432 citations · 1.7k across the 21 of their papers we have counts for
21 papers
Aquila: QuEra's 256-qubit neutral-atom quantum computer
Jonathan Wurtz, Alexei Bylinskii, Boris Braverman +10
The neutral-atom quantum computer "Aquila" is QuEra's latest device available through the Braket cloud service on Amazon Web Services (AWS). Aquila is a "field-programmable qubit a…
Systematic improvement of neural network quantum states using a Lanczos recursion
Hongwei Chen, Douglas Hendry, Phillip Weinberg +1
The quantum many-body problem lies at the center of the most important open challenges in condensed matter, quantum chemistry, atomic, nuclear, and high-energy physics. While quant…
Sample generation for the spin-fermion model using neural networks
Georgios Stratis, Phillip Weinberg, Tales Imbiriba +2
Quantum Monte-Carlo simulations of hybrid quantum-classical models such as the double exchange Hamiltonian require calculating the density of states of the quantum degrees of freed…
Ferromagnetism and doublon localization in a Wannier-Hubbard chain
Samuel Milner, Phillip Weinberg, Adrian Feiguin
We derive a "Wannier-Hubbard" model consisting of an array of overlapping atomic orbitals interacting via a local Coulomb interaction. Transforming to an orthogonal Wannier basis s…
Topological to magnetically ordered quantum phase transition in antiferromagnetic spin ladders with long-range interactions
Luhang Yang, Phillip Weinberg, Adrian E. Feiguin
We study a generalized quantum spin ladder with staggered long range interactions that decay as a power-law with exponent . Using large scale quantum Monte Carlo (QMC) and the d…
A graphene edge-mediated quantum gate
Phillip Weinberg, Adrian E. Feiguin
We propose a quantum gate architecture that allows for the systematic control of the effective exchange interactions between magnetic impurities embedded in nano-scale graphene fla…
Chebyshev expansion of spectral functions using restricted Boltzmann machines
Douglas Hendry, Hongwei Chen, Phillip Weinberg +1
Calculating the spectral function of two dimensional systems is arguably one of the most pressing challenges in modern computational condensed matter physics. While efficient techn…
Enhanced Convergence of Quantum Typicality using a Randomized Low-Rank Approximation
Phillip Weinberg
We present a method to reduce the variance of stochastic trace estimators used in quantum typicality (QT) methods via a randomized low-rank approximation of the finite-temperature…
Topological to magnetically ordered quantum phase transition in antiferromagnetic spin ladders with long-range interactions
Luhang Yang, Phillip Weinberg, Adrian E. Feiguin
We study a generalized quantum spin ladder with staggered long range interactions that decay as a power-law with exponent . Using large scale quantum Monte Carlo (QMC) and densi…
Scaling and diabatic effects in quantum annealing with a D-Wave device
Phillip Weinberg, Marek Tylutki, Jami M. Rönkkö +5
We discuss quantum annealing of the two-dimensional transverse-field Ising model on a D-Wave device, encoded on lattices with . Analyzing the residual energy…
Symmetry enhanced first-order phase transition in a two-dimensional quantum magnet
Bowen Zhao, Phillip Weinberg, Anders W. Sandvik
Theoretical studies of quantum phase transitions have suggested critical points with higher symmetries than those of the underlying Hamiltonian. Here we demonstrate a surprising em…
QuSpin: a Python Package for Dynamics and Exact Diagonalisation of Quantum Many Body Systems. Part II: bosons, fermions and higher spins
Phillip Weinberg, Marin Bukov
We present a major update to QuSpin, SciPostPhys.2.1.003 -- an open-source Python package for exact diagonalization and quantum dynamics of arbitrary boson, fermion and spin many-b…
Anomalous quantum-critical scaling corrections in two-dimensional antiferromagnets
Nvsen Ma, Phillip Weinberg, Hui Shao +3
We study the Néel-paramagnetic quantum phase transition in two-dimensional dimerized Heisenberg antiferromagnets using finite-size scaling of quantum Monte Carlo data. We r…
Glassy Phase of Optimal Quantum Control
Alexandre G. R. Day, Marin Bukov, Phillip Weinberg +2
We study the problem of preparing a quantum many-body system from an initial to a target state by optimizing the fidelity over the family of bang-bang protocols. We present compell…
Asymptotic Prethermalization in Periodically Driven Classical Spin Chains
Owen Howell, Phillip Weinberg, Dries Sels +2
We reveal a continuous dynamical heating transition between a prethermal and an infinite-temperature stage in a clean, chaotic periodically driven classical spin chain. The transit…
Broken symmetry in a two-qubit quantum control landscape
Marin Bukov, Alexandre G. R. Day, Phillip Weinberg +3
We analyze the physics of optimal protocols to prepare a target state with high fidelity in a symmetrically coupled two-qubit system. By varying the protocol duration, we find a di…
Reinforcement Learning in Different Phases of Quantum Control
Marin Bukov, Alexandre G. R. Day, Dries Sels +3
The ability to prepare a physical system in a desired quantum state is central to many areas of physics such as nuclear magnetic resonance, cold atoms, and quantum computing. Yet,…
Dynamic scaling of the restoration of rotational symmetry in Heisenberg quantum antiferromagnets
Phillip Weinberg, Anders Sandvik
We apply imaginary-time evolution, , to study relaxation dynamics of gapless quantum antiferromagnets described by the spin-rotation invariant Heisenberg Hamiltonian…
QuSpin: a Python Package for Dynamics and Exact Diagonalisation of Quantum Many Body Systems part I: spin chains
Phillip Weinberg, Marin Bukov
We present a new open-source Python package for exact diagonalization and quantum dynamics of spin(-photon) chains, called QuSpin, supporting the use of various symmetries in 1-dim…
Adiabatic Perturbation Theory and Geometry of Periodically-Driven Systems
Phillip Weinberg, Marin Bukov, Luca D'Alessio +3
We give a systematic review of the adiabatic theorem and the leading non-adiabatic corrections in periodically-driven (Floquet) systems. These corrections have a two-fold origin: (…
Universal features of counting statistics of thermal and quantum phase slips in superconducting nanocircuits
A. Murphy, P. Weinberg, T. Aref +4
We perform measurements of phase-slip-induced switching current events on different types of superconducting weak links and systematically study statistical properties of the switc…