Maltese cross coupling to individual cold atoms in free space

Abstract

We report on the simultaneous observation from four directions of the fluorescence of single ${}^{87}$Rb atoms trapped at the common focus of four high numerical aperture ($\mathrm{NA}=0.5$) aspheric lenses. We use an interferometrically-guided pick-and-place technique to precisely and stably position the lenses along the four cardinal directions with their foci at a single central point. The geometry gives right angle access to a single quantum emitter, and will enable new trapping, excitation, and collection methods. The fluorescence signals indicate both sub-Poissonian atom number statistics and photon anti-bunching, showing suitability for cold atom quantum optics.

References in corpus (28)

• Probing many-body dynamics on a 51-atom quantum simulator
• Fast quantum gates for neutral atoms
• Observation of Rydberg blockade between two atoms
• Observation of collective excitation of two individual atoms in the Rydberg blockade regime
• Realizing quantum Ising models in tunable two-dimensional arrays of single Rydberg atoms
• Quantum computing with atomic qubits and Rydberg interactions: Progress and challenges
• Synthetic three-dimensional atomic structures assembled atom by atom
• Subradiance in a Large Cloud of Cold Atoms
• Strong interaction between light and a single trapped atom without a cavity
• Hong-Ou-Mandel atom interferometry in tunnel-coupled optical tweezers
• Topological Quantum Optics in Two-Dimensional Atomic Arrays
• Ion traps with enhanced optical and physical access
• Two-dimensional transport and transfer of a single atomic qubit in optical tweezers
• Energy distribution and cooling of a single atom in an optical tweezer
• Perfect excitation of a matter qubit by a single photon in free space
• Coherent scattering of near-resonant light by a Dense Microscopic Cold Atomic cloud
• Diffraction limited optics for single atom manipulation
• Phase shift of a weak coherent beam induced by a single atom
• Interfacing light and single atoms with a lens
• Strong Purcell effect on a neutral atom trapped in an open fiber cavity
• Excitation of a single atom with exponentially rising light pulses
• Electromagnetically Induced Transparency from a Single Atom in Free Space
• Time-resolved Scattering of a Single Photon by a Single Atom
• Subradiance and radiation trapping in cold atoms
• Imaging a single atom in a time-of-flight experiment
• Time reversal symmetry in optics
• Nonlinear photon-atom coupling with 4Pi microscopy
• Multi-second magnetic coherence in a single domain spinor Bose-Einstein condensate

Cited by in corpus (11)

• Storage and release of subradiant excitations in a dense atomic cloud
• Collective shift in resonant light scattering by a one-dimensional atomic chain
• Nanoscale continuous quantum light sources based on driven dipole emitter arrays
• Fast and efficient preparation of 1D chains and dense cold atomic clouds
• Engineering analog quantum chemistry Hamiltonians using cold atoms in optical lattices
• Narrowband photon pairs with independent frequency tuning for quantum light-matter interactions
• Precise, super-resolving intensity measurement by quantum jump spectroscopy of a single neutral atom
• Strong quantum correlations of light emitted by a single atom in free space
• Quantum Molecular Robots
• Telling different unravelings apart via nonlinear quantum-trajectory averages
• Quantum jump photodetector for narrowband photon counting with a single atom