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Decoherence of a Macroscopic Quantum Superposition
Francesco De Martini, Fabio Sciarrino, Nicolo' Spagnolo
The high resilience to de-coherence shown by a recently discovered Macroscopic Quantum Superposition (MQS) involving a number of photons in excess of 5 x 10^4 motivates the present…
Polarization preserving ultra fast optical shutter for quantum information processing
Nicolo' Spagnolo, Chiara Vitelli, Sandro Giacomini +2
We present the realization of a ultra fast shutter for optical fields, which allows to preserve a generic polarization state, based on a self-stabilized interferometer. It exhibits…
Amplification of polarization NOON states
Chiara Vitelli, Nicolo' Spagnolo, Fabio Sciarrino +1
NOON states are path entangled states which can be exploited to enhance phase resolution in interferometric measurements. In the present paper we analyze the quantum states obtaine…