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Showing 2008 · quant-phShow all
3 papers · 2 filters
quant-ph2008★ 6 cited
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-…
quant-ph2008★ 2 cited
Oscillations of the purity in the repeated-measurement-based generation of quantum states
B. Militello, K. Yuasa, H. Nakazato +1
Repeated observations of a quantum system interacting with another one can drive the latter toward a particular quantum state, irrespectively of its initial condition, because of a…
quant-ph2008★ 33 cited
XX model on the circle
A. De Pasquale, G. Costantini, P. Facchi +3
We diagonalize the XX model with a finite number of spins and periodic boundary conditions. We solve for the ground state, focus on the rapidity of the convergence to the thermodyn…