Carrier-free Raman manipulation of trapped neutral atoms
arXiv:1406.2047 · doi:10.1088/1367-2630/16/11/113042
Abstract
We experimentally realize an enhanced Raman control scheme for neutral atoms that features an intrinsic suppression of the two-photon carrier transition, but retains the sidebands which couple to the external degrees of freedom of the trapped atoms. This is achieved by trapping the atom at the node of a blue detuned standing wave dipole trap, that acts as one field for the two-photon Raman coupling. The improved ratio between cooling and heating processes in this configuration enables a five times lower fundamental temperature limit for resolved sideband cooling. We apply this method to perform Raman cooling to the two-dimensional vibrational ground state and to coherently manipulate the atomic motion. The presented scheme requires minimal additional resources and can be applied to experiments with challenging optical access, as we demonstrate by our implementation for atoms strongly coupled to an optical cavity.
arXiv comment12 pages, 5 figures
References in corpus (26)
- The Quantum Internet
- Quantum phase transition from a superfluid to a Mott insulator in a gas of ultracold atoms
- Observation of Rydberg blockade between two atoms
- An Elementary Quantum Network of Single Atoms in Optical Cavities
- Observation of collective excitation of two individual atoms in the Rydberg blockade regime
- Nanophotonic quantum phase switch with a single atom
- Observation of the Vacuum-Rabi Spectrum for One Trapped Atom
- Cavity cooling of a single atom
- Single-atom trapping in holographic 2D arrays of microtraps with arbitrary geometries
- A neutral atom quantum register
- Cooling a single atom in an optical tweezer to its quantum ground state
- Colloquium: Physics of optical lattice clocks
- Tunable Cavity Optomechanics with Ultracold Atoms
- Coherence and Raman sideband cooling of a single atom in an optical tweezer
- Cooling to the Ground State of Axial Motion for One Atom Strongly Coupled to an Optical Cavity
- Optically detecting the quantization of collective atomic motion
- Ground-State Cooling of a Single Atom at the Center of an Optical Cavity
- Lossless State Detection of Single Neutral Atoms
- Free-space lossless state-detection of a single trapped atom
- Single-Atom Addressing in Microtraps for Quantum-State Engineering using Rydberg Atoms
- Atomic Fock State Preparation Using Rydberg Blockade
- A two-dimensional lattice of blue detuned atom traps using a projected Gaussian beam array
- Nondestructive Fluorescent State Detection of Single Neutral Atom Qubits
- Controlled insertion and retrieval of atoms coupled to a high-finesse optical resonator
- Coherent Transport of Atomic Quantum States in a Scalable Shift Register
- Cooling the motion of a trapped atom with a cavity field
Cited by in corpus (7)
- Cavity-Modified Collective Rayleigh Scattering of Two Atoms
- Atomic Bell measurement via two-photon interactions
- Non-adiabatic Storage of Short Light Pulses in an Atom-Cavity System
- Ground-State Cooling of a Single Atom in a High-Bandwidth Cavity
- Raman Imaging of Atoms Inside a High-bandwidth Cavity
- Increased Dimensionality of Raman Cooling in a Slightly Nonorthogonal Optical Lattice
- Tunable transverse spin-motion coupling for quantum information processing