Entangled quantum tunneling of two-component Bose-Einstein condensates

Abstract

We examine the quantum tunneling process in Bose condensates of two interacting species trapped in a double well configuration. We discover the condition under which particles of different species can tunnel as pairs through the potential barrier between two wells in opposition directions. This novel form of tunneling is due to the interspecies interaction that eliminates the self- trapping effect. The correlated motion of tunneling atoms leads to the generation of quantum entanglement between two macroscopically coherent systems.

4 pages, 3 figures

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• Quantum spin squeezing
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• Weakly linked binary mixtures of F=1 87-Rb Bose-Einstein condensates
• Two-mode entanglement in two-component Bose-Einstein condensates
• Spinor BECs in a double-well: population transfer and Josephson oscillations
• Quasi-spin Model for Macroscopic Quantum Tunnelling between Two Coupled Bose-Einstein Condensates
• N-conserving Bogoliubov vacuum of a two component Bose-Einstein condensate: Density fluctuations close to a phase separation condition
• Dynamics of a two-species Bose-Einstein condensate in a double well
• Impurity in a bosonic Josephson junction: swallowtail loops, chaos, self-trapping and the poor man's Dicke model
• Signatures of indistinguishability in bosonic many-body dynamics
• Solvable Model of a Mixture of Bose-Einstein Condensates
• Tunnelling of condensate magnetization in a double-well potential
• Precision Measurements Using Squeezed Spin States via Two-axis Counter-twisting Interactions
• Quantum properties of a binary bosonic mixture in a double well
• Generation and storage of spin squeezing via learning-assisted optimal control
• Many-particle interference in a two-component bosonic Josephson junction: an all-optical simulation
• Maximal entanglement of two spinor Bose-Einstein condensates
• Quantum-limited measurement of magnetic-field gradient with entangled atoms
• Steady-state entanglement in a double-well Bose-Einstein condensate through coupling to a superconducting resonator
• Interaction-controlled impurity transport in trapped mixtures of ultracold bosons
• Coherent control of atomic spin currents in a double well
• Correlation and entanglement of two-component Bose-Einstein condensates in a double well
• Quantum communication between trapped ions through a dissipative environment
• Dynamical stability of entanglement between spin ensembles
• Comparing entanglement and identity effects in tunnelling
• Dynamical Phase Transition of two-component Bose-Einstein condensate with nonlinear tunneling in an optomechanical cavity-mediated double-well system
• Bound state of solution of Dirac-Coulomb problem with spatially dependent mass
• Dynamics of mode entanglement induced by particle-tunneling in the extended Bose-Hubbard dimer model