Separable States can be used to distribute entanglement.
نویسندگان
چکیده
We show that no entanglement is necessary to distribute entanglement; that is, two distant particles can be entangled by sending a third particle that is never entangled with the other two. Similarly, two particles can become entangled by continuous interaction with a highly mixed mediating particle that never itself becomes entangled. We also consider analogous properties of completely positive maps, in which the composition of two separable maps can create entanglement.
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عنوان ژورنال:
- Physical review letters
دوره 91 3 شماره
صفحات -
تاریخ انتشار 2003