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quant-ph2026
Experimental Quantum Tomography of Multimode Gaussian States
Chan Roh, Geunhee Gwak, Young-Do Yoon +1
Multimode Gaussian states are a versatile resource for quantum information technologies and have been realized across a wide range of physical platforms. Recent progress in the lar…
quant-ph2026
Quantum Metrology under Coarse-Grained Measurement
Byeong-Yoon Go, Geunhee Gwak, Young-Do Yoon +4
While quantum metrology enables measurement precision beyond classical limits, its performance is often susceptible to experimental imperfections. Most prior studies have focused o…
quant-ph2021★ 8 cited
Robust squeezed light against mode mismatch using a self imaging optical parametric oscillator
Chan Roh, Geunhee Gwak, Young-Sik Ra
We present squeezed light that is robust against spatial mode mismatch (beam displacement, tilt, and beam-size difference), which is generated from a self-imaging optical parametri…