Zobrazeno 1 - 10
of 152
pro vyhledávání: '"Lim, Hyang-Tag"'
Multiple-phase estimation exploiting quantum states has broad applications in novel sensing and imaging technologies. However, the unavoidable presence of lossy environments in practical settings often diminishes the precision of phase estimations. T
Externí odkaz:
http://arxiv.org/abs/2407.16246
Recently, remote-controlled quantum information processing has been proposed for its applications in secure quantum processing protocols and distributed quantum networks. For remote-controlled quantum gates, the experimental realization of controlled
Externí odkaz:
http://arxiv.org/abs/2405.15931
Autor:
Zo, Wan, Bilash, Bohdan, Lee, Donghwa, Kim, Yosep, Lim, Hyang-Tag, Oh, Kyunghwan, Assad, Syed M., Kim, Yong-Su
Entanglement shared between distant parties is a key resource in quantum networks. However, photon losses in quantum channels significantly reduce the success probability of entanglement sharing, which scales quadratically with the channel transmissi
Externí odkaz:
http://arxiv.org/abs/2405.03951
Autor:
Lee, Jinil, Song, Wooyeong, Lee, Donghwa, Kim, Yosep, Lee, Seung-Woo, Lim, Hyang-Tag, Jung, Hojoong, Han, Sang-Wook, Kim, Yong-Su
Variational quantum eigensolver (VQE), which combines quantum systems with classical computational power, has been arisen as a promising candidate for near-term quantum computing applications. However, the experimental resources such as the number of
Externí odkaz:
http://arxiv.org/abs/2404.15579
Publikováno v:
New Journal of Physics 26, 073028 (2024)
Multi-mode NOON states can quantum-enhance multiple-phase estimation in the absence of photon loss. However, a multi-mode NOON state is known to be vulnerable to photon loss, and its quantum-enhancement can be dissipated by lossy environment. In this
Externí odkaz:
http://arxiv.org/abs/2401.09734
Autor:
Bilash, Bohdan, Lim, Youngrong, Kwon, Hyukjoon, Kim, Yosep, Lim, Hyang-Tag, Song, Wooyeong, Kim, Yong-Su
Identifying Bell states without destroying it is frequently dealt with in nowadays quantum technologies such as quantum communication and quantum computing. In practice, quantum entangled states are often distributed among distant parties, and it mig
Externí odkaz:
http://arxiv.org/abs/2309.00869
Autor:
Jang, Hyeong-Soon, Lee, Donghwa, Heo, Hyungjun, Kim, Yong-Su, Lim, Hyang-Tag, Jeon, Seung-Woo, Moon, Sung, Kim, Sangin, Han, Sang-Wook, Jung, Hojoong
We demonstrate integrated photonic circuits for quantum devices using sputtered polycrystalline aluminum nitride (AlN) on insulator. The on-chip AlN waveguide directional couplers, which are one of the most important components in quantum photonics,
Externí odkaz:
http://arxiv.org/abs/2208.01377
Autor:
Hwang, Tae-yeon, Lee, Junghyun, Jeon, Seong-Woo, Kim, Yong-Su, Cho, Young-Wook, Lim, Hyang-Tag, Moon, Sung, Han, Sang-Wook, Choa, Yong-Ho, Jung, Hojoong
Publikováno v:
Nano Letters 2022
Engineering a strongly interacting uniform qubit cluster would be a major step towards realizing a scalable quantum system for quantum sensing, and a node-based qubit register. For a solid-state system that uses a defect as a qubit, various methods t
Externí odkaz:
http://arxiv.org/abs/2112.00943
Autor:
Lee, Donghwa, Lee, Jinil, Hong, Seongjin, Lim, Hyang-Tag, Cho, Young-Wook, Han, Sang-Wook, Shin, Hyundong, Rehman, Junaid ur, Kim, Yong-Su
We report the experimental resource-efficient implementation of the variational quantum eigensolver (VQE) using four-dimensional photonic quantum states of single-photons. The four-dimensional quantum states are implemented by utilizing polarization
Externí odkaz:
http://arxiv.org/abs/2109.14244
Autor:
Kim, Ilhwan, Lee, Donghwa, Hong, Seongjin, Cho, Young-Wook, Lee, Kwang Jo, Kim, Yong-Su, Lim, Hyang-Tag
Publikováno v:
Optics Express 29, 29527 (2021)
Linear optical multiports are widely used in photonic quantum information processing. Naturally, these devices are directionally-biased since photons always propagate from the input ports toward the output ports. Recently, the concept of directionall
Externí odkaz:
http://arxiv.org/abs/2106.13473