A scheme for entanglement extraction from a solid

Details A scheme for entanglement extraction from a solid A scheme for entanglement extraction from a solid

2005-05-16

arxiv.org/abs/quant-ph/0505107v2

New. J. Phys. 8, 95 (2006)

Physics

Quantum Physics

10 pages, 3 figures, published version

Scientific paper

10.1088/1367-2630/8/6/095

Some thermodynamical properties of solids, such as heat capacity and magnetic susceptibility, have recently been shown to be linked to the amount of entanglement in a solid. However this entanglement may appear a mere mathematical artifact of the typical symmetrization procedure of many-body wave function in solid state physics. Here we show that this entanglement is physical demonstrating the principles of its extraction from a typical solid state system by scattering two particles off the system. Moreover we show how to simulate this process using present-day optical lattices technology. This demonstrates not only that entanglement exists in solids but also that it can be used for quantum information processing or for test of Bell's inequalities.

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