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Letter
Nature Physics 4, 99–102 (1 February 2008) | doi:10.1038/nphys885
Evolution equation for quantum entanglement
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Abstract
Quantum information technology largely relies on a precious and fragile resource, quantum entanglement, a highly non-trivial manifestation of the coherent superposition of states of composite quantum systems. However, our knowledge of the time evolution of this resource under realistic conditions—that is, when corrupted by environment-induced decoherence—is so far limited, and general statements on entanglement dynamics in open systems are scarce.
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