Coherent-state qubits: Entanglement and decoherence

J. K. Asbóth, P. Adam, M. Koniorczyk, J. Janszky

Research output: Article

12 Citations (Scopus)


Arbitrary superpositions of any two optical coherent states are investigated as realizations of qubits for quantum information processing. Decoherence of these coherent-state qubits is described in detail, and visualized using a suitable adaptive Bloch-sphere. The entanglement that can be created by a beam splitter from these states is quantified, and its decoherence behavior is analyzed.

Original languageEnglish
Pages (from-to)403-410
Number of pages8
JournalEuropean Physical Journal D
Issue number3
Publication statusPublished - szept. 1 2004


ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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