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Quantum enhanced measurement of an optical frequency comb

Physics

Quantum enhanced measurement of an optical frequency comb

Y. Cai, J. Roslund, et al.

This groundbreaking research by Y. Cai, J. Roslund, V. Thiel, C. Fabre, and N. Treps showcases a novel method for single-shot multi-parameter estimation of optical frequency combs, achieving measurements that surpass the standard quantum limit. With enhanced signal-to-noise ratios using squeezed states, this study paves the way for advancements in ultrafast quantum metrology and multimode quantum information processing.

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Playback language: English
Abstract
This paper demonstrates single-shot multi-parameter estimation of an optical frequency comb surpassing the standard quantum limit. A multi-pixel spectrally resolved (MPSR) apparatus simultaneously determines mean energy, central frequency, and spectral bandwidth of ultrafast pulses. Using a quantum frequency comb with multiple squeezed states, signal-to-noise ratios exceed the standard quantum limit. This approach is applicable to ultrafast quantum metrology and multimode quantum information processing.
Publisher
npj Quantum Information
Published On
May 26, 2021
Authors
Y. Cai, J. Roslund, V. Thiel, C. Fabre, N. Treps
Tags
optical frequency comb
quantum limit
multi-pixel spectrally resolved
ultrafast pulses
quantum metrology
squeezed states
quantum information processing

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