Laser Control of Singlet-Pairing Process in an Ultracold Spinor Mixture

Abstract

In the mixture of ultracold spin-1 atoms of two different species A and B (e.g., ${}^{23}$Na (A) and ${}^{87}$Rb (B)), inter-species singlet-pairing process ${\mathrm{A}}_{+1}+{\mathrm{B}}_{-1}\rightleftharpoons {\mathrm{A}}_{-1}+{\mathrm{B}}_{+1}$, can be induced by the spin-dependent inter-atomic interaction, where subscript $\pm 1$ denotes the magnetic quantum number. Nevertheless, one cannot isolate this process from other spin-changing processes by tuning the bias real magnetic field. As a result, so far the singlet-pairing process have not been clearly observed in the experiments, and the measurement of the corresponding interaction strength becomes difficult. In this work we propose to control the singlet-pairing process via combining the real magnetic field and a laser-induced species-dependent synthetic magnetic field. With our approach one can significantly enhance this process and simultaneously supperess all other spin-changing processes. We illustrate our approach for both a confined two-atom system and a binary mixture of spinor Bose-Einstein condensates. Our control scheme is helpful for the precise measurement of the weakly singlet-pairing interaction strength and the entanglement generation of two different atoms.

arXiv comment13 pages, 6 figures

References in corpus (49)

• Feshbach Resonances in Ultracold Gases
• Quantum metrology with nonclassical states of atomic ensembles
• Light-induced gauge fields for ultracold atoms
• Optical Confinement of a Bose-Einstein Condensate
• Spinor Bose-Einstein condensates
• Quantum spin squeezing
• All Optical Formation of an Atomic Bose-Einstein Condensate
• Quantum spins mixing in spinor Bose-Einstein condensates
• Coherent spinor dynamics in a spin-1 Bose condensate
• Spin-Nematic Squeezed Vacuum in a Quantum Gas
• An Optical Tweezer Array of Ultracold Molecules
• Realizing a scalable building block of a U(1) gauge theory with cold atomic mixtures
• Deterministic entanglement generation from driving through quantum phase transitions
• High-Resolution Magnetometry with a Spinor Bose-Einstein Condensate
• Building one molecule from a reservoir of two atoms
• Quantum-Enhanced Sensing Based on Time Reversal of Nonlinear Dynamics
• Coherent spin mixing dynamics in a spin-1 atomic condensate
• Observation of an orbital interaction-induced Feshbach resonance in 173-Yb
• Spinor Dynamics in an Antiferromagnetic Spin-1 Condensate
• On the single mode approximation in spinor-1 atomic condensate
• Feshbach spectroscopy and analysis of the interaction potentials of ultracold sodium
• Beating the classical precision limit with spin-1 Dicke state of more than 10000 atoms
• Pumped-up SU(1,1) interferometry
• Synchronizing the Smallest Possible System
• Analytical solutions for the dynamics of two trapped interacting ultracold atoms
• Observation of Dynamical Quantum Phase Transition with Correspondence in Excited State Phase Diagram
• Mean field ground state of a spin-1 condensate in a magnetic field
• Observation of quantum phase synchronization in spin-1 atoms
• Evolution of a spinor condensate: coherent dynamics, dephasing and revivals
• Spin-mixing Interferometry with Bose-Einstein Condensates
• A double species ${}^{23}$Na and ${}^{87}$Rb Bose-Einstein condensate with tunable miscibility via an interspecies Feshbach resonance
• Frequency-dependent polarizabilities of alkali atoms from ultraviolet through infrared spectral regions
• Observation of Feshbach resonances between ultracold Na and Rb atoms
• Coherent heteronuclear spin dynamics in an ultracold spin-1 mixture
• A binary mixture of spinor atomic Bose-Einstein condensates
• Ground States of a Mixture of Two Species of Spinor Bose Gases with Interspecies Spin Exchange
• Density Oscillations Induced by Individual Ultracold Two-Body Collisions
• A spinor Bose-Einstein condensate phase-sensitive amplifier for SU(1,1) interferometry
• Coherent Manipulation of Orbital Feshbach Molecules of Two-Electron Atoms
• Quantum states of a binary mixture of spinor Bose-Einstein condensates
• Spinor Bose-Einstein Condensate Interferometer within the Undepleted Pump Approximation: Role of the Initial State
• Interspecies singlet pairing in a mixture of two spin-1 Bose condensates
• Manipulation of heteronuclear spin dynamics with microwave and vector light shift
• Quantum Interferometry with Microwave-dressed F=1 Spinor Bose-Einstein Condensates: Role of Initial States and Long Time Evolution
• Quantum spin mixing in a binary mixture of spin-1 atomic condensates
• Two types of phase diagrams for two-species Bose-Einstein condensates
• Collisional spin transfer in an atomic heteronuclear spinor Bose gas
• Resonant Spin Exchange between Heteronuclear Atoms Assisted by Periodic Driving
• Dynamical mean-field driven spinor condensate physics beyond the single-mode approximation

Cited by in corpus (1)

• Phase separation and metastability in a mixture of spin-1 and spin-2 Bose-Einstein condensates