Decoherence by a chaotic many-spin bath
نویسندگان
چکیده
منابع مشابه
Spin bath decoherence of quantum entanglement
We study an analytically solvable model for decoherence of a two spin system embedded in a large spin environment. As a measure of entanglement, we evaluate the concurrence for the Bell states (Einstein–Podolsky–Rosen pairs). We find that while for two separate spin baths all four Bell states lose their coherence with the same time dependence, for a common spin bath, two of the states decay fas...
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S. J. Balian,1 Gary Wolfowicz,2,3 John J. L. Morton,2,4 and T. S. Monteiro1,* 1Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, United Kingdom 2London Centre for Nanotechnology, University College London, London WC1H 0AH, United Kingdom 3Department of Materials, Oxford University, Oxford OX1 3PH, United Kingdom 4Department of Electronic and Electric...
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ژورنال
عنوان ژورنال: Physical Review E
سال: 2005
ISSN: 1539-3755,1550-2376
DOI: 10.1103/physreve.72.026225