Two-photon interference between mutually-detuned resonance fluorescence signals scattered off a semiconductor quantum dot

• URL: http://arxiv.org/abs/2501.16939v3
• Date: Thu, 06 Nov 2025 11:48:39 GMT
• Title: Two-photon interference between mutually-detuned resonance fluorescence signals scattered off a semiconductor quantum dot
• Authors: Guoqi Huang, Jian Wang, Ziqi Zeng, Hanqing Liu, Li Liu, Weijie Ji, Bang Wu, Haiqiao Ni, Zhichuan Niu, Rongzhen Jiao, Davide G. Marangon, Zhiliang Yuan,
• Abstract summary: We study how driving detuning affects the indistinguishability of photons scattered from a two-level emitter.<n>No prior experiment has examined how driving detuning affects the indistinguishability of photons scattered from a TLE.
• Score: 9.732382399232668
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: The radiative linewidth of a two-level emitter (TLE) fundamentally limits the bandwidth available for quantum information processing. Despite its importance, no prior experiment has systematically examined how driving detuning affects the indistinguishability of photons scattered from a TLE - a parameter critical for photonic quantum computing. Here, we perform post-selective two-photon interference measurements between mutually detuned resonance fluorescence signals from an InAs quantum dot embedded in a micropillar cavity. At small mutual laser detunings (<=0.5GHz), the results are accurately described by the pure-state model [Nat. Commun. 16, 6453 (2025)], which treats all resonance-fluorescence photons as spontaneous emission. At larger detunings, we uncover an anomalous feature in the two-photon interference, where the normalised second-order correlation function under orthogonal polarisations yields g2_vert(0) < 0.5.

Related papers

• Optimizing the quantum interference between single photons and local oscillator with photon correlations [0.0]
  We report on two homodyne photon-correlation techniques enabling the precise measurement of the overlap between a single photon generated by a quantum dot-cavity device and pulsed laser light.<n>The different statistics of interfering fields lead to specific signatures of the quantum interference on the photon correlations at the output of the interfering beam splitter.<n>We compare the behavior of maximized overlap, measuring either the Hong-Ou-Mandel visibility between both outputs or the photon bunching at a single output.
  arXiv  Detail & Related papers  (2025-04-16T14:19:51Z)
• Addressing the correlation of Stokes-shifted photons emitted from two quantum emitters [0.0]
  We propose a general model to characterize the correlation of either Zero-Phonon Line photons or Stokes-shifted photons. This model successfully reproduces the experimental correlation of Stokes-shifted photons emitted from two interacting molecules. We analyze the role of quantum coherence in light emission from two uncorrelated emitters.
  arXiv  Detail & Related papers  (2025-01-31T18:07:02Z)
• Sensing Based on Quantum Correlation of Photons in the Weak Nonlinear Regime [14.121716788061336]
  Quantum correlation of photons based on quantum interference has been extensively studied for realizing single-photon sources in weak nonlinear regime.<n>We propose schemes to realize sensitive sensing by the quantum correlation of photons based on quantum interference.
  arXiv  Detail & Related papers  (2024-11-28T13:39:25Z)
• Non-classical excitation of a solid-state quantum emitter [0.0]
  We show that a single photon is sufficient to change the state of a solid-state quantum emitter. These results suggest future possibilities ranging from enabling quantum information transfer in a quantum network to building deterministic entangling gates for photonic quantum computing.
  arXiv  Detail & Related papers  (2024-07-30T16:16:58Z)
• 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)
• Probing many-body correlations using quantum-cascade correlation spectroscopy [0.0]
  The radiative quantum cascade, i.e. the consecutive emission of photons from a ladder of energy levels, is of fundamental importance in quantum optics. Here, we use exciton polaritons to explore the cascaded emission of photons in the regime where individual transitions of the ladder are not resolved. Remarkably, the measured photon-photon correlations exhibit a strong dependence on the polariton energy, and therefore on the underlying polaritonic interaction strength.
  arXiv  Detail & Related papers  (2022-12-18T09:51:12Z)
• 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)
• Silicon nitride waveguides with intrinsic single-photon emitters for integrated quantum photonics [97.5153823429076]
  We show the first successful coupling of photons from intrinsic single-photon emitters in SiN to monolithically integrated waveguides made of the same material. Results pave the way toward the realization of scalable, technology-ready quantum photonic integrated circuitry.
  arXiv  Detail & Related papers  (2022-05-17T16:51:29Z)
• Collective scattering from quantum dots in a photonic crystal waveguide [0.3932300766934225]
  We demonstrate scattering of laser light from two InAs quantum dots coupled to a photonic crystal waveguide. By performing measurements of the intensity and photon statistics of transmitted laser light before and after tuning the dots into resonance, we show that the nonlinearity is enhanced by collective scattering.
  arXiv  Detail & Related papers  (2022-05-10T13:53:42Z)
• Two-photon resonance fluorescence of two interacting non-identical quantum emitters [77.34726150561087]
  We study a system of two interacting, non-indentical quantum emitters driven by a coherent field. We show that the features imprinted by the two-photon dynamics into the spectrum of resonance fluorescence are particularly sensitive to changes in the distance between emitters. This can be exploited for applications such as superresolution imaging of point-like sources.
  arXiv  Detail & Related papers  (2021-06-04T16:13:01Z)
• Observation-dependent suppression and enhancement of two-photon coincidences by tailored losses [68.8204255655161]
  Hong-Ou-Mandel (HOM) effect can lead to a perfect suppression of two-particle coincidences between the output ports of a balanced beam splitter. In this work, we demonstrate experimentally that the two-particle coincidence statistics of two bosons can instead be seamlessly tuned to substantial enhancement. Our findings reveal a new approach to harnessing non-Hermitian settings for the manipulation of multi-particle quantum states.
  arXiv  Detail & Related papers  (2021-05-12T06:47:35Z)
• Waveguide quantum electrodynamics: collective radiance and photon-photon correlations [151.77380156599398]
  Quantum electrodynamics deals with the interaction of photons propagating in a waveguide with localized quantum emitters. We focus on guided photons and ordered arrays, leading to super- and sub-radiant states, bound photon states and quantum correlations with promising quantum information applications.
  arXiv  Detail & Related papers  (2021-03-11T17:49:52Z)
• Coherently controlled quantum features in a coupled interferometric scheme [0.0]
  In an interferometric scheme, anticorrelation results from photon bunching based on randomness when entangled photon pairs impinge on a beam splitter. In this paper, the origin of quantum features in a coupled interferometric scheme is investigated using pure coherence optics. A deterministic method of entangled photon-pair generation is proposed for on-demand coherence control of quantum processing.
  arXiv  Detail & Related papers  (2021-02-18T07:10:32Z)
• 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)
• Deterministic quantum correlation in an interferometric scheme [0.0]
  In this paper, the fundamental principles of quantumness are investigated in an interferometric scheme for controllable quantum correlation. In a Mach-Zehnder interferometer, the photonic de Broglie wavelength has also been studied for quantum sensing with an enhanced phase resolution overcoming the standard quantum limit.
  arXiv  Detail & Related papers  (2020-12-17T04:12:49Z)
• 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)
• Optical repumping of resonantly excited quantum emitters in hexagonal boron nitride [52.77024349608834]
  We present an optical co-excitation scheme which uses a weak non-resonant laser to reduce transitions to a dark state and amplify the photoluminescence from quantum emitters in hexagonal boron nitride (hBN) Our results are important for the deployment of atom-like defects in hBN as reliable building blocks for quantum photonic applications.
  arXiv  Detail & Related papers  (2020-09-11T10:15:22Z)

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.