A 3-dimensional scanning trapped-ion probe

• URL: http://arxiv.org/abs/2412.17528v1
• Date: Mon, 23 Dec 2024 12:50:48 GMT
• Title: A 3-dimensional scanning trapped-ion probe
• Authors: Tobias Sägesser, Shreyans Jain, Pavel Hrmo, Alexander Ferk, Matteo Simoni, Yingying Cui, Carmelo Mordini, Daniel Kienzler, Jonathan Home,
• Abstract summary: Single-atom quantum sensors offer high spatial resolution and high sensitivity to electric and magnetic fields. We demonstrate a single ion probe which offers three-dimensional position scanning at between $50$ $mumathrmm$ and $450$ $mumathrmm$ from a metallic surface.
• Score: 33.7054351451505
• License:
• Abstract: Single-atom quantum sensors offer high spatial resolution and high sensitivity to electric and magnetic fields. Among them, trapped ions offer exceptional performance in sensing electric fields, which has been used in particular to probe these in the proximity of metallic surfaces. However, the flexibility of previous work was limited by the use of radio-frequency trapping fields, which has restricted spatial scanning to linear translations, and calls into question whether observed phenomena are connected to the presence of the radio-frequency fields. Here, using a Penning trap instead, we demonstrate a single ion probe which offers three-dimensional position scanning at distances between $50$ $\mu\mathrm{m}$ and $450$ $\mu\mathrm{m}$ from a metallic surface and above a $200\times200$ $\mu\mathrm{m}^{2}$ area, allowing us to reconstruct static and time-varying electric as well as magnetic fields. We use this to map charge distributions on the metallic surface and noise stemming from it. The methods demonstrated here allow similar probing to be carried out on samples with a variety of materials, surface constitutions and geometries, providing a new tool for surface science.

Related papers

• Ultrasensitive single-ion electrometry in a magnetic field gradient [0.0]
  We amplify the coupling between electric field perturbations and the spin states by using a static magnetic field gradient. Displacements of the trapped ion resulting from the forces experienced by an applied external electric field perturbation are mapped to an instantaneous change in the energy level splitting of the internal spin states. We demonstrate unprecedented electric field sensitivities for the measurement of both DC signals and AC signals across a frequency range of sub-Hz to $simmathrm500kHz$.
  arXiv  Detail & Related papers  (2024-06-12T17:07:45Z)
• Scanning spin probe based on magnonic vortex quantum cavities [0.0]
  We propose the realization of a nanoscale scanning electron paramagnetic resonance sensor using a vortex core in a thin-film disc. The vortex core can be displaced by using external magnetic fields of a few mT, enabling EPR scanning microscopy with large spatial resolution. Vortex nanocavities could also attain strong coupling to individual spin molecular qubits, with potential applications to mediate qubit-qubit interactions.
  arXiv  Detail & Related papers  (2024-01-12T12:53:49Z)
• Thermal masses and trapped-ion quantum spin models: a self-consistent approach to Yukawa-type interactions in the $λ\!φ^4$ model [44.99833362998488]
  A quantum simulation of magnetism in trapped-ion systems makes use of the crystal vibrations to mediate pairwise interactions between spins. These interactions can be accounted for by a long-wavelength relativistic theory, where the phonons are described by a coarse-grained Klein-Gordon field. We show that thermal effects, which can be controlled by laser cooling, can unveil this flow through the appearance of thermal masses in interacting QFTs.
  arXiv  Detail & Related papers  (2023-05-10T12:59:07Z)
• Characterizing the spatial potential of a surface electrode ion trap [0.0]
  We employ a simple yet highly precise parametric expression to describe the spatial field of a rectangular-shaped electrode. An optimization method is introduced to precisely characterize the axial electric field intensity created by the powered electrode and the stray field.
  arXiv  Detail & Related papers  (2023-01-02T08:44:41Z)
• Imaging ferroelectric domains with a single-spin scanning quantum sensor [0.0]
  Here, we use a scanning nitrogen-vacancy (NV) microscope to image domain patterns in piezoelectric and improper ferroelectric materials. The ability to measure both stray electric and magnetic fields under ambient conditions opens exciting opportunities for the study of multiferroic and multifunctional materials and devices.
  arXiv  Detail & Related papers  (2022-12-15T15:41:53Z)
• Multi-Center Magnon Excitations Open the Entire Brillouin Zone to Terahertz Magnetometry of Quantum Magnets [42.72559625804617]
  The magnon density of states can be accessed over the entire Brillouin zone through three-center magnon excitations. The results of THz time-domain experiments agree remarkably well with linear spin-wave theory.
  arXiv  Detail & Related papers  (2022-03-08T19:04:24Z)
• Near-Surface Electrical Characterisation of Silicon Electronic Devices Using Focused keV Ions [45.82374977939355]
  We show how to implant low-energy ions into silicon devices featuring an enlarged 60x60 $mu$m sensitive area. Despite the weak internal electric field, near-unity charge collection efficiency is obtained from the entire sensitive area. This can be explained by the critical role that the high-quality thermal gate oxide plays in the ion detection response.
  arXiv  Detail & Related papers  (2022-01-27T06:29:46Z)
• High-resolution 'magic'-field spectroscopy on trapped polyatomic molecules [62.997667081978825]
  Rapid progress in cooling and trapping of molecules has enabled first experiments on high resolution spectroscopy of trapped diatomic molecules. Extending this work to polyatomic molecules provides unique opportunities due to more complex geometries and additional internal degrees of freedom.
  arXiv  Detail & Related papers  (2021-10-21T15:46:17Z)
• Engineering the Radiative Dynamics of Thermalized Excitons with Metal Interfaces [58.720142291102135]
  We analyze the emission properties of excitons in TMDCs near planar metal interfaces. We find suppression or enhancement of emission relative to the point dipole case by several orders of magnitude. nanoscale optical cavities are a viable pathway to generating long-lifetime exciton states in TMDCs.
  arXiv  Detail & Related papers  (2021-10-11T19:40:24Z)
• Spatially-resolved decoherence of donor spins in silicon strained by a metallic electrode [0.0]
  We report a comprehensive study of the coherence of near-surface bismuth donor spins in 28-silicon at millikelvin temperatures. By measuring magnetic-field-insensitive clock transitions we separate magnetic noise caused by surface spins from charge noise. The interplay of these decoherence mechanisms for such near-surface electron spins is critical for their application in quantum technologies.
  arXiv  Detail & Related papers  (2021-01-12T10:32:01Z)

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.