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- University of PaduaIT221 papers
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39 papers · 2 filters
Measurement-induced quantum operations on multiphoton states
Chiara Vitelli, Nicolò Spagnolo, Fabio Sciarrino +1
We investigate how multiphoton quantum states obtained through optical parametric amplification can be manipulated by performing a measurement on a small portion of the output ligh…
Non-Gaussianity of quantum states: an experimental test on single-photon added coherent states
Marco Barbieri, Nicolò Spagnolo, Marco G. Genoni +5
Non Gaussian states and processes are useful resources in quantum information with continuous variables. An experimentally accessible criterion has been proposed to measure the deg…
Hybrid methods for witnessing entanglement in a microscopic-macroscopic system
Nicolò Spagnolo, Chiara Vitelli, Mauro Paternostro +2
We propose a hybrid approach to the experimental assessment of the genuine quantum features of a general system consisting of microscopic and macroscopic parts. We infer entangleme…
Cross-Phase Modulation and Population Redistribution in a Periodic Tripod Medium
K. Slowik, A. Raczynski, J. Zaremba +3
The cross-Kerr effect is studied for two pulses propagating in an atomic medium in a tripod configuration, dressed by a strong standing wave coupling beam. Nonlinear phase shifts f…
Loss of polarization entanglement in a fiber-optic system with polarization mode dispersion in one optical path
Misha Brodsky, Elizabeth C. George, Cristian Antonelli +1
We characterize theoretically and experimentally the degradation of polarization entanglement in a fiber-optic entanglement distribution system where one of the optical fibers is e…
Entanglement Dynamics of Two Independent Cavity-Embedded Quantum Dots
Bruno Bellomo, Giuseppe Compagno, Rosario Lo Franco +2
We investigate the dynamical behavior of entanglement in a system made by two solid-state emitters, as two quantum dots, embedded in two separated micro-cavities. In these solid-st…