2 papers
quant-ph2025
Multi-stage tomography based on eigenanalysis for high-dimensional dense unitary processes in gate-based quantum computers
Yannick Deville, Alain Deville
Quantum Process Tomography (QPT) methods aim at identifying, i.e. estimating, a quantum process. QPT is a major quantum information processing tool, since it especially allows one…
quant-ph2025
The Landau-Feynman transiently open quantum system: entanglement and density operators
Alain Deville, Yannick Deville
Users of quantum mechanics, both in physics and in the field of quantum information, are familiar with the concept of a statistical mixture as introduced by von Neumann, and with t…