Unconditional quantum teleportational advantage of single photons

• URL: http://arxiv.org/abs/2511.08951v1
• Date: Thu, 13 Nov 2025 01:20:51 GMT
• Title: Unconditional quantum teleportational advantage of single photons
• Abstract summary: Direct transmission results in a small fraction of photons surviving over long distances.<n>Quantum teleportation offers a "disembodied" way of transferring particles through a virtual channel.<n>No previous quantum teleportation of single photons has shown a higher survival probability than using direct transmission.
• Score: 4.621870868592297
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Photon loss is the biggest enemy in quantum communications. Direct transmission typically results in a small fraction of photons surviving over long distances, hindering advanced applications such as loophole-free Bell tests and device-independent quantum key distribution. Quantum teleportation offers a "disembodied" way of transferring particles through a virtual channel--quantum entanglement--which, in principle, could overcome the photon transmission loss. Experimentally, however, no previous quantum teleportation of single photons has shown a higher survival probability than using direct transmission. To overcome this challenge, here we first propose and demonstrate an all-optical scheme for remote preparation of entangled photons. Through an effective 15-dB channel loss, we realize a heralding efficiency of 82% for event-ready entangled photons. Based on the prior distributed entanglement, we demonstrate that teleportation-based transmission efficiency offers a 2.95-fold enhancement, compared to using direct transmission through the same channel, therefore establishing an unconditional teleportational advantage.

Related papers

• Integrated polarization-entangled photon source for wavelength-multiplexed quantum networks [49.82426139329382]
  We present a simple yet high-performance on-chip polarization-entangled photon-pair source on thin-film lithium niobate (TFLN)<n>Our device employs dual quasi-phase matching (D-QPM) that sequentially supports type-0 and type-I spontaneous parametric down-conversion in a single nanophotonic waveguide.<n>We realize wavelength-multiplexed entanglement distribution in a four-user quantum network deployed over metropolitan fiber links up to 50 km.
  arXiv  Detail & Related papers  (2025-11-27T18:30:01Z)
• Deterministic quantum teleportation of a path-encoded state using entangled photons [2.331828779757202]
  We show a deterministic teleportation of an arbitrary qubit state using only a polarization entangled photon pair in a linear optical setup.<n>This enables a deterministic teleportation of a qubit state in an optical scheme with high fidelity.
  arXiv  Detail & Related papers  (2025-02-07T16:44:43Z)
• Quantum Teleportation with Telecom Photons from Remote Quantum Emitters [0.0]
  The quest for a global quantum internet is based on the realization of a scalable network which requires quantum hardware with exceptional performance. Here we realize full-photonic quantum teleportation employing one of the most promising platforms, i.e. semiconductor quantum dots. The frequency mismatch between the triggered sources is erased using two polarization-preserving quantum frequency converters.
  arXiv  Detail & Related papers  (2024-11-19T22:42:36Z)
• Teleportation of a genuine single-rail vacuum-one-photon qubit generated via a quantum dot source [0.0]
  We enable the teleportation of pure vacuum-one-photon qubits encoded in a single spatial mode.<n>Within our setup, we can both teleport genuine single-rail vacuum-one-photon qubits and perform entanglement swapping.
  arXiv  Detail & Related papers  (2023-10-31T14:59:39Z)
• Increasing Quantum Communication Rates Using Hyperentangled Photonic States [10.785645909949073]
  Entanglement is a fundamental resource for quantum communication and information processing. We propose a technique for achieving higher transmission rates for quantum communication by using hyperentangled states.
  arXiv  Detail & Related papers  (2023-07-12T07:35:49Z)
• Quantum Optical Memory for Entanglement Distribution [52.77024349608834]
  Entanglement of quantum states over long distances can empower quantum computing, quantum communications, and quantum sensing. Over the past two decades, quantum optical memories with high fidelity, high efficiencies, long storage times, and promising multiplexing capabilities have been developed.
  arXiv  Detail & Related papers  (2023-04-19T03:18:51Z)
• QUICK$^3$ -- Design of a satellite-based quantum light source for quantum communication and extended physical theory tests in space [73.86330563258117]
  Single photon source can enhance secure data rates in satellite-based quantum key distribution scenarios. payload is being integrated into a 3U CubeSat and scheduled for launch in 2024 into low Earth orbit.
  arXiv  Detail & Related papers  (2023-01-26T15:34:11Z)
• 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)
• 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)
• Quantum Teleportation with Imperfect Quantum Dots [0.0]
  Efficient all-photonic quantum teleportation requires fast and deterministic sources of highly indistinguishable and entangled photons. We show that the average teleportation fidelity can be raised from below the classical limit to 0.842(14) using a quantum dot with sub-par entanglement and photon indistinguishability.
  arXiv  Detail & Related papers  (2020-06-04T09:46:42Z)
• 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.