Quantum imaging and sensing

Yichang Shou, Qiang Yang, Jiawei Liu +2 more

ABSTRACT Weak measurement has emerged as a pivotal technique in precision metrology, utilizing unique amplification effects to enhance the capabilities of quantum sensing and quantum imaging. Quantum sensing can provide systems with unprecedented accuracy and sensitivity by utilizing its quantum properties. Quantum imaging uses entangled photon states to capture information, enabling signal‐to‐noise ratio and resolution that surpass the limits of classical imaging. The synergistic integration of weak measurement with quantum sensing and imaging paves the way for next‐generation technologies with practical value, significantly advancing frontiers of precision metrology and imaging science. This review elucidates the fundamental theory of weak value amplification and comprehensively discusses the performance of weak measurement strategies in quantum sensing and imaging frameworks, highlighting both classical techniques and emerging quantum applications. It covers four main directions: nanostructure, 2D atomic crystal, biochemistry, and optical imaging, including from structural parameters characterization to chemical reaction sensing to nonlocal weak measurement microscopy. This work aims to discuss recent advances in weak measurement applications for quantum sensing and imaging platforms, while outlining future development opportunities arising from the convergence of these three fields.

Hugo Defienne, Warwick P. Bowen, Maria V. Chekhova +5 more

Ray LaPierre

Francesco Vincenzo Pepe, Cristofaro Abbatista, Leonardo Amoruso +1 more

We discuss quantum imaging protocols and their possible application in remote sensing and Earth Observation. In particular, we shall focus on a novel quantum imaging protocol, named Correlation Plenoptic Imaging (CPI), which exploits the spatio-temporal correlations of light to perform 3D imaging and refocusing of out-of-focus objects, while maintaining the highest possible resolution, and offering the possibility of turbulence attenuation.

Mikhail I. Kolobov

Yang Liu, Jianyong Hu, Hongqi Niu +9 more

Quantum imaging based on entangled light sources exhibits enhanced background resistance compared to conventional imaging techniques in low-light conditions. However, direct imaging of dynamic targets remains challenging due to the limited count rate of entangled photons. In this paper, we propose a quantum imaging method based on quantum compressed sensing that leverages the strong correlation characteristics of entangled photons and the randomness inherent in photon pair generation and detection. This approach enables the construction of a compressed sensing system capable of directly imaging high-speed dynamic targets. The results demonstrate that our system successfully achieves imaging of a target rotating at a frequency of 10 kHz, while maintaining an impressive data compression rate of 10 −6 . This proposed method introduces a pioneering approach for the practical implementation of quantum imaging in real-world scenarios.