Coherent shift of localized bound pair in Bose Hubbard model

Abstract

Based on the exact results obtained by Bethe ansatz, we demonstrate the existence of stable bound pair (BP) wave packet in Bose Hubbard model with arbitrary on-site interaction U. In large-U regime, it is found that an incoming single-particle (SP) can coherently pass through a BP wave packet and leave a coherent shift in the position of it. This suggests a simple scheme for constructing a BP charge qubit to realize a quantum switch, which is capable of controlling the coherent transport of one and only one photon in a one-dimensional waveguide.

5 pages, 3 figures

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Cited by in corpus (23)

• Ultracold bosons with short-range interaction in regular optical lattices
• Three-body bound states in a lattice
• Lattice two-body problem with arbitrary finite range interactions
• Scaling behavior and phase diagram of a PT-symmetric non-Hermitian Bose-Hubbard system
• Quasi-soliton scattering in quantum spin chains
• Repulsive to attractive interaction quenches of 1D Bose gas in a harmonic trap
• Generation of GHZ and W states for stationary qubits in spin network via resonance scattering
• Sudden death of particle-pair Bloch oscillation and unidirectional propagation in a one-dimensional driven optical lattice
• Preparation of stable excited states in an optical lattice via sudden quantum quench
• Paired states of interacting electrons in a two dimensional lattice
• Perfect coherent shift of bound pairs in strongly correlated systems
• Fast transfer and efficient coherent separation of bound cluster in the extended Hubbard model
• Propagation and jamming dynamics in Heisenberg spin ladders
• Two-doublon Bloch oscillations in the mass-imbalanced extended Fermi-Hubbard model
• Metastable electron-pair states in a two-dimensional crystal
• Flat band and $\eta$-pairing states in one-dimensional Moiré Hubbard model
• Scattering tightly bound dimers off a scattering potential
• Equivalent spin-orbit interaction in two-polariton Jaynes-Cummings-Hubbard model
• Quench field sensitivity of two-particle correlation in a Hubbard model
• EPR pairing dynamics in Hubbard model with resonant $U$
• Topological quantum slinky motion in resonant extended Bose-Hubbard model
• Formations of generalized Wannier-Stark ladders: Theorem and applications
• Robust states of ultra-cold bosons in tilted optical lattices