Entanglement entropy of multipartite pure states

Details Entanglement entropy of multipartite pure states Entanglement entropy of multipartite pure states

2002-05-06

arxiv.org/abs/quant-ph/0205021v3

Phys. Rev. A 67, 012313 (2003)

Physics

Quantum Physics

7 pages, REVTeX, corrected some typos

Scientific paper

10.1103/PhysRevA.67.012313

Consider a system consisting of $n$ $d$-dimensional quantum particles and arbitrary pure state $\Psi$ of the whole system. Suppose we simultaneously perform complete von Neumann measurements on each particle. One can ask: what is the minimal possible value $S[\Psi]$ of the entropy of outcomes joint probability distribution? We show that $S[\Psi]$ coincides with entanglement entropy for bipartite states. We compute $S[\Psi]$ for two sample multipartite states: the hexacode state ($n=6, d=2$) and determinant states ($n=d$). The generalization of determinant states to the case $d

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