Quantum computation and quantum information
Quantum computation and quantum information
Modulated entanglement evolution via correlated noises
Quantum Information Processing
Normalization procedure for relaxation studies in NMR quantum information processing
Quantum Information Processing
Entanglement and purity loss for the system of two 2-level atoms in the presence of the Stark shift
Quantum Information Processing
Universality of sudden death of entanglement
Quantum Information & Computation
A useful strong lower bound on two-qubit concurrence
Quantum Information Processing
Quantum Information Processing
Stationary quantum correlations in Tavis---Cumming model induced by continuous dephasing process
Quantum Information Processing
Quantum coding in non-inertial frames
Quantum Information Processing
Multipartite concurrence for $$X$$X states under decoherence
Quantum Information Processing
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We examine a class of bipartite mixed states which we call X states and report several analytic results related to the occurrence of early-stage decoherence or so-called entanglement sudden death (ESD) under time evolution in the presence of common types of environmental noise. Avoidance of sudden death by application of purely local operations is shown to be feasible in some cases.