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9 papers · 2 filters
Hardy's proof of nonlocality in the presence of noise
GianCarlo Ghirardi, Luca Marinatto
We extend the validity of Hardy's nonlocality without inequalities proof to cover the case of special one-parameter classes of non-pure statistical operators. These mixed states ar…
Slipped non-Positive Reduced Dynamics and Entanglement
F. Benatti, R. Floreanini, S. Breteaux
Non-positive Markov approximations are sometimes used to describe the dynamics of qubits in weak interaction with suitable environments; the appearance of negative probabilities is…
Asymptotic Entanglement of Two Independent Systems in a Common Bath
F. Benatti, R. Floreanini
Two, non-interacting systems immersed in a common bath and evolving with a Markovian, completely positive dynamics can become initially entangled via a purely noisy mechanism. Rema…
Inverse kinetic theory for quantum hydrodynamic equations
Massimo Tessarotto, Marco Ellero, Piero Nicolini
We propose a solution for the inverse kinetic theory for quantum hydrodynamic equations associated to the non-relativistic Schrödinger equation. It is shown that an inverse kinetic…
New experimental limit on the Pauli Exclusion Principle violation by electrons
The VIP Collaboration
The Pauli Exclusion Principle (PEP) is one of the basic principles of modern physics and, even if there are no compelling reasons to doubt its validity, it is still debated today b…
Hardy's criterion of nonlocality for mixed states
GianCarlo Ghirardi, Luca Marinatto
We generalize Hardy's proof of nonlocality to the case of bipartite mixed statistical operators, and we exhibit a necessary condition which has to be satisfied by any given mixed s…