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Keywords
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pseudo-Hermitian, entanglement, pseudo-fermionic coherent state, pseudo-Bell state, pseudo-
GHZ state, pseudo-Werner state
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Abstract
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We study the entanglement of multiqubit fermionic pseudo-Hermitian coherent states (FPHCSs) described
by anticommutative Grassmann numbers. We introduce pseudo-Hermitian versions of well-known maximally
entangled pure states, such as Bell, GHZ, Werner, and biseparable states, by integrating over the
tensor products of FPHCSs with a suitable choice of Grassmannian weight functions. As an illustration, we
apply the proposed method to the tensor product of two- and three-qubit pseudo-Hermitian systems. For
a quantitative characteristic of entanglement of such states, we use a measure of entanglement determined
by the corresponding concurrence function and average entropy.
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