Entanglement-Assisted Absorption Spectroscopy

Physical Review Letters
Haowei ShiQuntao Zhuang

Abstract

Spectroscopy is an important tool for probing the properties of materials, chemicals, and biological samples. We design a practical transmitter-receiver system that exploits entanglement to achieve a provable quantum advantage over all spectroscopic schemes based on classical sources. To probe the absorption spectra, modeled as a pattern of transmissivities among different frequency modes, we employ broadband signal-idler pairs in two-mode squeezed vacuum states. At the receiver side, we apply photodetection after optical parametric amplification. Finally, we perform a maximum likelihood decision test on the measurement results, achieving an error probability orders of magnitude lower than the optimum classical systems in various examples, including "wine tasting" and "drug testing" where real molecules are considered. In detecting the presence of an absorption line, our quantum scheme achieves the optimum performance allowed by quantum mechanics. The quantum advantage in our system is robust against noise and loss, which makes near-term experimental demonstration possible.

References

Sep 1, 1989·Physical Review A: General Physics·B C Sanders
Jul 27, 2001·Nature·V GiovannettiL Maccone
Dec 31, 2008·Physical Review Letters·Si-Hui TanJeffrey H Shapiro
Mar 17, 2011·Physical Review Letters·Stefano Pirandola
Mar 15, 2015·Physical Review Letters·Shabir BarzanjehStefano Pirandola
Apr 4, 2015·Physical Review Letters·Zheshen ZhangJeffrey H Shapiro
Feb 27, 2016·Physical Review Letters·B P AbbottUNKNOWN LIGO Scientific Collaboration and Virgo Collaboration
Feb 12, 2017·Physical Review Letters·Quntao ZhuangJeffrey H Shapiro
Mar 16, 2018·Physical Review Letters·Timothy J ProctorJacob A Dunningham
Aug 11, 2018·Physical Review Letters·Wenchao GeMichael Foss-Feig
May 2, 2020·Physical Review Letters·Yi XiaZheshen Zhang

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Citations

May 15, 2021·Optics Letters·G FrascellaM V Chekhova
Aug 8, 2021·Nature Communications·Zijiao YangXu Yi
Sep 2, 2021·The Journal of Physical Chemistry Letters·Chong YeXiangdong Zhang

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