Experimental demonstration of time measurement precision limitations in Hong-Ou-Mandel interferometry

O. Meskine; E. Descamps; A. Keller; A. Lemaitre; F. Baboux; S. Ducci; P. Milman

doi:10.1117/12.3016791

11 June 2024 Experimental demonstration of time measurement precision limitations in Hong-Ou-Mandel interferometry

O. Meskine, E. Descamps, A. Keller, A. Lemaitre, F. Baboux, S. Ducci, P. Milman

Proceedings Volume PC12993, Quantum Technologies 2024; PC1299305 (2024) https://doi.org/10.1117/12.3016791
Event: SPIE Photonics Europe, 2024, Strasbourg, France

Abstract

In quantum mechanics, the precision achieved in parameter estimation using a quantum state as a probe is determined by the measurement strategy employed. The quantum precision limit, a fundamental boundary, is defined by the intrinsic characteristics of the state and its dynamics. Theoretical results have revealed that in interference measurements with two possible outcomes, like the Hong Ou-Mandel interference, this limit can be reached under ideal conditions of perfect visibility and zero losses. However, in practice, this cannot be achieved, so precision never reaches the quantum limit. But how do experimental setups approach precision limits under realistic circumstances? In this work, we provide a general model for precision limits in two-photon Hong-Ou-Mandel interferometry for non-perfect visibility and validate it experimentally using different quantum states. A remarkable ratio of 0.97 between the experimental precision and the quantum limit is observed, establishing a new benchmark in the field.

Conference Presentation

Citation Download Citation

O. Meskine, E. Descamps, A. Keller, A. Lemaitre, F. Baboux, S. Ducci, and P. Milman "Experimental demonstration of time measurement precision limitations in Hong-Ou-Mandel interferometry", Proc. SPIE PC12993, Quantum Technologies 2024, PC1299305 (11 June 2024); https://doi.org/10.1117/12.3016791

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
PRESENTATION

WATCH
PRESENTATION SAVE TO MY LIBRARY

GET CITATION

KEYWORDS

Quantum limits

Quantum experiments

Quantum interferometry

Time metrology

Visibility

Quantum interference

Quantum probes

Show All Keywords

Keywords/Phrases

Search In:

Publication Years