activity
20182021
most citedThe Variational Quantum Eigensolver: a review of methods and best practices

1.1k citations · 1.3k across the 6 of their papers we have counts for

collaborators

7 papers

quant-ph2021★ 1.1k cited

The Variational Quantum Eigensolver: a review of methods and best practices

Jules Tilly, Hongxiang Chen, Shuxiang Cao +8

The variational quantum eigensolver (or VQE) uses the variational principle to compute the ground state energy of a Hamiltonian, a problem that is central to quantum chemistry and…

quant-ph2021★ 42 cited

A variational quantum eigensolver for dynamic correlation functions

Hongxiang Chen, Max Nusspickel, Jules Tilly +1

Recent practical approaches for the use of current generation noisy quantum devices in the simulation of quantum many-body problems have been dominated by the use of a variational…

quant-ph2020

TensorFlow Quantum: A Software Framework for Quantum Machine Learning

Michael Broughton, Guillaume Verdon, Trevor McCourt +26

We introduce TensorFlow Quantum (TFQ), an open source library for the rapid prototyping of hybrid quantum-classical models for classical or quantum data. This framework offers high…

quant-ph2020★ 39 cited

Computation of molecular excited states on IBM quantum computers using a discriminative variational quantum eigensolver

Jules Tilly, Glenn Jones, Hongxiang Chen +2

Solving for molecular excited states remains one of the key challenges of modern quantum chemistry. Traditional methods are constrained by existing computational capabilities, limi…

quant-ph2019★ 1 cited

Machine learning logical gates for quantum error correction

Hongxiang Chen, Michael Vasmer, Nikolas P. Breuckmann +1

Quantum error correcting codes protect quantum computation from errors caused by decoherence and other noise. Here we study the problem of designing logical operations for quantum…

quant-ph2019★ 26 cited

Quantum State Discrimination Using Noisy Quantum Neural Networks

Andrew Patterson, Hongxiang Chen, Leonard Wossnig +3

Near-term quantum computers are noisy, and therefore must run algorithms with a low circuit depth and qubit count. Here we investigate how noise affects a quantum neural network (Q…

quant-ph2018★ 88 cited

Universal discriminative quantum neural networks

Hongxiang Chen, Leonard Wossnig, Simone Severini +2

Quantum mechanics fundamentally forbids deterministic discrimination of quantum states and processes. However, the ability to optimally distinguish various classes of quantum data…