Frequency-bin entanglement from domain-engineered down-conversion
- URL: http://arxiv.org/abs/2201.07259v1
- Date: Tue, 18 Jan 2022 19:00:29 GMT
- Title: Frequency-bin entanglement from domain-engineered down-conversion
- Authors: Christopher L. Morrison, Francesco Graffitti, Peter Barrow, Alexander
Pickston, Joseph Ho, and Alessandro Fedrizzi
- Abstract summary: We present a single-pass source of discrete frequency-bin entanglement which does not use filtering or a resonant cavity.
We use a domain-engineered nonlinear crystal to generate an eight-mode frequency-bin entangled source at telecommunication wavelengths.
- Score: 101.18253437732933
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: Frequency encoding is quickly becoming an attractive prospect for quantum
information protocols owing to larger Hilbert spaces and increased resilience
to noise compared to other photonic degrees of freedom. To fully make use of
frequency encoding as a practical paradigm for QIP, an efficient and simple
source of frequency entanglement is required. Here we present a single-pass
source of discrete frequency-bin entanglement which does not use filtering or a
resonant cavity. We use a domain-engineered nonlinear crystal to generate an
eight-mode frequency-bin entangled source at telecommunication wavelengths. Our
approach leverages the high heralding efficient and simplicity associated with
bulk crystal sources.
Related papers
- Purifying quantum-dot light in a coherent frequency interface [39.58317527488534]
Quantum networks operate in the telecom wavelengths to take advantage of low-loss transmission in optical fibres.
Bright quantum dots (QDs) emitting highly indistinguishable quantum states of light, such as InGaAs QDs, often emit photons in the near infrared.
We report a method for simultaneously implementing spectral purification and frequency shifting of single photons from QD sources to the C-band in a periodically poled Lithium Niobate waveguide.
arXiv Detail & Related papers (2024-07-11T18:02:43Z) - FourierMamba: Fourier Learning Integration with State Space Models for Image Deraining [71.46369218331215]
Image deraining aims to remove rain streaks from rainy images and restore clear backgrounds.
We propose a new framework termed FourierMamba, which performs image deraining with Mamba in the Fourier space.
arXiv Detail & Related papers (2024-05-29T18:58:59Z) - Frequency-Aware Deepfake Detection: Improving Generalizability through
Frequency Space Learning [81.98675881423131]
This research addresses the challenge of developing a universal deepfake detector that can effectively identify unseen deepfake images.
Existing frequency-based paradigms have relied on frequency-level artifacts introduced during the up-sampling in GAN pipelines to detect forgeries.
We introduce a novel frequency-aware approach called FreqNet, centered around frequency domain learning, specifically designed to enhance the generalizability of deepfake detectors.
arXiv Detail & Related papers (2024-03-12T01:28:00Z) - WaveNeRF: Wavelet-based Generalizable Neural Radiance Fields [149.2296890464997]
We design WaveNeRF, which integrates wavelet frequency decomposition into MVS and NeRF.
WaveNeRF achieves superior generalizable radiance field modeling when only given three images as input.
arXiv Detail & Related papers (2023-08-09T09:24:56Z) - Quantum-inspired optimization for wavelength assignment [51.55491037321065]
We propose and develop a quantum-inspired algorithm for solving the wavelength assignment problem.
Our results pave the way to the use of quantum-inspired algorithms for practical problems in telecommunications.
arXiv Detail & Related papers (2022-11-01T07:52:47Z) - High-Dimensional Entanglement for Quantum Communication in the Frequency
Domain [0.0]
High-dimensional photonic entanglement is a promising candidate for error-protected quantum information processing.
This study shows how to harness the large frequency-entanglement inherent in standard continuous-wave spontaneous down-conversion processes.
arXiv Detail & Related papers (2022-06-02T10:08:28Z) - Design Methodologies for Integrated Quantum Frequency Processors [0.0]
We introduce a model for the design of quantum frequency processors.
We estimate the performance of single and parallel frequency-bin Hadamard gates.
Our model is general, simple to use, and extendable to other material platforms.
arXiv Detail & Related papers (2022-04-26T13:57:12Z) - Frequency multiplexed entanglement for continuous-variable quantum key
distribution [0.0]
Quantum key distribution with continuous variables already uses advantageous high-speed single-mode homodyne detection with low electronic noise at room temperature.
The distance for secure key transmission through lossy channels can approach 300 km in current optical fibers.
We demonstrate the positive outcome of this methodology on the experimentally characterized frequency-multiplexed entangled source of femtosecond optical pulses.
arXiv Detail & Related papers (2021-10-27T15:18:16Z) - Ion-Photonic Frequency Qubit Correlations for Quantum Networks [0.0]
Efficiently scaling quantum networks to long ranges requires local processing nodes to perform basic computation and communication tasks.
Most ions suitable for quantum computing emit photons in visible to near ultraviolet (UV) frequency ranges poorly suited to long-distance fibre optical based networking.
We demonstrate a frequency encoding ion-photon entanglement protocol in $171$Yb$+$ with correlations equivalent to 92.4(8)% fidelity using a purpose-built UV hyperfine spectrometer.
arXiv Detail & Related papers (2021-04-12T03:55:07Z) - Frequency-Domain Quantum Interference with Correlated Photons from an
Integrated Microresonator [96.25398432840109]
We report frequency-domain Hong-Ou-Mandel interference with spectrally distinct photons generated from a chip-based microresonator.
Our work establishes four-wave mixing as a tool for selective high-fidelity two-photon operations in the frequency domain.
arXiv Detail & Related papers (2020-03-14T01:48:39Z)
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.