4 papers · 1 filter
Operational criterion for Wigner function negativity
Paolo Solinas, Beatrice Donelli, Stefano Gherardini
We introduce an operational criterion to identify Wigner function (WF) negativity for an arbitrary quantum state within the framework of quantum non-demolition measurements. This c…
Quantumness certification via non-demolition measurements
Paolo Solinas, Stefano Gherardini
The fundamental question of when a static or dynamic system should be deemed intrinsically quantum remains a challenge to address in absolute terms. In this regard, a critical requ…
Resource reduction for variational quantum algorithms by non-demolition measurements
Dario Melegari, Rabia Abdul Razaq, Giovanni Minuto +1
We present a comparative study of two implementations of a variational quantum algorithm aimed at minimizing the energy of a complex quantum system. In one implementation, we extra…
Quantum simulations of macrorealism violation via the QNDM protocol
D. Melegari, M. Cardi, P. Solinas
The Leggett-Garg inequalities have been proposed to identify the quantum behaviour of a system; specifically, the violation of macrorealism. They are usually implemented by perform…