Advancing the heralded photon number-state characterization by understanding the interplay of experimental imperfections

• URL: http://arxiv.org/abs/2502.11631v1
• Date: Mon, 17 Feb 2025 10:20:39 GMT
• Title: Advancing the heralded photon number-state characterization by understanding the interplay of experimental imperfections
• Authors: Daniel Borrero Landazabal, Kaisa Laiho,
• Abstract summary: We theoretically explore the properties of heralded number states including up to three photons generated from single-mode twin beams. We use the fidelity, normalized second-order factorial moment of photon number for the heralded state $(g(2)_h)$, and photon-number parity as figures of merit.
• Score: 0.0
• License:
• Abstract: We theoretically explore the properties of heralded number states including up to three photons that are generated from single-mode twin beams. We investigate the effects of different parameters involved in the state preparation by using the fidelity, normalized second-order factorial moment of photon number for the heralded state $(g^{(2)}_h)$, and photon-number parity as figures of merit. Especially, the photon-number parity offers a practical and robust tool for inferring the target state quality by capturing the contamination of all undesired photon-number contributions. We focus on expressing our results in terms of experimentally easily accessible parameters such as the coincidences-to-accidentals ratio and the detection efficiencies. Our results identify the optimal parameter regions for generating high quality photon-number states and provide useful insights for advancing their use in quantum technologies.

Related papers

• The Influence of Experimental Imperfections on Photonic GHZ State Generation [0.0]
  We investigate the influence of photon loss, multi-photon terms and photon distinguishability on the generation of photonic 3-partite GHZ states via established fusion protocols. We show that different types of imperfections are dominant with respect to the fidelity and generation success probability.
  arXiv  Detail & Related papers  (2024-06-26T11:09:23Z)
• Experimental preparation of multiphoton-added coherent states of light [0.0]
  Conditional addition of photons is a crucial tool for optical quantum state engineering. We demonstrate the addition of one, two, and three photons to input coherent states with various amplitudes. Results pave the way towards the experimental realization of complex optical quantum operations.
  arXiv  Detail & Related papers  (2024-05-16T19:06:52Z)
• 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)
• Amplification of cascaded downconversion by reusing photons with a switchable cavity [62.997667081978825]
  We propose a scheme to amplify triplet production rates by using a fast switch and a delay loop. Our proof-of-concept device increases the rate of detected photon triplets as predicted.
  arXiv  Detail & Related papers  (2022-09-23T15:53:44Z)
• Two-Photon Interference of Single Photons from Dissimilar Sources [0.0]
  Entanglement swapping and heralding are at the heart of many protocols for distributed quantum information. We develop a theoretical description of pulsed two-photon interference of photons from dissimilar sources. We study their dependence on critical system parameters such as quantum state lifetime and frequency detuning.
  arXiv  Detail & Related papers  (2022-02-10T07:51:27Z)
• Un-symmetric photon subtraction: a method for generating high photon number states and their relevance to loss estimation at ultimate quantum limit [0.0]
  We have studied theoretical un-symmetric multi-photon subtracted twin beam state and demonstrated a method for generating states that resembles to high photon number states. A crucial point is high non-classicality is obtained by photon subtraction when mean photons per mode of twin beam state is low.
  arXiv  Detail & Related papers  (2021-10-03T23:28:47Z)
• 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)
• Conditional preparation of non-Gaussian quantum optical states by mesoscopic measurement [62.997667081978825]
  Non-Gaussian states of an optical field are important as a proposed resource in quantum information applications. We propose a novel approach involving displacement of the ancilla field into the regime where mesoscopic detectors can be used. We conclude that states with strong Wigner negativity can be prepared at high rates by this technique under experimentally attainable conditions.
  arXiv  Detail & Related papers  (2021-03-29T16:59:18Z)
• Mechanistic Understanding of Entanglement and Heralding in Cascade Emitters [0.0]
  We theoretically investigate the properties of quantum emitters (QEs) as a source of entangled photons with practical quantum properties. Through the theoretical analysis, we characterize the properties of a cascade (biexciton) emitter. We show how the purity and the degree of entanglement are connected to the production of heralded single photons.
  arXiv  Detail & Related papers  (2020-09-29T13:43:51Z)
• A bright and fast source of coherent single photons [46.25143811066789]
  A single photon source is a key enabling technology in device-independent quantum communication. We report a single photon source with an especially high system efficiency.
  arXiv  Detail & Related papers  (2020-07-24T17:08:46Z)
• Near-ideal spontaneous photon sources in silicon quantum photonics [55.41644538483948]
  Integrated photonics is a robust platform for quantum information processing. Sources of single photons that are highly indistinguishable and pure, that are either near-deterministic or heralded with high efficiency, have been elusive. Here, we demonstrate on-chip photon sources that simultaneously meet each of these requirements.
  arXiv  Detail & Related papers  (2020-05-19T16:46:44Z)

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.