Realization of an optimally distinguishable multiphoton quantum superposition

Autor: Fabio Sciarrino, Veronica Secondi, Francesco De Martini
Rok vydání: 2005
Předmět:
Zdroj: Physical review letters. 95(24)
ISSN: 0031-9007
Popis: We report the realization of an entangled quantum superposition of $M\ensuremath{\sim}12$ photons by multiple universal cloning of a single-photon qubit via the high gain, quantum-injected optical parametric amplification. The system has been found extremely resilient to decoherence. By quantum tomography, the nonseparability and the quantum superposition are demonstrated for the mesoscopic output state of the dynamic ``closed system.''
Databáze: OpenAIRE
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