Generation of Highly Resilient to Decoherence Macroscopic Quantum Superpositions via Phase-covariant Quantum Cloning
| Autor: | Fabio Sciarrino, Chiara Vitelli, Nicolò Spagnolo, Francesco De Martini |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2011 |
| Předmět: |
Physics
Macroscopic quantum superposition Quantum decoherence macroscopic quantum superposition phase-covariant cloning decoherence Hilbert space General Physics and Astronomy Quantum Physics Decoherence Phase-covariant cloning symbols.namesake Classical mechanics Quantum error correction Quantum mechanics symbols Covariant transformation Quantum cloning Quantum dissipation Quantum Coherence (physics) |
| Zdroj: | Foundations of physics 41 (2011): 492–508. doi:10.1007/s10701-010-9445-z info:cnr-pdr/source/autori:De Martini Francesco [ 1,2 ] ; Sciarrino Fabio [ 1,3 ] ; Spagnolo Nicolo [ 1,4 ] ; Vitelli Chiara [ 1,4 ]/titolo:Generation of Highly Resilient to Decoherence Macroscopic Quantum Superpositions via Phase-covariant Quantum Cloning/doi:10.1007%2Fs10701-010-9445-z/rivista:Foundations of physics/anno:2011/pagina_da:492/pagina_a:508/intervallo_pagine:492–508/volume:41 |
| DOI: | 10.1007/s10701-010-9445-z |
| Popis: | In this paper we analyze the resilience to decoherence of the Macroscopic Quantum Superpositions (MQS) generated by optimal phase-covariant quantum cloning according to two coherence criteria, both based on the concept of Bures distance in Hilbert spaces. We show that all MQS generated by this system are characterized by a high resilience to decoherence processes. This analysis is supported by the results of recent MQS experiments of N=3.5x10(4) particles. |
| Databáze: | OpenAIRE |
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