Entanglement versus mixedness for coupled qubits under a phase damping channel
arXiv:quant-ph/0507212 · doi:10.1103/PhysRevA.72.042320
Abstract
Quantification of entanglement against mixing is given for a system of coupled qubits under a phase damping channel. A family of pure initial joint states is defined, ranging from pure separable states to maximally entangled state. An ordering of entanglement measures is given for well defined initial state amount of entanglement.
9 pages, 2 figures. Replaced with final published version
References in corpus (14)
- Experimental quantum teleportation
- Separability Criterion for Density Matrices
- Entanglement of a Pair of Quantum Bits
- Quantifying Entanglement
- Separability criterion and inseparable mixed states with positive partial transposition
- Two-Bit Gates are Universal for Quantum Computation
- Maximal entanglement versus entropy for mixed quantum states
- Maximizing the entanglement of two mixed qubits
- Maximally entangled mixed states of two qubits
- Mixed state sensitivity of several quantum information benchmarks
- Cold Trapped Ions as Quantum Information Processors
- Decoherence in nonclassical motional states of a trapped ion
- Nonclassicality and information exchange in deterministic entanglement formation
- Characterization and quantification of symmetric Gaussian state entanglement through a local classicality criterion