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- Istituto Nazionale di Fisica Nucleare, Sezione di BariIT45 papers
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8 papers · 1 filter
Quantum Theory of particles and fields as an extension of a probabilistic variational approach to classical mechanics and classical field theory. I
Matteo Villani
A theoretical scheme, based on a probabilistic generalization of the Hamilton's principle, is elaborated to obtain an unified description of more general dynamical behaviors determ…
Entanglement of Electrons Field-Emitted from a Superconductor
Kazuya Yuasa, Paolo Facchi, Rosario Fazio +4
Under appropriate circumstances the electrons emitted from a superconducting tip can be entangled. We analyze these nonlocal correlations by studying the coincidences of the field-…
Entanglement of two blocks of spins in the critical Ising model
P. Facchi, G. Florio, C. Invernizzi +1
We compute the entropy of entanglement of two blocks of L spins at a distance d in the ground state of an Ising chain in an external transverse magnetic field. We numerically study…
Bang-Bang control of a qubit coupled to a quantum critical spin bath
Davide Rossini, Paolo Facchi, Rosario Fazio +5
We analytically and numerically study the effects of pulsed control on the decoherence of a qubit coupled to a quantum spin bath. When the environment is critical, decoherence is f…
Maximally multipartite entangled states
Paolo Facchi, Giuseppe Florio, Giorgio Parisi +1
We introduce the notion of maximally multipartite entangled states of n qubits as a generalization of the bipartite case. These pure states have a bipartite entanglement that does…
Lateral Effects in Fermion Antibunching
K. Yuasa, P. Facchi, H. Nakazato +3
Lateral effects are analyzed in the antibunching of a beam of free non-interacting fermions. The emission of particles from a source is dynamically described in a 3D full quantum f…