Entangled coherent states for systems with SU(2) and SU(1,1) symmetries

Xiaoguang Wang, Barry C. Sanders, Shao-hua Pan

    Research output: Contribution to journalArticlepeer-review

    98 Citations (Scopus)

    Abstract

    Entangled SU(2) and SU(1,1) coherent states are developed as superpositions of multiparticle SU(2) and SU(1,1) coherent states. As a special example of entangled SU(2) coherent states, entangled binomial states are introduced and these entangled binomial states enable the contraction from entangled SU(2) coherent states to entangled harmonic oscillator coherent states. Entangled SU(2) coherent states are discussed in the context of pairs of qubits. We also introduce the entangled negative binomial states and entangled squeezed states as examples of entangled SU(1,1) coherent states. A method for generating the entangled SU(2) and SU(1,1) coherent states is discussed and degrees of entanglement calculated. Two types of SU(1,1) coherent states are discussed in each case: Perelomov coherent states and Barut-Girardello coherent states.
    Original languageEnglish
    Pages (from-to)7451-7467
    Number of pages17
    JournalJournal of Physics A: Mathematical and General
    Volume33
    Issue number41
    DOIs
    Publication statusPublished - 2000

    Fingerprint

    Dive into the research topics of 'Entangled coherent states for systems with SU(2) and SU(1,1) symmetries'. Together they form a unique fingerprint.

    Cite this