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arXiv · 0711.1483

Dynamical creation of bosonic Cooper-like pairs

T. Keilmann·J. J. Garcia-Ripoll
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Abstract

We propose a scheme to create a metastable state of paired bosonic atoms in an optical lattice. The most salient features of this state are that the wavefunction of each pair is a Bell state and that the pair size spans half the lattice, similar to fermionic Cooper pairs. This mesoscopic state can be created with a dynamical process that involves crossing a quantum phase transition and which is supported by the symmetries of the physical system. We characterize the final state by means of a measurable two-particle correlator that detects both the presence of the pairs and their size.

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T. Keilmann, J. J. Garcia-Ripoll. 2007-11-10. Dynamical creation of bosonic Cooper-like pairs. https://doi.org/10.1103/physrevlett.100.110406

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