120 citations · 203 across the 6 of their papers we have counts for
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Quantum illumination with non-Gaussian states: Bounds on the minimum error probability using quantum Fisher information
Changsuk Noh, Changhyoup Lee, Su-Yong Lee
Quantum illumination employs entangled states to detect a weakly reflective target in a thermal bath. The performance of a given entangled state is evaluated from the minimum error…
Quantum Plasmonic Sensors
Changhyoup Lee, Benjamin Lawrie, Raphael Pooser +3
The extraordinary sensitivity of plasmonic sensors is well known in the optics and photonics community. These sensors exploit simultaneously the enhancement and the localization of…
Experimental quantum polarimetry using heralded single photons
Seung-Jin Yoon, Joong-Sung Lee, Carsten Rockstuhl +2
We perform experimental quantum polarimetry using a heralded single photon to analyze the optical activity of linearly polarized light traversing a chiral medium. Three kinds of es…
Optimal Distributed quantum sensing using Gaussian states
Changhun Oh, Changhyoup Lee, Seok Hyung Lie +1
We find and investigate the optimal scheme of quantum distributed Gaussian sensing for estimation of the average of independent phase shifts. We show that the ultimate sensitivity…
Using states with a large photon number variance to increase quantum Fisher information in single-mode phase estimation
Changhyoup Lee, Changhun Oh, Hyunseok Jeong +2
When estimating the phase of a single mode, the quantum Fisher information for a pure probe state is proportional to the photon number variance of the probe state. In this work, we…
Optimal measurements for quantum fidelity between Gaussian states and its relevance to quantum metrology
Changhun Oh, Changhyoup Lee, Leonardo Banchi +3
Quantum fidelity is a measure to quantify the closeness of two quantum states. In an operational sense, it is defined as the minimal overlap between the probability distributions o…