Bandwidth control of the biphoton wavefunction exploiting spatio-temporal correlations

• URL: http://arxiv.org/abs/2104.13750v1
• Date: Wed, 28 Apr 2021 13:30:00 GMT
• Title: Bandwidth control of the biphoton wavefunction exploiting spatio-temporal correlations
• Authors: J.J. Miguel Varga, Jon Lasa-Alonso, Mart\'in Molezuelas-Ferreras, Nora Tischler and Gabriel Molina-Terriza
• Abstract summary: We study how the waists of the detection and pump beams impact on the spectral bandwidth of the photons. This allows for a simple experimental implementation to control the bandwidth of the biphoton spectra.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: In this work we study the spatio-temporal correlations of photons produced by spontaneous parametric down conversion. In particular, we study how the waists of the detection and pump beams impact on the spectral bandwidth of the photons. Our results indicate that this parameter is greatly affected by the spatial properties of the detection beam, while not as much by the pump beam. This allows for a simple experimental implementation to control the bandwidth of the biphoton spectra, which only entails modifying the optical configuration to collect the photons. Moreover, we have performed Hong-Ou-Mandel interferometry measurements that also provide the phase of the biphoton wavefunction, and thereby its temporal shape. We explain all these results with a toy model derived under certain approximations, which accurately recovers most of the interesting experimental details.

Related papers

• Biphoton State Reconstruction via Phase Retrieval Methods [0.0]
  We show how one can infer the spatial structure of bi-photons generated by spontaneous parametric down conversion. A spatially resolved analysis of the second-order correlations allows us to isolate the moduli of the pump and phasematching contributions to the two-photon states.
  arXiv  Detail & Related papers  (2024-03-11T16:56:37Z)
• Wave-particle correlations in multiphoton resonances of coherent light-matter interaction [0.0]
  We discuss the conditional measurement of field amplitudes by a nonclassical photon sequence in the Jaynes-Cummings (JC) model under multiphoton operation.
  arXiv  Detail & Related papers  (2024-02-14T16:51:54Z)
• 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)
• Atomic diffraction from single-photon transitions in gravity and Standard-Model extensions [49.26431084736478]
  We study single-photon transitions, both magnetically-induced and direct ones, in gravity and Standard-Model extensions. We take into account relativistic effects like the coupling of internal to center-of-mass degrees of freedom, induced by the mass defect.
  arXiv  Detail & Related papers  (2023-09-05T08:51:42Z)
• Experimental analysis on image resolution of quantum imaging with undetected light through position correlations [0.0]
  We experimentally analyse how the crystal length and pump waist affect the image resolution. We probe the resolution of our quantum imaging scheme for varying pump waists over one order of magnitude.
  arXiv  Detail & Related papers  (2023-06-02T19:29:15Z)
• On-chip quantum information processing with distinguishable photons [55.41644538483948]
  Multi-photon interference is at the heart of photonic quantum technologies. Here, we experimentally demonstrate that detection can be implemented with a temporal resolution sufficient to interfere photons detuned on the scales necessary for cavity-based integrated photon sources. We show how time-resolved detection of non-ideal photons can be used to improve the fidelity of an entangling operation and to mitigate the reduction of computational complexity in boson sampling experiments.
  arXiv  Detail & Related papers  (2022-10-14T18:16:49Z)
• Superradiance in dynamically modulated Tavis-Cumming model with spectral disorder [62.997667081978825]
  Superradiance is the enhanced emission of photons from quantum emitters collectively coupling to the same optical mode. We study the interplay between superradiance and spectral disorder in a dynamically modulated Tavis-Cummings model.
  arXiv  Detail & Related papers  (2021-08-18T21:29:32Z)
• Entangled Two-Photon Absorption Spectroscopy with Varying Pump Wavelength [0.0]
  In virtual-state spectroscopy, information about the energy-level structure of an arbitrary sample is retrieved by Fourier transforming sets of measured two-photon absorption probabilities. We propose and discuss an extension of entangled two-photon absorption spectroscopy that solves this problem by means of repeated measurements at different pump wavelengths.
  arXiv  Detail & Related papers  (2021-04-23T15:28:40Z)
• Auto-heterodyne characterization of narrow-band photon pairs [68.8204255655161]
  We describe a technique to measure photon pair joint spectra by detecting the time-correlation beat note when non-degenerate photon pairs interfere at a beamsplitter. The technique is well suited to characterize pairs of photons, each of which can interact with a single atomic species.
  arXiv  Detail & Related papers  (2021-01-08T18:21:30Z)
• Quantum Borrmann effect for dissipation-immune photon-photon correlations [137.6408511310322]
  We study theoretically the second-order correlation function $g(2)(t)$ for photons transmitted through a periodic Bragg-spaced array of superconducting qubits, coupled to a waveguide. We demonstrate that photon bunching and anti-bunching persist much longer than both radiative and non-radiative lifetimes of a single qubit.
  arXiv  Detail & Related papers  (2020-09-29T14:37:04Z)
• Wave-particle duality using the Compton effect [0.0]
  We study the consequences of the beam-splitter recoil, during the passage of the photon, over the interference pattern produced by the device. Fortuitously, the model used to describe the interaction between the idealized beam-splitter and the photon clearly indicates that an interferometer based on Compton's effect could be build to study wave-particle duality.
  arXiv  Detail & Related papers  (2020-05-06T16:23:56Z)

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.