499 citations · 10.2k across the 260 of their papers we have counts for
8 papers · 2 filters
Noisy Bayesian optimization for variational quantum eigensolvers
Giovanni Iannelli, Karl Jansen
The variational quantum eigensolver (VQE) is a hybrid quantum-classical algorithm used to find the ground state of a Hamiltonian using variational methods. In the context of this L…
Dimensional Expressivity Analysis, best-approximation errors, and automated design of parametric quantum circuits
Lena Funcke, Tobias Hartung, Karl Jansen +3
The design of parametric quantum circuits (PQCs) for efficient use in variational quantum simulations (VQS) is subject to two competing factors. On one hand, the set of states that…
Model-Independent Error Mitigation in Parametric Quantum Circuits and Depolarizing Projection of Quantum Noise
Xiaoyang Wang, Xu Feng, Lena Funcke +5
Finding ground states and low-lying excitations of a given Hamiltonian is one of the most important problems in many fields of physics. As a novel approach, quantum computing on No…
Investigating the variance increase of readout error mitigation through classical bit-flip correction on IBM and Rigetti quantum computers
Constantia Alexandrou, Lena Funcke, Tobias Hartung +6
Readout errors are among the most dominant errors on current noisy intermediate-scale quantum devices. Recently, an efficient and scaleable method for mitigating such errors has be…
Using classical bit-flip correction for error mitigation including 2-qubit correlations
Constantia Alexandrou, Lena Funcke, Tobias Hartung +5
We present an error mitigation scheme which corrects readout errors on Noisy Intermediate-Scale Quantum (NISQ) computers [1,2]. After a short review of applying the method to one q…
Simulating gauge theories with variational quantum eigensolvers in superconducting microwave cavities
Jinglei Zhang, Ryan Ferguson, Stefan Kühn +4
Quantum-enhanced computing methods are promising candidates to solve currently intractable problems. We consider here a variational quantum eigensolver (VQE), that delegates costly…
Best-approximation error for parametric quantum circuits
Lena Funcke, Tobias Hartung, Karl Jansen +3
In Variational Quantum Simulations, the construction of a suitable parametric quantum circuit is subject to two counteracting effects. The number of parameters should be small for…
Modelling for Quantum Error Mitigation
Tom Weber, Matthias Riebisch, Kerstin Borras +2
While we expect quantum computers to surpass their classical counterparts in the future, current devices are prone to high error rates and techniques to minimise the impact of thes…