Anomalous lack of decoherence of the Macroscopic Quantum Superpositions based on phase-covariant Quantum Cloning

Abstract

We show that all Macroscopic Quantum Superpositions (MQS) based on phase-covariant quantum cloning are characterized by an anomalous high resilence to the de-coherence 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.

4 pages, 3 figures

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Cited by in corpus (8)

• Investigating macroscopic quantum superpositions and the quantum-to-classical transition by optical parametric amplification
• Enhanced Resolution of Lossy Interferometry by Coherent Amplification of Single Photons
• Entanglement criteria for microscopic-macroscopic systems
• Random Matrix Ensembles For Many-Body Quantum Systems
• Measurement-induced quantum operations on multiphoton states
• Quantum superpositions of flow states on a ring
• Anomalous resilient to decoherence macroscopic quantum superpositions generated by universally covariant optimal quantum cloning
• Entanglement and Quantum Superposition of a Macroscopic - Macroscopic system