Initial Conditions and Entanglement Sudden Death
arXiv:1209.3005 · doi:10.1016/j.physleta.2012.08.007
Abstract
We report results bearing on the behavior of non-local decoherence and its potential for being managed or even controlled. The decoherence process known as entanglement sudden death (ESD) can drive prepared entanglement to zero at the same time that local coherences and fidelity remain non-zero. For a generic ESD-susceptible Bell superposition state, we provide rules restricting the occurrence and timing of ESD, amounting to management tools over a continuous variation of initial conditions. These depend on only three parameters: initial purity, entanglement and excitation. Knowledge or control of initial phases is not needed.
5 pages
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Cited by in corpus (6)
- Sensitivity of the decay of entanglement of quantum dot spin qubits to the magnetic field
- Single and double changes of Entanglement
- Wigner distribution, nonclassicality and decoherence of generalized and reciprocal binomial states
- Effectiveness of Depolarizing noise in causing sudden death of entanglement
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