Resilience to decoherence of the macroscopic quantum superpositions generated by universally covariant optimal quantum cloning
نویسندگان
چکیده
Nicolò Spagnolo,1,2 Fabio Sciarrino,1,3 and Francesco De Martini1,4,* 1Dipartimento di Fisica, Sapienza Università di Roma, piazzale Aldo Moro 5, I-00185 Roma, Italy 2Consorzio Interuniversitario per le Scienze Fisiche della Materia, piazzale Aldo Moro 5, I-00185 Roma, Italy 3Istituto Nazionale di Ottica, largo Fermi 6, I-50125 Firenze, Italy 4Accademia Nazionale dei Lincei, via della Lungara 10, I-00165 Roma, Italy (Received 26 February 2010; published 27 September 2010)
منابع مشابه
Anomalous lack of decoherence of the macroscopic quantum superpositions based on phase-covariant quantum cloning.
We show that all macroscopic quantum superpositions (MQS) based on phase-covariant quantum cloning are characterized by an anomalous high resilence to the decoherence processes. The analysis supports the results of recent MQS experiments and leads to conceive a useful conjecture regarding the realization of complex decoherence-free structures for quantum information, such as the quantum computer.
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