A hybrid quantum system formed by trapping atoms in the near-field of a levitated nanosphere

• URL: http://arxiv.org/abs/2005.11662v1
• Date: Sun, 24 May 2020 06:10:44 GMT
• Title: A hybrid quantum system formed by trapping atoms in the near-field of a levitated nanosphere
• Authors: A. Hopper and P. F. Barker
• Abstract summary: Near-field, radially symmetric optical potentials can be used for sympathetic cooling and for creating a bound nanosphere-atom system analogous to a large molecule. We demonstrate that the long range, Coulomb-like potential produced by a single blue detuned field increases the collisional cross-section by eight orders of magnitude.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Near-field, radially symmetric optical potentials centred around a levitated nanosphere can be used for sympathetic cooling and for creating a bound nanosphere-atom system analogous to a large molecule. We demonstrate that the long range, Coulomb-like potential produced by a single blue detuned field increases the collisional cross-section by eight orders of magnitude, allowing fast sympathetic cooling of a trapped nanosphere to microKelvin temperatures using cold atoms. By using two optical fields to create a combination of repulsive and attractive potentials, we demonstrate that a cold atom can be bound to a nanosphere creating a new levitated hybrid quantum system suitable for exploring quantum mechanics with massive particles.

Related papers

• Long-lived entanglement of molecules in magic-wavelength optical tweezers [41.94295877935867]
  We present the first realisation of a microwave-driven entangling gate between two molecules. We show that the magic-wavelength trap preserves the entanglement, with no measurable decay over 0.5 s. The extension of precise quantum control to complex molecular systems will allow their additional degrees of freedom to be exploited across many domains of quantum science.
  arXiv  Detail & Related papers  (2024-08-27T09:28:56Z)
• Quantum thermodynamics with a single superconducting vortex [44.99833362998488]
  We demonstrate complete control over dynamics of a single superconducting vortex in a nanostructure. Our device allows us to trap the vortex in a field-cooled aluminum nanosquare and expel it on demand with a nanosecond pulse of electrical current.
  arXiv  Detail & Related papers  (2024-02-09T14:16:20Z)
• Strongly Coupled Spins of Silicon-Vacancy Centers Inside a Nanodiamond with Sub-Megahertz Linewidth [43.06643088952006]
  electron spin of a color center in diamond mediates interaction between a long-lived nuclear spin and a photon. We demonstrate strong coupling of its electron spin, while the electron spin's decoherence rate remained below 1 MHz. We furthermore demonstrate multi-spin coupling with the potential to establish registers of quantum memories in nanodiamonds.
  arXiv  Detail & Related papers  (2023-12-14T14:17:35Z)
• Dipolar quantum solids emerging in a Hubbard quantum simulator [45.82143101967126]
  Long-range and anisotropic interactions promote rich spatial structure in quantum mechanical many-body systems. We show that novel strongly correlated quantum phases can be realized using long-range dipolar interaction in optical lattices. This work opens the door to quantum simulations of a wide range of lattice models with long-range and anisotropic interactions.
  arXiv  Detail & Related papers  (2023-06-01T16:49:20Z)
• On-demand assembly of optically-levitated nanoparticle arrays in vacuum [4.636346536834408]
  In this work, we create a reconfigurable optically-levitated nanoparticles array in vacuum. Our work provides a new platform for studying macroscopic many-body physics.
  arXiv  Detail & Related papers  (2022-07-08T01:40:18Z)
• Tuneable Gaussian entanglement in levitated nanoparticle arrays [0.0]
  We propose a scheme to generate entanglement in the motional steady state of multiple levitated nanoparticles using coherent scattering to multiple cavity modes. Our proposal paves the way towards creating complex quantum states of multiple levitated nanoparticles for advanced quantum sensing protocols and many-body quantum simulations.
  arXiv  Detail & Related papers  (2022-06-15T08:19:36Z)
• Tuning long-range fermion-mediated interactions in cold-atom quantum simulators [68.8204255655161]
  Engineering long-range interactions in cold-atom quantum simulators can lead to exotic quantum many-body behavior. Here, we propose several tuning knobs, accessible in current experimental platforms, that allow to further control the range and shape of the mediated interactions.
  arXiv  Detail & Related papers  (2022-03-31T13:32:12Z)
• Steady motional entanglement between two distant levitated nanoparticles [0.6091702876917279]
  We consider two distant nanoparticles, both of which are optically trapped in two cavities. Based on the coherent scattering mechanism, we find that the ultrastrong optomechanical coupling between the cavity modes and the motion of the levitated nanoparticles could achieve. The large and steady entanglement between the filtered output cavity modes and the motion of nanosparticles can be generated, if the trapping laser is under the red sideband.
  arXiv  Detail & Related papers  (2021-11-23T02:43:18Z)
• Stochastic Variational Approach to Small Atoms and Molecules Coupled to Quantum Field Modes [55.41644538483948]
  We present a variational calculation (SVM) of energies and wave functions of few particle systems coupled to quantum fields in cavity QED. Examples for a two-dimensional trion and confined electrons as well as for the He atom and the Hydrogen molecule are presented.
  arXiv  Detail & Related papers  (2021-08-25T13:40:42Z)
• Stationary entanglement between light and microwave via ferromagnetic magnons [7.922177718603974]
  We show how to generate stationary entanglement between light and microwave in a hybrid opto-electro-magnonical system. The optical modes in nanofiber can evanescently coupled to whispering gallery modes, that are able to interact with magnon mode via spin-orbit interaction.
  arXiv  Detail & Related papers  (2020-05-10T05:16:45Z)
• Quantum Many-Body Physics with Ultracold Polar Molecules: Nanostructured Potential Barriers and Interactions [2.409938612878261]
  We design dipolar quantum many-body Hamiltonians that will facilitate the realization of exotic quantum phases. The main idea is to modulate both single-body potential barriers and two-body dipolar interactions on a spatial scale of tens of nanometers.
  arXiv  Detail & Related papers  (2020-01-31T12:30:12Z)

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.