3 papers
quant-ph2026
Improving Ground State Accuracy of Variational Quantum Eigensolvers with Soft-coded Orthogonal Subspace Representations
Giuseppe Clemente, Marco Intini
We propose a new approach to improve the accuracy of ground state estimates in Variational Quantum Eigensolver (VQE) algorithms by employing subspace representations with soft-code…
quant-ph2025
Noise-Aware Mixed-State Quantum Computation via Parameterized Quantum Channels
Giuseppe Clemente, Kevin Zambello
Non-unitary protocols are already at the base of many hybrid quantum computing applications, especially in the noisy intermediate-scale quantum (NISQ) era where quantum errors typi…
quant-ph2024
Mixed State Variational Quantum Eigensolver for the Estimation of Expectation Values at Finite Temperature
Giuseppe Clemente
We introduce a novel hybrid quantum-classical algorithm for the near-term computation of expectation values in quantum systems at finite temperatures. This is based on two stages:…