Heralded single-photon source based on superpositions of squeezed states

• URL: http://arxiv.org/abs/2402.17118v2
• Date: Sat, 18 May 2024 03:42:16 GMT
• Title: Heralded single-photon source based on superpositions of squeezed states
• Authors: Hiroo Azuma, William J. Munro, Kae Nemoto,
• Abstract summary: We propose a heralded single-photon source based on injecting a superposition of oppositely squeezed states onto a beam splitter. Our superposition of squeezed states is composed of only even photon number states.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We propose a heralded single-photon source based on injecting a superposition of oppositely squeezed states onto a beam splitter. Our superposition of squeezed states is composed of only even photon number states (the number of photons is equal to $2,6,10,...$) meaning the probability for an emitted single photon given as a heralded single-photon event is higher than what one can achieve from the usual two-mode squeezed state. This enables one to realize an enhanced heralded single-photon source. We discuss how to create this superposition of squeezed states utilizing a single-mode squeezed state and the cross-Kerr nonlinearity. Our proposed method significantly improves the probability of emitting the heralded single photon compared to spontaneous parametric down-conversion.

Related papers

• Seeding Gaussian boson samplers with single photons for enhanced state generation [0.0]
  Non-Gaussian quantum states are crucial to fault-tolerant quantum computation with continuous-variable systems. We consider the addition of a non-Gaussian resource state, particularly single photons, to this configuration and show how it improves the qualities and generation probabilities of desired states.
  arXiv  Detail & Related papers  (2023-11-06T19:00:00Z)
• Nonradiant multiphoton states in quantum ring oligomers [37.69303106863453]
  We present a mechanism of the external coupling of two states via the radiation continuum, which allows for an increase in the lifetime of both single and double excitations. The proposed mechanism of multiphoton excitation lifetime control has a universal nature and might be applied to a wide class of open quantum systems and quantum ensembles.
  arXiv  Detail & Related papers  (2023-09-25T18:51:31Z)
• Deterministic single-photon source in the ultrastrong coupling regime [3.3774094364890623]
  We propose a deterministic single-photon source in circuit QED which can work in the ultrastrong coupling regime. Unlike the stimulated Raman adiabatic passage, the system goes back to the initial state of another period automatically after photon emission.
  arXiv  Detail & Related papers  (2022-11-11T16:35:50Z)
• Bell-inequality in path-entangled single photon and purity of single photon state [1.5924410290166868]
  We present a simple scheme to perform Bell's test and show the violation of CHSH inequality in a path-entangled single photon state. We demonstrate this experimentally by generating and controlling path-entangled state using both, heralded and un-heralded single photons.
  arXiv  Detail & Related papers  (2021-12-09T17:03:20Z)
• Limits for realizing single photons [0.0]
  We quantify how close realizable optical states can be to some target single photon in one dimension. For sufficiently short target pulses, the closest realizable states contain substantial multiphoton components.
  arXiv  Detail & Related papers  (2021-09-14T06:49:34Z)
• Investigating the coherent state detection probability of InGaAs/InP SPAD-based single-photon detectors [55.41644538483948]
  We investigate the probabilities of detecting single- and multi-photon coherent states on InGaAs/InP sine-gated and free-run avalanche diodes. We conclude that multi-photon state detection cannot be regarded as independent events of absorption of individual single-photon states.
  arXiv  Detail & Related papers  (2021-04-16T08:08:48Z)
• Single photon randomness originating from the symmetry of dipole emission and the unpredictability of spontaneous emission [55.41644538483948]
  Quantum random number generation is a key ingredient for quantum cryptography and fundamental quantum optics. We experimentally demonstrate quantum random number generation based on the spontaneous emission process. The scheme can be extended to random number generation by coherent single photons with potential applications in solid-state based quantum communication at room temperature.
  arXiv  Detail & Related papers  (2021-02-18T14:07:20Z)
• Experimental Fock-State Bunching Capability of Non-Ideal Single-Photon States [0.0]
  We introduce an experimental Fock-state bunching capability for single-photon sources, which uses phase-space interference for extreme bunching events as a quantifier. Our work demonstrates a novel collective benchmark for single-photon sources and their use in subsequent stringent applications.
  arXiv  Detail & Related papers  (2020-12-15T19:00:28Z)
• 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)
• On-demand indistinguishable single photons from an efficient and pure source based on a Rydberg ensemble [48.879585399382435]
  Single photons coupled to atomic systems have shown to be a promising platform for developing quantum technologies. Yet a bright on-demand, highly pure and highly indistinguishable single-photon source compatible with atomic platforms is lacking. In this work, we demonstrate such a source based on a strongly interacting Rydberg system.
  arXiv  Detail & Related papers  (2020-03-04T17:16:56Z)
• Quantum teleportation with hybrid entangled resources prepared from heralded quantum states [68.8204255655161]
  We propose the generation of a hybrid entangled resource (HER) The work includes a discussion about the fidelity dependence on the geometrical properties of the medium through which the HER is generated. No spectral filtering is employed in the heralding process, which emphasizes the feasibility of this scheme without compromising photon flux.
  arXiv  Detail & Related papers  (2020-02-07T21:20:50Z)

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.