Coherent Control of Photon Correlations in Trapped Ion Crystals

• URL: http://arxiv.org/abs/2410.09465v1
• Date: Sat, 12 Oct 2024 09:58:09 GMT
• Title: Coherent Control of Photon Correlations in Trapped Ion Crystals
• Authors: K. Singh, A. Cidrim, A. Kovalenko, T. Pham, O. Číp, L. Slodička, R. Bachelard,
• Abstract summary: We show how the interference of coherent scattering, combined with spontaneous emission, provides a control mechanism for the light statistics. Our results illustrate how the interference of coherent scattering, combined with spontaneous emission, provides a control mechanism for the light statistics.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: While the spontaneous emission from independent emitters provides spatially uncorrelated photons - a typical manifestation of quantum randomness, the interference of the coherent scattering leads to a well-defined intensity pattern - a feature described by linear optics. We here demonstrate experimentally how the interplay between the two mechanisms in large systems of quantum emitters leads to spatial variations of photon correlations. The implementation with trapped ion crystals in free space allows us to observe the anti-correlation between photon rates and variance of the photon number distributions in chains of up to 18 ions. For smaller crystals of four ions, the transition from a sub-Poissonian to a super-Poissonian variance of the photon number in the scattered light is reported. For higher numbers of scatterers, the photon statistics still display a strong deviation from the fully incoherent scattering case. Our results illustrate how the interference of coherent scattering, combined with spontaneous emission, provides a control mechanism for the light statistics.

Related papers

• Interference of photons from independent hot atoms [0.0]
  Interferometry employs finite temporal coherence of light scattered elastically in the forward and backward directions. Interferometry promises direct applications in Doppler-free atomic and molecular spectroscopy.
  arXiv  Detail & Related papers  (2024-09-27T11:34:59Z)
• Demonstration of Lossy Linear Transformations and Two-Photon Interference on a Photonic Chip [78.1768579844556]
  We show that engineered loss, using an auxiliary waveguide, allows one to invert the spatial statistics from bunching to antibunching. We study the photon statistics within the loss-emulating channel and observe photon coincidences, which may provide insights into the design of quantum photonic integrated chips.
  arXiv  Detail & Related papers  (2024-04-09T06:45:46Z)
• Coherent Two-photon Backscattering and Induced Angular Quantum Correlations in Multiple-Scattered Two-Photon States of the Light [0.65268245109828]
  coherent two-photon backscattering is a manifestation of weak localization. Quantum correlations in backscattering are investigated for finite three-dimensional disordered structures. We show that by increasing the disordered material density, the width of the coherent two-photon backscattering cones increases.
  arXiv  Detail & Related papers  (2024-01-24T01:48:16Z)
• Directional spontaneous emission in photonic crystal slabs [49.1574468325115]
  Spontaneous emission is a fundamental out-of-equilibrium process in which an excited quantum emitter relaxes to the ground state due to quantum fluctuations. One way to modify these photon-mediated interactions is to alter the dipole radiation patterns of the emitter, e.g., by placing photonic crystals near them. Our study delves into the interaction between these directional emission patterns and the aforementioned variables, revealing the untapped potential to fine-tune collective quantum optical phenomena.
  arXiv  Detail & Related papers  (2023-12-04T15:35:41Z)
• Tailoring photon statistics with an atom-based two-photon interferometer [0.0]
  We actively control the quantum phase between the transmitted and incoherently scattered two-photon component. We observe interference fringes in the normalized photon coincidence rate, varying from antibunching to bunching. Our results lend themselves to the development of novel quantum light sources.
  arXiv  Detail & Related papers  (2022-12-19T16:24:54Z)
• Entanglement of annihilation photons [141.5628276096321]
  We present the results of a new experimental study of the quantum entanglement of photon pairs produced in positron-electron annihilation at rest. Despite numerous measurements, there is still no experimental proof of the entanglement of photons.
  arXiv  Detail & Related papers  (2022-10-14T08:21:55Z)
• Correlated steady states and Raman lasing in continuously pumped and probed atomic ensembles [68.8204255655161]
  We consider an ensemble of Alkali atoms that are continuously optically pumped and probed. Due to the collective scattering of photons at large optical depth, the steady state of atoms does not correspond to an uncorrelated tensor-product state. We find and characterize regimes of Raman lasing, akin to the model of a superradiant laser.
  arXiv  Detail & Related papers  (2022-05-10T06:54:54Z)
• Light-matter interactions near photonic Weyl points [68.8204255655161]
  Weyl photons appear when two three-dimensional photonic bands with linear dispersion are degenerated at a single momentum point, labeled as Weyl point. We analyze the dynamics of a single quantum emitter coupled to a Weyl photonic bath as a function of its detuning with respect to the Weyl point.
  arXiv  Detail & Related papers  (2020-12-23T18:51:13Z)
• The Origin of Antibunching in Resonance Fluorescence [0.0]
  Epitaxial quantum dots have emerged as one of the best single-photon sources. One intriguing observation is the scattering of photons with subnatural linewidth from a two-level system. Here, we demonstrate that this simultaneous observation of subnatural linewidth and antibunching is not possible with simple resonant excitation.
  arXiv  Detail & Related papers  (2020-05-24T16:48:33Z)
• Entanglement dynamics in dissipative photonic Mott insulators [62.997667081978825]
  In spite of particle losses the quantum entanglement propagation exhibits a ballistic character with propagation speeds related to the differerent quasiparticles that are involved in the dynamics. Our analysis reveals that photon dissipation has a strikingly asymmetric behavior in the two configurations with a much more dramatic role on the holon entanglement propagation than for the doublon case.
  arXiv  Detail & Related papers  (2020-04-27T15:48:24Z)
• Atom-Photon Spin-Exchange Collisions Mediated by Rydberg Dressing [11.207403145794927]
  We show that photons propagating through a Rydberg-dressed atomic ensemble can exchange its spin state with a single atom. Such a spin-exchange collision exhibits both dissipative and coherent features, depending on the interaction strength.
  arXiv  Detail & Related papers  (2020-03-19T12:04:53Z)

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.