Fast transfer and efficient coherent separation of bound cluster in the extended Hubbard model

Abstract

We study the formation and dynamics of the bound pair (BP) and bound triple (BT) in strongly correlated extended Hubbard model for both Bose and Fermi systems. We find that the bandwidths of the BP and BT gain significantly when the on-site and nearest-neighbor interaction strengths reach the corresponding resonant points. This allows the fast transfer and efficient coherent separation of the BP and BT. The exact result shows that the success probability of the coherent separation is unity in the optimal system. In Fermi system, this finding can be applied to create distant entanglement without the need of temporal control and measurement process.

6 pages, 3 figures

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• Quench field sensitivity of two-particle correlation in a Hubbard model
• Topological quantum slinky motion in resonant extended Bose-Hubbard model
• Field induced conducting state in Mott insulator
• Formations of generalized Wannier-Stark ladders: Theorem and applications