Effect of Spontaneously Generated Coherence and Detuning on 2D Atom Localization in Two Orthogonal Standing-Wave Fields

• URL: http://arxiv.org/abs/2403.12102v1
• Date: Sun, 17 Mar 2024 11:50:21 GMT
• Title: Effect of Spontaneously Generated Coherence and Detuning on 2D Atom Localization in Two Orthogonal Standing-Wave Fields
• Authors: Shun-Cai Zhao, Qi-Xuan Wu, Ai-Ling Gong,
• Abstract summary: Two-dimensional (2D) atom localization via the spontaneously generated coherence (SGC) and detunings associated with the probe and standing-wave driving fields are investigated.
• Score: 0.06144680854063938
• License: http://creativecommons.org/licenses/by-nc-nd/4.0/
• Abstract: Two-dimensional (2D) atom localization via the spontaneously generated coherence (SGC) and detunings associated with the probe and standing-wave driving fields in a three-level V-type atomic system are investigated. In the gain process, two equal and tunable peak maxima of position distribution in the plane via the detunings are observed. However, one decreasing and the other increasing peak maxima in the absorption process via the SGC are achieved in the quadrants I and III of the x-y plane. A better resolution and more novelty for the 2D atom localization in our scheme are obtained.

Related papers

• Construction of the Jaynes-Cummings interaction over the finite two-dimensional oscillator [51.56484100374058]
  The construction of the coupling between the degenerate energy states of the finite oscillator and the two levels of the atom allows the identification of excitation-conserved eigenbasis.<n>A dynamical approach to the evolution of mean values of the fields mediated by the atom is shown in the interaction picture.
  arXiv  Detail & Related papers  (2025-09-08T20:49:16Z)
• Correlated relaxation and emerging entanglement in arrays of $Λ$-type atoms [83.88591755871734]
  We show that the atomic entanglement emerges in the course of relaxation and persists in the final steady state of the system. Our findings open a new way to engineer dissipation-induced entanglement.
  arXiv  Detail & Related papers  (2024-11-11T08:39:32Z)
• 2D isotropic negative permeability in a Λ-type three-level atomic system [0.0]
  Two equally and tunable peak maxima of negative magnetic responses are observed in the x-y plane. Around the peak maxima region the negative permeability is isotropic.
  arXiv  Detail & Related papers  (2024-03-17T14:24:08Z)
• Dual peaks evoluting into single-peak for sub-wavelength 2-D atom localization in a V-type atomic system [8.871533417302935]
  atom localization of a V-type atomic system is discussed. The atom localization depicted by the probe dual absorption peaks is achieved when the detunings are tuned. The single-peak 2-D localization demonstrated the advantage for atom localization achieved by the flexible manipulating parameters in our scheme.
  arXiv  Detail & Related papers  (2024-02-01T12:52:46Z)
• Higher-order topological Peierls insulator in a two-dimensional atom-cavity system [58.720142291102135]
  We show how photon-mediated interactions give rise to a plaquette-ordered bond pattern in the atomic ground state. The pattern opens a non-trivial topological gap in 2D, resulting in a higher-order topological phase hosting corner states. Our work shows how atomic quantum simulators can be harnessed to investigate novel strongly-correlated topological phenomena.
  arXiv  Detail & Related papers  (2023-05-05T10:25:14Z)
• A first-principles calculation of electron-phonon interactions for the $\ ext{C}_2\ ext{C}_\ ext{N}$ and $\ ext{V}_\ ext{N}\ ext{N}_\ ext{B}$ defects in hexagonal boron nitride [52.77024349608834]
  Quantum emitters in two-dimensional hexagonal boron nitride (h-BN) have generated significant interest. Recent observations of Fourier transform (FT) limited photons emitted from h-BN flakes at room temperature.
  arXiv  Detail & Related papers  (2022-07-28T23:31:38Z)
• Ultraprecise off-axis atom localization with hybrid fields [7.5225293309885455]
  We propose a scheme for realizing two-dimensional off-axis atom localization in a three-level Lambda-type system. Our results provide a more flexible way to localize atoms in a two-dimensional system, possibly paving one-step closer to the nanometer-scale atom lithography and ultraprecise microscopy.
  arXiv  Detail & Related papers  (2022-06-22T11:09:03Z)
• Spatially strongly confined atomic excitation via two dimensional stimulated Raman adiabatic passage [0.0]
  We consider a method of sub-superlocalization and patterning of atomic matter waves via a two dimensional stimulated Raman adiabatic passage (2D STIRAP) process. By numerical simulations we show that the 2D STIRAP approach outperforms the established method of coherent population trapping.
  arXiv  Detail & Related papers  (2021-11-05T22:45:21Z)
• Quantum correlations, entanglement spectrum and coherence of two-particle reduced density matrix in the Extended Hubbard Model [62.997667081978825]
  We study the ground state properties of the one-dimensional extended Hubbard model at half-filling. In particular, in the superconducting region, we obtain that the entanglement spectrum signals a transition between a dominant singlet (SS) to triplet (TS) pairing ordering in the system.
  arXiv  Detail & Related papers  (2021-10-29T21:02:24Z)
• Tunable directional emission and collective dissipation with quantum metasurfaces [62.997667081978825]
  Subradiant excitations propagate through the atomic array with very long lifetimes. We demonstrate that one can harness these excitations to obtain tunable directional emission patterns. We also benchmark how these directional emission patterns translate into collective, anisotropic dissipative couplings.
  arXiv  Detail & Related papers  (2021-07-01T14:26:33Z)
• Engineering multipartite entangled states in doubly pumped parametric down-conversion processes [68.8204255655161]
  We investigate the quantum state generated by optical parametric down-conversion in a $chi(2) $ medium driven by two modes. The analysis shows the emergence of multipartite, namely 3- or 4-partite, entangled states in a subset of the modes generated by the process.
  arXiv  Detail & Related papers  (2020-07-23T13:53:12Z)
• Hyperentanglement in structured quantum light [50.591267188664666]
  Entanglement in high-dimensional quantum systems, where one or more degrees of freedom of light are involved, offers increased information capacities and enables new quantum protocols. Here, we demonstrate a functional source of high-dimensional, noise-resilient hyperentangled states encoded in time-frequency and vector-vortex structured modes. We generate highly entangled photon pairs at telecom wavelength that we characterise via two-photon interference and quantum state tomography, achieving near-unity visibilities and fidelities.
  arXiv  Detail & Related papers  (2020-06-02T18:00:04Z)
• Ultraprecise Rydberg atomic localization using optical vortices [6.418501325367736]
  We propose a robust localization of the highly-excited Rydberg atoms, interacting with doughnut-shaped optical vortices. A vortex beam can provide an ultrahigh-precision two-dimensional localization solely in the zero-intensity center. To develop a new subwavelength localization technique, our results pave one-step closer to reduce excitation volumes to the level of a few nanometers.
  arXiv  Detail & Related papers  (2020-05-21T15:22:44Z)

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.