output
20062025
most citedQuantum ESPRESSO toward the exascale

2.1k citations

Showing 2019Show all

15 papers · 1 filter

quant-ph2019★ 26 cited

Techniques to Reduce -Parity-Phase Circuits, Motivated by the ZX Calculus

Niel de Beaudrap, Xiaoning Bian, Quanlong Wang

To approximate arbitrary unitary transformations on one or more qubits, one must perform transformations which are outside of the Clifford group. The gate most commonly considered…

quant-ph2019★ 8 cited

AND-gates in ZX-calculus: Spider Nest Identities and QBC-completeness

Anthony Munson, Bob Coecke, Quanlong Wang

In this paper we exploit the utility of the triangle symbol which has a complicated expression in terms of spider diagrams in ZX-calculus, and its role within the ZX-representation…

quant-ph2019★ 2 cited

Generalized unitary coupled cluster excitations for multireference molecular states optimized by the Variational Quantum Eigensolver

Gabriel Greene-Diniz, David Muñoz Ramo

The variational quantum eigensolver (VQE) algorithm, designed to calculate the energy of molecular ground states on near-term quantum computers, requires specification of symmetrie…

quant-ph2019★ 10 cited

Robustness of Noether's principle: Maximal disconnects between conservation laws and symmetries in quantum theory

Cristina Cirstoiu, Kamil Korzekwa, David Jennings

To what extent does Noether's principle apply to quantum channels? Here, we quantify the degree to which imposing a symmetry constraint on quantum channels implies a conservation l…

physics.flu-dyn2019

Knot spectrum of turbulence

R. G. Cooper, M. Mesgarnezhad, A. W. Baggaley +1

Streamlines, vortex lines and magnetic flux tubes in turbulent fluids and plasmas display a great amount of coiling, twisting and linking, raising the question as to whether their…

quant-ph2019★ 1.1k cited

Parameterized quantum circuits as machine learning models

Marcello Benedetti, Erika Lloyd, Stefan Sack +1

Hybrid quantum-classical systems make it possible to utilize existing quantum computers to their fullest extent. Within this framework, parameterized quantum circuits can be regard…