim exploits conservation of particle number and the z component of spin, sym…
Tensor Network Python (TeNPy) version 1
Johannes Hauschild, Jakob Unfried, Sajant Anand +27
TeNPy (short for 'Tensor Network Python') is a python library for the simulation of strongly correlated quantum systems with tensor networks. The philosophy of this library is to a…
HofstadterTools: A Python package for analyzing the Hofstadter model
Bartholomew Andrews
The Hofstadter model successfully describes the behavior of non-interacting quantum particles hopping on a lattice coupled to a gauge field, and hence is ubiquitous in many fields…
Localization renormalization and quantum Hall systems
Bartholomew Andrews, Dominic Reiss, Fenner Harper +1
The obstruction to constructing localized degrees of freedom is a signature of several interesting condensed matter phases. We introduce a localization renormalization procedure th…
Stability of fractional Chern insulators with a non-Landau level continuum limit
Bartholomew Andrews, Mathi Raja, Nimit Mishra +2
The stability of fractional Chern insulators is widely believed to be predicted by the resemblance of their single-particle spectra to Landau levels. We investigate the scope of th…
Self-similarity of spectral response functions for fractional quantum Hall states
Bartholomew Andrews, Gunnar Möller
Spectral response functions are central quantities in the analysis of quantum many-body states, since they describe the response of many-body systems to external perturbations and…
Fractional Chern insulators with a non-Landau level continuum limit
David Bauer, Spenser Talkington, Fenner Harper +2
Recent developments in fractional quantum Hall (FQH) physics highlight the importance of studying FQH phases of particles partially occupying energy bands that are not Landau level…
Stability, phase transitions, and numerical breakdown of fractional Chern insulators in higher Chern bands of the Hofstadter model
Bartholomew Andrews, Titus Neupert, Gunnar Möller
The Hofstadter model is a popular choice for theorists investigating the fractional quantum Hall effect on lattices, due to its simplicity, infinite selection of topological flat b…
Abelian topological order of and fractional quantum Hall states in lattice models
Bartholomew Andrews, Madhav Mohan, Titus Neupert
Determining the statistics of elementary excitations supported by fractional quantum Hall states is crucial to understanding their properties and potential applications. In this pa…
Absence of diagonal force constants in cubic Coulomb crystals
Bartholomew Andrews, Gareth Conduit
The quasi-harmonic model proposes that a crystal can be modeled as atoms connected by springs. We demonstrate how this viewpoint can be misleading: a simple application of Gauss' l…
Fractional quantum Hall states for moiré superstructures in the Hofstadter regime
Bartholomew Andrews, Alexey Soluyanov
We study the transition of and fractional quantum Hall states of the honeycomb Hofstadter model as we tune to a two-orbital moiré superlattice Hamiltonian, motivated…
Direct evaluation of the force constant matrix in quantum Monte Carlo
Yu Yang Fredrik Liu, Bartholomew Andrews, Gareth J. Conduit
We develop a formalism to directly evaluate the matrix of force constants within a Quantum Monte Carlo calculation. We utilize the matrix of force constants to accurately relax the…
Stability of fractional Chern insulators in the effective continuum limit of Harper-Hofstadter bands with Chern number
Bartholomew Andrews, Gunnar Möller
We study the stability of composite fermion fractional quantum Hall states in Harper-Hofstadter bands with Chern number . We analyze the states of the composite fermion seri…