70 citations · 405 across the 19 of their papers we have counts for
19 papers
Quantum Information reveals that orbital-wise correlation is essentially classical in Natural Orbitals
Davide Materia, Leonardo Ratini, Celestino Angeli +1
The intersection of Quantum Chemistry and Quantum Computing has led to significant advancements in understanding the potential of using quantum devices for the efficient calculatio…
Quantum Information Driven Ansatz (QIDA): shallow-depth empirical quantum circuits from Quantum Chemistry
Davide Materia, Leonardo Ratini, Celestino Angeli +1
Hardware-efficient empirical variational ansätze for Variational Quantum Eigensolver simulations of Quantum Chemistry suffer from the lack of a direct connection to classical Quant…
Natural orbitals and sparsity of quantum mutual information
Leonardo Ratini, Chiara Capecci, Leonardo Guidoni
Natural orbitals, defined in electronic structure and quantum chemistry as the (molecular) orbitals diagonalizing the one-particle reduced density matrix of the ground state, have…
Optimization strategies in WAHTOR algorithm for quantum computing empirical ansatz: a comparative study
Leonardo Ratini, Chiara Capecci, Leonardo Guidoni
By exploiting the invariance of the molecular Hamiltonian by a unitary transformation of the orbitals it is possible to significantly shorter the depth of the variational circuit i…
Pulse variational quantum eigensolver on cross-resonance based hardware
Daniel J. Egger, Chiara Capecci, Bibek Pokharel +4
State-of-the-art noisy digital quantum computers can only execute short-depth quantum circuits. Variational algorithms are a promising route to unlock the potential of noisy quantu…
Improved accuracy on noisy devices by non-unitary Variational Quantum Eigensolver for chemistry applications
Francesco Benfenati, Guglielmo Mazzola, Chiara Capecci +4
We propose a modification of the Variational Quantum Eigensolver algorithm for electronic structure optimization using quantum computers, named non-unitary Variational Quantum Eige…