Search Results - "Sangkyung Lee"

Spectral analysis of spin noise in an optically spin-polarized stochastic Bloch equation driven by noisy magnetic fields by Kim, Minwoo M., Lee, Sangkyung

“…We theoretically analyze an optically spin-polarized collection of atoms, which serves as a basis for atomic sensors. Assuming that the intrinsic atomic spin…”
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Lossy and noisy channel simulation in computational ghost imaging by using noise-induced pattern by Heo, Jaesung, Kim, Junghyun, Jeong, Taek, Lee, Sangkyung, Ihn, Yong Sup, Kim, Zaeill, Jo, Yonggi

“…We provide a method to evaluate effects of a lossy and noisy optical channel in computational ghost imaging (CGI) technique. Instead of preparing an external…”
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Quantum illumination receiver using double homodyne detection by Jo, Yonggi, Lee, Sangkyung, Ihn, Yong Sup, Kim, Zaeill, Lee, Su-Yong

“…A quantum receiver is an essential element of quantum illumination (QI), which outperforms its classical counterpart, called classical illumination. However,…”
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Cancellation of collisional frequency shifts in optical lattice clocks with Rabi spectroscopy by Lee, Sangkyung, Park, Chang Yong, Lee, Won-Kyu, Yu, Dai-Hyuk

“…We analyze both the s- and p-wave collision induced frequency shifts and propose an over-π pulse scheme to cancel the shifts in optical lattice clocks…”
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Measuring scale factor of atomic spin gyroscope and closed-loop operation by Yu, Hoon, Park, Myoung Woo, Choi, Seok Won, Lee, Sangkyung, Yim, Sin Hyuk

“…The response of an atomic spin gyroscope to the AC magnetic field shows a dispersion-like signal as the field frequency. When a system rotates, the curve…”
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Intrinsic Time Zero Dielectric Breakdown Characteristics of HfAlO Alloys by Jin Ju Kim, Minwoo Kim, Ukjin Jung, Kyung Eun Chang, Sangkyung Lee, Yonghun Kim, Young Gon Lee, Rino Choi, Byoung Hun Lee

“…A thermochemical model describing the relationship between the dielectric breakdown field (EBD) and dielectric constant (k) of high- k dielectric has been…”
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Strong spin-lattice coupling in multiferroic hexagonal manganite YMnO3 probed by ultrafast optical spectroscopy by Jang, Kyeong-Jin, Lee, Han-gyoel, Lee, Sangkyung, Ahn, Jaewook, Ahn, Jai Seok, Hur, Namjung, Cheong, Sang-Wook

“…We report the observation of spin-lattice coupling in multiferroic YMnO3 by femtosecond near-infrared pump and probe spectroscopy. A coherent 31 GHz acoustic…”
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An Yb optical lattice clock: Current status at KRISS by Yu, Dai-Hyuk, Park, Chang Yong, Lee, Won-Kyu, Lee, Sangkyung, Park, Sang Eon, Mun, Jongchul, Lee, Sang-Bum, Kwon, Taeg Yong

“…The current status of an Yb optical lattice clock at the Korea Research Institute of Standards and Science (KRISS) is reported. The systematic uncertainty of…”
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Reversed Peaks of Saturated Absorption Spectra of Atomic Rubidium by Lee, Sangkyung, Lee, Kanghee, Ahn, Jaewook

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Strong-field quantum control of energy ladder climbing by Sangkyung Lee, Jongseok Lim, Jaewook Ahn

“…We demonstrate coherent control of multiphoton absorption in a dynamically shifted energy level structure. In a three-level model system of atomic sodium, we…”
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Quantum control of cold rubidium atoms via phase gating by Sangkyung Lee, Han-gyeol Lee, Junwoo Cho, Chang Yong Park, Jaewook Ahn

“…We demonstrate π phase-gate control of cold rubidium atoms in a magneto-optical trap. For this, we utilize ultrafast pulse-shaping technique, and the quantum…”
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Quantum control of two-photon inter-excited states transitions by Jongseok Lim, Han-gyeol Lee, Sangkyung Lee, Jaewook Ahn

“…We demonstrate quantum control of two-photon inter-excited states transitions in a V-type atomic system. By varying linear and quadratic chirps, we project the…”
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Strong-field two-photon transition by phase shaping by Lee, Sangkyung, Lim, Jongseok, Ahn, Jaewook, Hakobyan, Vahe, Guérin, Stéphane

“…We demonstrate the ultrafast coherent control of a nonlinear two-photon absorption in a dynamically shifted energy level structure. We use a spectrotemporal…”
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Heralded single-pixel imaging with high loss-resistance and noise-robustness by Kim, Junghyun, Jeong, Taek, Lee, Su-Yong, Kim, Duk Y., Kim, Dongkyu, Lee, Sangkyung, Ihn, Yong Sup, Kim, Zaeill, Jo, Yonggi

“…Imaging with non-classically correlated photon-pairs takes advantages over classical limits in terms of sensitivity and a signal-to-noise ratio. However, it is…”
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A Hybrid Approach Combining Data-Driven and Signal-Processing-Based Methods for Fault Diagnosis of a Hydraulic Rock Drill by Oh, Hye Jun, Yoo, Jinoh, Lee, Sangkyung, Chae, Minseok, Park, Jongmin, Youn, Byeng D

“…This study presents a novel method for fault diagnosis of a hydrostatic rock drill. Hydraulic rock drills suffer from both domain discrepancy issues that arise…”
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Performance comparison between $$^{87}$$Rb-natural Xe–$$\hbox {N}_2$$ and $$^{87}$$Rb–$$^{129}$$Xe–$$^{131}$$Xe–$$\hbox {N}_2$$ atom spin gyroscopes by Lee, Sangkyung, Lee, Deok Young, Shim, Kyu Min, Yim, Sin Hyuk

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Performance comparison between 87Rb‑natural Xe–N2 and 87 Rb–129Xe–131Xe–N2 atom spin gyroscopes by Lee Sangkyung, Lee Deok Young, Shim Kyu Min, Yim Sin Hyuk

“…We have developed an atom spin gyroscope that uses a Rb–Xe vapor cell. The signal-to-noise ratio (SNR) and the angular random walk (ARW) of a Rb-natural Xe–N 2…”
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Performance comparison between 87Rb-natural Xe–N2 and 87Rb–129Xe–131Xe–N2 atom spin gyroscopes by Lee, Sangkyung, Lee, Deok Young, Shim, Kyu Min, Yim, Sin Hyuk

“…We have developed an atom spin gyroscope that uses a Rb–Xe vapor cell. The signal-to-noise ratio (SNR) and the angular random walk (ARW) of a Rb-natural Xe– N…”
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A Hybrid Approach Combining Data-Driven and Signal-ProcessingBased Methods for Fault Diagnosis of a Hydraulic Rock Drill by Hye Jun Oh, Jinoh Yoo, Sangkyung Lee, Minseok Chae, Jongmin Park, Byeng D. Youn

“…This study presents a novel method for fault diagnosis of a hydrostatic rock drill. Hydraulic rock drills suffer from both domain discrepancy issues that arise…”
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Ultrafast Ramsey interferometry to implement cold atomic qubit gates by Lim, Jongseok, Lee, Han-gyeol, Lee, Sangkyung, Park, Chang-Yong, Ahn, Jaewook

“…Quantum computing is based on unitary operations in a two-level quantum system, a qubit, as the fundamental building block and the ability to perform qubit…”
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