Fidelity and Entanglement of a Spatially Extended Linear Three-Qubit Register

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dc.creatorDoll, Roland
dc.creatorWubs, Martijn
dc.creatorKohler, Sigmund
dc.creatorHanggi, Peter
dc.date2008-02-13
dc.date.accessioned2026-07-07T09:56:57Z
dc.date.available2026-07-07T09:56:57Z
dc.descriptionWe study decoherence of a three-qubit array coupled to substrate phonons. Assuming an initial three-qubit entangled state that would be decoherence-free for identical qubit positions, allows us to focus on non-Markovian effects of the inevitable spatial qubit separation. It turns out that the coherence is most affected when the qubits are regularly spaced. Moreover, we find that up to a constant scaling factor, two-qubit entanglement is not influenced by the presence f the third qubit, even though all qubits interact via the phonon field.
dc.description4 pages, 3 figures
dc.identifierhttps://arxiv.org/abs/0802.1930
dc.identifierhttp://arxiv.org/abs/0802.1930
dc.identifierInt. J. Quant. Inf. 6, 681 (2008)
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/167166
dc.subjectMesoscale and Nanoscale Physics
dc.subjectQuantum Physics
dc.titleFidelity and Entanglement of a Spatially Extended Linear Three-Qubit Register
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