Lower bounds for decoherence

Lawrence S. Schulman

doi:10.1117/12.277663

1 July 1997 Lower bounds for decoherence

Lawrence S. Schulman

Proceedings Volume 3076, Photonic Quantum Computing; (1997) https://doi.org/10.1117/12.277663
Event: AeroSense '97, 1997, Orlando, FL, United States

Abstract

Both quantum computing and tests of certain theories of quantum measurement require tight control over entanglement of the degrees of freedom of the system with those of the environment. In particular, one wishes to avoid entanglement-induced decoherence due to the confining of the system by the macroscopic apparatus. Nonetheless, when the system interacts with its walls (treated quantum mechanically), there is an inevitable intertwining of degrees of freedom. We show that this need not lead to entanglement, hence decoherence. It will generally lead to error. The wave function optimization required to avoid decoherence is also examined.

Citation Download Citation

Lawrence S. Schulman "Lower bounds for decoherence", Proc. SPIE 3076, Photonic Quantum Computing, (1 July 1997); https://doi.org/10.1117/12.277663

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