Quantum information with time frequency states: Metrology and error correction

E. Descamps; N. Fabre; A. Keller; P. Milman

doi:10.1117/12.3016782

6 June 2024 Quantum information with time frequency states: Metrology and error correction

E. Descamps, N. Fabre, A. Keller, P. Milman

Proceedings Volume PC12993, Quantum Technologies 2024; PC129930N (2024) https://doi.org/10.1117/12.3016782
Event: SPIE Photonics Europe, 2024, Strasbourg, France

Conference Poster

Abstract

This study explores the versatile framework of time-frequency variables in the context of quantum information, with a specific focus on the use of single photons as a paradigmatic system. In our first analysis, we discern the contributions of intensity and spectral resources, unveiling their impacts on the precision of parameter estimation as the number of probes increases. Remarkably, we demonstrate the potential for quadratic scaling using quantum mode correlations and derive mathematical expressions for the optimal states. In a second investigation, inspired by the state achieving the Heisenberg limit, we introduce a novel method for encoding GKP (Gottesman, Kitaev, and Preskill) states in our paradigmatic system. We analyze the scalability of error detection and correction with the total photon number. We demonstrate that these codes can effectively correct displacements in time-frequency phase space and photon losses. This research highlights the unifying potential of time-frequency variables as a platform for diverse quantum applications.

Citation Download Citation

E. Descamps, N. Fabre, A. Keller, and P. Milman "Quantum information with time frequency states: Metrology and error correction", Proc. SPIE PC12993, Quantum Technologies 2024, PC129930N (6 June 2024); https://doi.org/10.1117/12.3016782

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