Entanglement measurement with discrete multiple coin quantum walks
arXiv:quant-ph/0507184 · doi:10.1088/0305-4470/38/42/008
Abstract
Within a special multi-coin quantum walk scheme we analyze the effect of the entanglement of the initial coin state. For states with a special entanglement structure it is shown that this entanglement can be meausured with the mean value of the walk, which depends on the i-concurrence of the initial coin state. Further on the entanglement evolution is investigated and it is shown that the symmetry of the probability distribution is reflected by the symmetry of the entanglement distribution.
9 pages, IOP style
References in corpus (9)
- Entanglement of Formation of an Arbitrary State of Two Qubits
- Entanglement of a Pair of Quantum Bits
- Distributed Entanglement
- Quantum random walks - an introductory overview
- Universal state inversion and concurrence in arbitrary dimensions
- Global entanglement in multiparticle systems
- Quantum Walks driven by many coins
- Quantum random walks with history dependence
- Characterization of entanglement of more than two qubits with Bell inequalities and global entanglement
Cited by in corpus (7)
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- Distribution of chirality in the quantum walk: Markov process and entanglement
- Asymptotic properties of the Dirac quantum cellular automaton
- Thermodynamics of N-dimensional quantum walks
- Quantum walk on a cylinder
- Initial-state-dependent thermalization in open qubits
- Resonant quantum kicked rotor with two internal levels