Quantum metrology timing limits of the Hong-Ou-Mandel interferometer and of general two-photon measurements

Jordan, Kyle M.; Abrahão, Raphael A.; Lundeen, Jeff S.

doi:10.1103/physreva.106.063715

Cited by 10 publications

(3 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To be indistinguishable the photons must have similar frequencies and arrive at the beamsplitters at the same time. These arguments establish requirements on the timing and spectral resolution for the interferometer instrumentation [14,[22][23][24].…”

Section: Introduction and Basic Conceptsmentioning

confidence: 91%

Towards Quantum Telescopes: Demonstration of a Two-Photon Interferometer for Quantum-Assisted Astronomy

Crawford¹,

Denis²,

Keach³

et al. 2023

Preprint

View full text Add to dashboard Cite

Classical optical interferometery requires maintaining live, phase-stable links between telescope stations. This requirement greatly adds to the cost of extending to long baseline separations, and limits on baselines will in turn limit the achievable angular resolution. Here we describe a novel type of two-photon interferometer for astrometry, which uses photons from two separate sky sources and does not require an optical link between stations. Such techniques may make large increases in interferometric baselines practical, even by orders of magnitude, with corresponding improvement in astrometric precision benefiting numerous fields in astrophysics. We tested a benchtop analogue version of the two-source interferometer and unambiguously observe correlated behavior in detections of photon pairs from two thermal light sources, in agreement with theoretical predictions. This work opens new possibilities in future astronomical measurements.

show abstract

Section: Introduction and Basic Conceptsmentioning

confidence: 91%

Towards Quantum Telescopes: Demonstration of a Two-Photon Interferometer for Quantum-Assisted Astronomy

Crawford¹,

Denis²,

Keach³

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…On the other hand, the FI value can be increased by optimizing the parameters affecting the visibility and the width of the HOM interference dip. Despite the experimental demonstration of nanometer path length (few-attosecond timing) precision [12,21] and a recent theoretical study on the tailoring of the spectral properties [22,23] of photon pairs to achieve precision beyond the value reported in the laboratory condition, the width of the HOM interference dip governed by the bandwidth of the pair photons remained the limiting factor for optimal measurement precision [12,13,24,25] in HOM interferometer based dynamic (realtime) or fast sensing applications. As such, ultra-broadband photon sources have long been hailed as a vital prerequisite for ultraprecise HOM interferometry.…”

Section: Introductionmentioning

confidence: 99%

Near‐Video Frame Rate Quantum Sensing Using Hong–Ou–Mandel Interferometry

Singh,

Kumar,

Sharma

et al. 2023

Adv Quantum Tech

View full text Add to dashboard Cite

Hong–Ou–Mandel (HOM) interference, bunching of two indistinguishable photons on a balanced beam‐splitter, has emerged as a promising tool for quantum sensing. There is a need for wide spectral‐bandwidth photon pairs (for high‐resolution sensing) with high brightness (for fast sensing). Here, the generation of photon‐pairs with flexible spectral‐bandwidth even using single‐frequency, continuous‐wave diode laser enabling high‐precision, real‐time sensing is showed. Using 1‐mm‐long periodically‐poled KTP crystal, degenerate, photon‐pairs with spectral‐bandwidth of 163.42±1.68 nm are produced resulting in a HOM‐dip width of 4.01±0.04 m to measure a displacement of 60 nm, and sufficiently high brightness to enable the measurement of vibrations with amplitude of 205 ± 0.75 nm and frequency of 8 Hz. Fisher‐information (FI) and maximum likelihood estimation enables optical delay measurements as small as 4.97 nm with precision (Cramér–Rao bound) and accuracy of 0.89 and 0.54 nm, respectively, therefore showing HOM sensing capability for real‐time, precision‐augmented, in‐field quantum sensing applications.

show abstract

“…On the other hand, the FI value can be increased by optimizing the parameters affecting the visibility and the width of the HOM interference dip. Despite the experimental demonstration of nanometer path length (few-attosecond timing) precision [12,21] and a recent theoretical study on the tailoring of the spectral properties [22,23] of photon pairs to achieve precision beyond the value reported in the laboratory condition, the width of the HOM interference dip governed by the spectral bandwidth of the pair photons remained the limiting factor for optimal measurement precision [12,13,24,25] in HOM interferometer based dynamic (real-time) or fast sensing applications. As such, ultra-broadband photon sources have long been hailed as a vital prerequisite for ultra-precise HOM interferometry.…”

Section: Introductionmentioning

confidence: 99%

Near-video frame rate quantum sensing using Hong-Ou-Mandel interferometry

Singh¹,

Kumar²,

Sharma³

et al. 2023

Preprint

View full text Add to dashboard Cite

Hong-Ou-Mandel (HOM) interference, bunching of two indistinguishable photons on a balanced beam-splitter, has emerged as a promising tool for quantum sensing. There is a need for wide spectral-bandwidth photon pairs (for high-resolution sensing) with high brightness (for fast sensing). Here we show the generation of photon-pairs with flexible spectral bandwidth even using single-frequency, continuous-wave diode laser enabling high-precision, real-time sensing. Using 1-mm-long periodically-poled KTP crystal, we produced degenerate photon-pairs with a spectral bandwidth of 163.42±1.68 nm resulting in a HOM-dip width of 4.01±0.04 μm to measure a displacement of 60 nm, and sufficiently high brightness to enable the measurement of vibrations with an amplitude of 205 ± 0.75 nm and frequency of 8 Hz. Fisher-information and maximum likelihood estimation enables optical delay measurements as small as 4.97 nm with precision (Cramér-Rao bound) and accuracy of 0.89 and 0.54 nm, respectively, therefore showing HOM sensing capability for real-time, precision-augmented, in-field quantum sensing applications

show abstract

Quantum metrology timing limits of the Hong-Ou-Mandel interferometer and of general two-photon measurements

Cited by 10 publications

References 24 publications

Towards Quantum Telescopes: Demonstration of a Two-Photon Interferometer for Quantum-Assisted Astronomy

Towards Quantum Telescopes: Demonstration of a Two-Photon Interferometer for Quantum-Assisted Astronomy

Near‐Video Frame Rate Quantum Sensing Using Hong–Ou–Mandel Interferometry

Near-video frame rate quantum sensing using Hong-Ou-Mandel interferometry

Contact Info

Product

Resources

About