Single atom in a superoscillatory optical trap
- URL: http://arxiv.org/abs/2211.00274v2
- Date: Mon, 3 Jul 2023 20:37:40 GMT
- Title: Single atom in a superoscillatory optical trap
- Authors: Hamim Mahmud Rivy, Syed A. Aljunid, Emmanuel Lassalle, Nikolay I.
Zheludev, David Wilkowski
- Abstract summary: We report trapping of single ultracold atom in an optical trap that can be continuously tuned from a standard Airy focus to a subwavelength hotspot smaller than the usual Abbe's diffraction limit.
We argue that superoscillatory trapping and continuous potential tuning offer not only a way to generate compact and tenable ensembles of trapped atoms for quantum simulators but will also be useful in single molecule quantum chemistry.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Optical tweezers have become essential tools to manipulate atoms or molecules
at a single particle level. However, using standard diffracted-limited optical
systems, the transverse size of the trap is lower bounded by the optical
wavelength, limiting the application range of optical tweezers. Here we report
trapping of single ultracold atom in an optical trap that can be continuously
tuned from a standard Airy focus to a subwavelength hotspot smaller than the
usual Abbe's diffraction limit. The hotspot was generated using the effect of
superoscillations, by the precise interference of multiple free-space coherent
waves. We argue that superoscillatory trapping and continuous potential tuning
offer not only a way to generate compact and tenable ensembles of trapped atoms
for quantum simulators but will also be useful in single molecule quantum
chemistry and the study of cooperative atom-photon interaction within
subwavelength arrays of quantum emitters.
Related papers
- Bound state of distant photons in waveguide quantum electrodynamics [137.6408511310322]
Quantum correlations between distant particles remain enigmatic since the birth of quantum mechanics.
We predict a novel kind of bound quantum state in the simplest one-dimensional setup of two interacting particles in a box.
Such states could be realized in the waveguide quantum electrodynamics platform.
arXiv Detail & Related papers (2023-03-17T09:27:02Z) - Ultratight confinement of atoms in a Rydberg empowered optical lattice [0.0]
This article presents a novel approach for creating an atomic optical lattice with a sub-wavelength spatial structure.
The potential is generated by leveraging the nonlinear optical response of three-level Rydberg-dressed atoms.
The development of these ultra-narrow trapping techniques holds great promise for applications such as Rydberg-Fermi gates, atomtronics, quantum walks, Hubbard models, and neutral-atom quantum simulation.
arXiv Detail & Related papers (2023-01-11T13:12:53Z) - State-Insensitive Trapping of Alkaline-Earth Atoms in a Nanofiber-Based
Optical Dipole Trap [0.0]
We demonstrate a state-insensitive optical dipole trap for strontium-88, an alkaline-earth atom, using the evanescent fields of a nanotapered optical fiber.
This work also lays the foundation for developing versatile and robust matter-wave atomtronic circuits over nanophotonic waveguides.
arXiv Detail & Related papers (2022-11-08T04:54:50Z) - Quantum-limited millimeter wave to optical transduction [50.663540427505616]
Long distance transmission of quantum information is a central ingredient of distributed quantum information processors.
Current approaches to transduction employ solid state links between electrical and optical domains.
We demonstrate quantum-limited transduction of millimeter-wave (mmwave) photons into optical photons using cold $85$Rb atoms as the transducer.
arXiv Detail & Related papers (2022-07-20T18:04:26Z) - Quantum density matrix theory for a laser without adiabatic elimination
of the population inversion: transition to lasing in the class-B limit [62.997667081978825]
No class-B quantum density-matrix model is available to date, capable of accurately describing coherence and photon correlations within a unified theory.
Here we carry out a density-matrix theoretical approach for generic class-B lasers, and provide closed equations for the photonic and atomic reduced density matrix in the Fock basis of photons.
This model enables the study of few-photon bifurcations and non-classical photon correlations in class-B laser devices, also leveraging quantum descriptions of coherently coupled nanolaser arrays.
arXiv Detail & Related papers (2022-05-26T16:33:51Z) - Ultra-long photonic quantum walks via spin-orbit metasurfaces [52.77024349608834]
We report ultra-long photonic quantum walks across several hundred optical modes, obtained by propagating a light beam through very few closely-stacked liquid-crystal metasurfaces.
With this setup we engineer quantum walks up to 320 discrete steps, far beyond state-of-the-art experiments.
arXiv Detail & Related papers (2022-03-28T19:37:08Z) - Ramsey imaging of optical traps [0.46173963059077294]
In this work, we demonstrate precise in-situ imaging of optical dipole traps by probing a hyperfine transition with Ramsey interferometry.
We obtain an absolute map of the potential landscape with micrometer resolution and shot-noise-limited spectral precision.
Our technique for imaging of optical traps can find wide application in quantum technologies based on ultracold atoms.
arXiv Detail & Related papers (2021-06-10T15:58:14Z) - Phonon dephasing and spectral diffusion of quantum emitters in hexagonal
Boron Nitride [52.915502553459724]
Quantum emitters in hexagonal boron nitride (hBN) are emerging as bright and robust sources of single photons for applications in quantum optics.
We study phonon dephasing and spectral diffusion of quantum emitters in hBN via resonant excitation spectroscopy at cryogenic temperatures.
arXiv Detail & Related papers (2021-05-25T05:56:18Z) - Quantum simulation with fully coherent dipole--dipole-interactions
mediated by three-dimensional subwavelength atomic arrays [0.0]
Quantum simulators employing cold atoms are among the most promising approaches to tackle quantum many-body problems.
Here, we propose to use a simple cubic three-dimensional array of atoms to produce an omnidirectional bandgap for light.
We show that it enables coherent, dissipation-free interactions between embedded impurities.
arXiv Detail & Related papers (2020-12-23T16:26:20Z) - Quantum interface between light and a one-dimensional atomic system [58.720142291102135]
We investigate optimal conditions for the quantum interface between a signal photon pulse and one-dimensional chain consisting of a varied number of atoms.
The efficiency of interaction is mainly limited by achieved overlap and coupling of the waveguide evanescent field with the trapped atoms.
arXiv Detail & Related papers (2020-04-11T11:43:54Z) - Waveguide Quantum Electrodynamics with Giant Superconducting Artificial
Atoms [40.456646238780195]
We employ an alternative architecture that realizes a giant atom by coupling small atoms to a waveguide at multiple, but well separated, discrete locations.
Our realization of giant atoms enables tunable atom-waveguide couplings with large on-off ratios and a coupling spectrum that can be engineered by device design.
arXiv Detail & Related papers (2019-12-27T16:45:59Z)
This list is automatically generated from the titles and abstracts of the papers in this site.
This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.