Maximal Entanglement of Two-qubit States Constructed by Linearly Independent Coherent States

Details Maximal Entanglement of Two-qubit States Constructed by Linearly Independent Coherent States Maximal Entanglement of Two-qubit States Constructed by Linearly Independent Coherent States

2010-07-08

arxiv.org/abs/1007.1387v3

Physics

Quantum Physics

some examples added; Int J Theor Phys 2011

Scientific paper

10.1007/s10773-011-0755-5

In this paper, we find the necessary and sufficient condition for the maximal entanglement of the state, $ |\psi>=\mu|\alpha>|\beta>+\lambda|\alpha>|\delta>+ \rho|\gamma>|\beta>+\nu|\gamma>|\delta>,$ constructed by linearly independent coherent states with \emph{real parameters} when $<\alpha|\gamma>=<\beta|\delta>$. This is a further generalization of the classified nonorthogonal states discussed in Ref. Physics Letters A {\bf{291}}, 73-76 (2001).

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