Amplification of cascaded downconversion by reusing photons with a
switchable cavity
- URL: http://arxiv.org/abs/2209.11668v2
- Date: Mon, 5 Jun 2023 16:28:07 GMT
- Title: Amplification of cascaded downconversion by reusing photons with a
switchable cavity
- Authors: Alexandre Z. Leger, Samridhi Gambhir, Julien L\'eg\`ere and Deny R.
Hamel
- Abstract summary: 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.
- Score: 62.997667081978825
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: The ability to efficiently produce and manipulate nonclassical states of
light is a critical requirement for the development of quantum optical
technologies. In recent years, experiments have demonstrated that cascaded
spontaneous parametric down-conversion is a promising approach to implement
photon precertification, providing a way to overcome photon transmission losses
for quantum communication, as well as to directly produce entangled
three-photon states and heralded Bell pairs. However, the low efficiency of
this process has so far limited its applicability beyond basic experiments.
Here, we propose a scheme to amplify triplet production rates by using a fast
switch and a delay loop to reuse photons that fail to convert on the first pass
through the cascade's second nonlinear crystal. We construct a theoretical
model to predict amplification rates and verify them in an experimental
implementation. Our proof-of-concept device increases the rate of detected
photon triplets as predicted, demonstrating that the method has the potential
to dramatically improve the usefulness of cascaded down-conversion for
device-independent quantum communication and entangled state generation.
Related papers
- Photonic Quantum Receiver Attaining the Helstrom Bound [0.9674145073701151]
We propose an efficient decomposition scheme for a quantum receiver that attains the Helstrom bound in the low-photon regime for discriminating binary coherent states.
We account for realistic conditions by examining the impact of photon loss and imperfect photon detection, including the presence of dark counts.
Our scheme motivates testing quantum advantages with cubic-phase gates and designing photonic quantum computers to optimize symbol-by-symbol measurements in optical communication.
arXiv Detail & Related papers (2024-10-29T07:08:39Z) - Boosting generation rate of squeezed single-photon states by generalized photon subtraction [0.0]
Generalized photon subtraction (GPS) is a simple extension of photon subtraction (PS)
We experimentally demonstrate the generation rate improvement for 2 dB- and 4 dB-squeezed single-photon states compared to PS, by more than one order of magnitude particularly for the case of 2 dB.
Our results will accelerate the application of squeezed single-photon states to more advanced quantum information protocols.
arXiv Detail & Related papers (2024-04-30T07:09:47Z) - All-optical modulation with single-photons using electron avalanche [69.65384453064829]
We demonstrate all-optical modulation using a beam with single-photon intensity.
Our approach opens up the possibility of terahertz-speed optical switching at the single-photon level.
arXiv Detail & Related papers (2023-12-18T20:14:15Z) - Experimental realization of deterministic and selective photon addition
in a bosonic mode assisted by an ancillary qubit [50.591267188664666]
Bosonic quantum error correcting codes are primarily designed to protect against single-photon loss.
Error correction requires a recovery operation that maps the error states -- which have opposite parity -- back onto the code states.
Here, we realize a collection of photon-number-selective, simultaneous photon addition operations on a bosonic mode.
arXiv Detail & Related papers (2022-12-22T23:32:21Z) - Complete conversion between one and two photons in nonlinear waveguides
with tailored dispersion [62.997667081978825]
We show theoretically how to control coherent conversion between a narrow-band pump photon and broadband photon pairs in nonlinear optical waveguides.
We reveal that complete deterministic conversion as well as pump-photon revival can be achieved at a finite propagation distance.
arXiv Detail & Related papers (2021-10-06T23:49:44Z) - Climbing the Fock ladder: Advancing multiphoton state generation [0.0]
A scheme for the enhanced generation of higher photon-number states is realized, using an optical time-multiplexing setting.
We use a quantum feedback mechanism for already generated photons to induce self-seeding of the consecutive nonlinear process.
We compare the fidelities and success probabilities of our protocol with the common direct heralding of photon-number states.
arXiv Detail & Related papers (2021-05-08T15:38:56Z) - Rapid characterisation of linear-optical networks via PhaseLift [51.03305009278831]
Integrated photonics offers great phase-stability and can rely on the large scale manufacturability provided by the semiconductor industry.
New devices, based on such optical circuits, hold the promise of faster and energy-efficient computations in machine learning applications.
We present a novel technique to reconstruct the transfer matrix of linear optical networks.
arXiv Detail & Related papers (2020-10-01T16:04:22Z) - Entangled Photon-Pair Sources based on three-wave mixing in bulk
crystals [61.84816391246232]
Entangled photon-pairs are a critical resource in quantum communication protocols ranging from quantum key distribution to teleportation.
The increased prominence of quantum networks has led to growing interest in deployable high performance entangled photon-pair sources.
This manuscript provides a review of the state-of-the-art for bulk-optics-based SPDC sources with continuous wave pump.
arXiv Detail & Related papers (2020-07-30T10:35:06Z) - Feedforward-enhanced Fock state conversion with linear optics [0.0]
We propose an adaptive multi-photon subtraction scheme where a particular subtraction task is conditioned by all previous subtraction events.
We experimentally demonstrate the core building block of the proposal by implementing a feedforward-assisted conversion of two-photon state to a single-photon state.
The reported optimized photon subtraction scheme applies to a broad range of photonic states, including highly nonclassical Fock states and squeezed light.
arXiv Detail & Related papers (2020-04-29T18:58:02Z)
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.