Zobrazeno 1 - 10
of 101
pro vyhledávání: '"Ihn, Yong"'
We present an ultrabright polarization-entangled photon source that is optimally coupled into single-mode fibers (SMFs). This study theoretically and experimentally examines the characteristics of spontaneous parametric down-conversion (SPDC) photons
Externí odkaz:
http://arxiv.org/abs/2409.15620
In practical applications to free-space quantum communications, the utilization of active beam coupling and stabilization techniques offers notable advantages, particularly when dealing with limited detecting areas or coupling into single-mode fibers
Externí odkaz:
http://arxiv.org/abs/2310.17900
Autor:
Heo, Jaesung, Kim, Junghyun, Jeong, Taek, Ihn, Yong Sup, Kim, Duk Y., Kim, Zaeill, Jo, Yonggi
Publikováno v:
Optica 10(11), 1461 (2023)
In this paper, we propose a novel quantum-secured single-pixel imaging method that utilizes non-classical correlations of a photon pair. Our method can detect any attempts to deceive it by exploiting a non-classical correlation of photon pairs while
Externí odkaz:
http://arxiv.org/abs/2209.06365
We present a quantum-correlation-based free-space optical(FSO) link over 250 m using an outdoor active reflector 125 m from the transceiver station. The performance of free-space optical communication can be significantly degraded by atmospheric turb
Externí odkaz:
http://arxiv.org/abs/2206.14978
Efficient photon-photon interaction is one of the key elements for realizing quantum information processing. The interaction, however, must often be mediated through an atomic medium due to the bosonic nature of photons, and the interaction time, whi
Externí odkaz:
http://arxiv.org/abs/2204.03886
Autor:
Kim, Junghyun, Lee, Sangkyung, Jo, Yonggi, Lee, Su-Yong, Jeong, Taek, Kim, Dongkyu, Kim, Duk Y., Kim, Zaeill, Ihn, Yong Sup
We present a method to classically enhance noise-robustness of single-pixel imaging in photon counting regime with a pulsed source. By using time-domain cross-correlations between temporal profiles of a pulsed source and received signals, our scheme
Externí odkaz:
http://arxiv.org/abs/2112.06441
Autor:
Kim, Junghyun, Jeong, Taek, Lee, Su-Yong, Kim, Duk Y., Kim, Dongkyu, Le, 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 signal-to-noise ratio. However, it is still a challenge to achieve a strong resilience to background noise and losses for practica
Externí odkaz:
http://arxiv.org/abs/2112.01648
Autor:
Lee, Su-Yong, Jo, Yonggi, Jeong, Taek, Kim, Junghyun, Kim, Dong Hwan, Kim, Dongkyu, Kim, Duk Y., Ihn, Yong Sup, Kim, Zaeill
We propose observable bounds for Gaussian illumination to maximize the signal-to-noise ratio, which minimizes the discrimination error between the presence and absence of a low-reflectivity target using Gaussian states. The observable bounds are achi
Externí odkaz:
http://arxiv.org/abs/2106.12109
Autor:
Jo, Yonggi, Jeong, Taek, Kim, Junghyun, Kim, Duk Y., Ihn, Yong Sup, Kim, Zaeill, Lee, Su-Yong
We propose Gaussian quantum illumination(QI) protocol exploiting asymmetrically squeezed two-mode(ASTM) state that is generated by applying single-mode squeezing operations on each mode of an initial two-mode squeezed vacuum(TMSV) state, in order to
Externí odkaz:
http://arxiv.org/abs/2103.17006
Publikováno v:
Optics Express 29(5), 6834 (2021)
In recent development of quantum technologies, a frequency conversion of quantum signals has been studied widely. We investigate the optic-microwave entanglement that is generated by applying an electro-optomechanical frequency conversion scheme to o
Externí odkaz:
http://arxiv.org/abs/2101.02508