Tight multipartite Bell's inequalities involving many measurement settings.

نویسندگان

  • Wiesław Laskowski
  • Tomasz Paterek
  • Marek Zukowski
  • Caslav Brukner
چکیده

We derive tight Bell's inequalities for N>2 observers involving more than two alternative measurement settings. We give a necessary and sufficient condition for a general quantum state to violate the new inequalities. The inequalities are violated by some classes of states, for which all standard Bell's inequalities with two measurement settings per observer are satisfied.

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عنوان ژورنال:
  • Physical review letters

دوره 93 20  شماره 

صفحات  -

تاریخ انتشار 2004