3 papers
quant-ph2026
Revealing the topology of quantum states via Kirkwood-Dirac quasiprobabilities
Stefano Gherardini, Luca Lepori
We discuss a theoretical approach to discriminate whether two states of a many-body quantum system belong or not to different topology classes. This approach is based on expressing…
quant-ph2025
Reversing adiabatic state preparation in few-level quantum systems
L. Romanato, N. Eshaqi-Sani, L. Lepori +3
We present a detailed study of an adiabatic state preparation in an effective three-level quantum system. States can be prepared with high speed and fidelity by adding a counterdia…
quant-ph2025
Detecting quasi-degenerate ground states in topological models via variational quantum eigensolver
Carola Ciaramelletti, Martin Beseda, Mirko Consiglio +3
We study the exact ground states of the Su--Schrieffer--Heeger open chain and of the Kitaev open chain, using the Variational Quantum Eigensolver (VQE) algorithm. These models host…