Laser control of ultracold molecule formation: The case of RbSr

Abstract

We have studied the formation of ultracold RbSr molecules with laser pulses. After discussing the advantages of the Mott insulator phase for the control with pulses, we present two classes of strategies. The first class involves two electronic states. Two extensions of stimulated Raman adiabatic passage (STIRAP) for multi-level transitions are used : alternating STIRAP (A-STIRAP) and straddle STIRAP (S-STIRAP). Both transfer dynamics are modeled and compared. The second class of strategies involves only the electronic ground state and uses infrared (IR)/TeraHertz (THz) pulses. The chemical bond is first created by the application of a THz chirped pulse or $\pi$-pulse. Subsequently, the molecules are transferred to their ro-vibrational ground state using IR pulses. For this last step, different optimized pulse sequences through optimal control techniques, have been studied. The relative merits of these strategies in terms of efficiency and robustness are discussed within the experimental feasibility criteria of present laser technology.

References in corpus (46)

• Feshbach Resonances in Ultracold Gases
• Quantum Simulation
• Quantum computation with trapped polar molecules
• A toolbox for lattice spin models with polar molecules
• Order of Magnitude Smaller Limit on the Electric Dipole Moment of the Electron
• Control of quantum phenomena: Past, present, and future
• Realizing a lattice spin model with polar molecules
• Stimulated Raman adiabatic passage in physics, chemistry and beyond
• Atom--Molecule Coherence in a Bose-Einstein Condensate
• Cold Molecule Spectroscopy for Constraining the Evolution of the Fine Structure Constant
• Quantum gas of rovibronic ground-state molecules in an optical lattice
• Ultracold heteronuclear molecules in a 3D optical lattice
• Schemes for robust quantum computation with polar molecules
• Molecules of Fermionic Atoms in an Optical Lattice
• Building one molecule from a reservoir of two atoms
• Quantum magnetism with multicomponent polar molecules in an optical lattice
• Creation of a low-entropy quantum gas of polar molecules in an optical lattice
• Coherent optical transfer of Feshbach molecules to a lower vibrational state
• Long-lived Feshbach molecules in a 3D optical lattice
• Creation of a dipolar superfluid in optical lattices
• Production Efficiency of Ultracold Feshbach Molecules in Bosonic and Fermionic Systems
• Creation of ultracold Sr2 molecules in the electronic ground state
• Preparation of a quantum state with one molecule at each site of an optical lattice
• Photoassociation of cold atoms with chirped laser pulses: time-dependent calculations and analysis of the adiabatic transfer within a two-state model
• A search for varying fundamental constants using Hz-level frequency measurements of cold CH molecules
• Observation of Feshbach resonances between alkali and closed-shell atoms
• Probing weak force induced parity violation by high resolution mid-infrared molecular spectroscopy
• Prospects for Quantum Computing with an Array of Ultracold Polar Paramagnetic Molecules
• Quantum Engineering of a Low-Entropy Gas of Heteronuclear Bosonic Molecules in an Optical Lattice
• Molecular assembly of ground state cooled single atoms
• Implementation of Quantum Logic Gates Using Polar Molecules in Pendular States
• Doublon dynamics and polar molecule production in an optical lattice
• Heteronuclear molecules in an optical lattice: Theory and experiment
• Formation of ultracold SrYb molecules in an optical lattice by photoassociation spectroscopy: theoretical prospects
• Efficient production of long-lived ultracold Sr${}_2$ molecules
• Ground and excited state properties of the polar and paramagnetic RbSr molecule: a comparative study
• Ultracold chemistry with alkali-metal-rare-earth molecules
• Toward scalable information processing with ultracold polar molecules in an electric field: a numerical investigation
• Exact theoretical description of two ultracold atoms in a single site of a 3D optical lattice using realistic interatomic interaction potentials
• Improving the efficiency of ultracold dipolar molecule formation by first loading onto an optical lattice
• Theoretical description of two ultracold atoms in finite 3D optical lattices using realistic interatomic interaction potentials
• Prospects for making polar molecules with microwave fields
• Proposal for the formation of ultracold deeply-bound RbSr dipolar molecules by all-optical methods
• Influence of a tight isotropic harmonic trap on photoassociation in ultracold homonuclear alkali gases
• Laser-Assisted Self-Induced Feshbach resonance for ultracold polar molecule formation
• Directional properties of polar paramagnetic molecules subject to congruent electric, magnetic and optical fields

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