Experimental Activation of Bound Entanglement

Details Experimental Activation of Bound Entanglement Experimental Activation of Bound Entanglement

2011-11-26

arxiv.org/abs/1111.6170v1

Physics

Quantum Physics

6pages, 6figures

Scientific paper

Entanglement is one of the essential resources in quantum information and communication technology (QICT). The entanglement thus far explored and applied to QICT has been pure and distillable entanglement. Yet there is another type of entanglement, called 'bound entanglement', which is not distillable by local operations and classical communication (LOCC). We demonstrate the experimental 'activation' of the bound entanglement held in the four-qubit Smolin state, unleashing its immanent entanglement in distillable form, with the help of auxiliary two-qubit entanglement and LOCC. We anticipate that it opens the way to a new class of QICT applications that utilize more general classes of entanglement than ever, including bound entanglement.

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