Single-site addressing of ultracold atoms beyond the diffraction limit via position dependent adiabatic passage

Abstract

We propose a single-site addressing implementation based on the sub-wavelength localization via adiabatic passage (SLAP) technique. We consider a sample of ultracold neutral atoms loaded into a two-dimensional optical lattice with one atom per site. Each atom is modeled by a three-level Λ-system in interaction with a pump and a Stokes laser pulse. Using a pump field with a node in its spatial profile, the atoms at all sites are transferred from one ground state of the system to the other via stimulated Raman adiabatic passage, except the one at the position of the node that remains in the initial ground state. This technique allows for the preparation, manipulation, and detection of atoms with a spatial resolution better than the diffraction limit, which either relaxes the requirements on the optical setup used or extends the achievable spatial resolution to lattice spacings smaller than accessible to date. In comparison to techniques based on coherent population trapping, SLAP gives a higher addressing resolution and has additional advantages such as robustness against parameter variations, coherence of the transfer process, and the absence of photon induced recoil. Additionally, the advantages of our proposal with respect to adiabatic spin-flip techniques are highlighted. Analytic expressions for the achievable addressing resolution and efficiency are derived and compared to numerical simulations for Rb-87 atoms in state-of-the-art optical lattices.

arXiv comment7 pages, 4 figures

References in corpus (21)

• Many-Body Physics with Ultracold Gases
• A quantum gas microscope - detecting single atoms in a Hubbard regime optical lattice
• Single-Atom Resolved Fluorescence Imaging of an Atomic Mott Insulator
• The cold atom Hubbard toolbox
• Probing the Superfluid to Mott Insulator Transition at the Single Atom Level
• Single-Spin Addressing in an Atomic Mott Insulator
• Quantum Logic Gates in Optical Lattices
• Observation of Correlated Particle-Hole Pairs and String Order in Low-Dimensional Mott Insulators
• A neutral atom quantum register
• Microoptical Realization of Arrays of Selectively Addressable Dipole Traps: A Scalable Configuration for Quantum Computation with Atomic Qubits
• Subwavelength atom localization via amplitude and phase control of the absorption spectrum
• Extreme sub-wavelength atom localization via coherent population trapping
• Holographic generation of micro-trap arrays for single atoms
• Experimental demonstration of single-site addressability in a two-dimensional optical lattice
• Coherent Quantum Optical Control with Subwavelength Resolution
• Atom trapping in an interferometrically generated bottle beam trap
• Nearest-Neighbor Detection of Atoms in a 1D Optical Lattice by Fluorescence Imaging
• Manipulation of Single Neutral Atoms in Optical Lattices
• Coherent Patterning of Matter Waves with Subwavelength Localization
• Addressing individual atoms in optical lattices with standing-wave driving fields
• Reconfigurable, site-selective manipulation of atomic quantum systems in two-dimensional arrays of dipole traps

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• Dark-State Optical Potential Barriers with Nanoscale Spacing
• Coherent optical nano-tweezers for ultra-cold atoms
• Individual Addressing in Quantum Computation through Spatial Refocusing
• Nanoscale resolution for fluorescence microscopy via adiabatic passage
• Optical focusing of Bose-Einstein condensates