Zobrazeno 1 - 10
of 77
pro vyhledávání: '"Young-Sik RA"'
Publikováno v:
Physical Review Research, Vol 5, Iss 4, p 043057 (2023)
Coarse graining is a common imperfection of realistic quantum measurement, obstructing the direct observation of quantum features. Under highly coarse-grained measurement, we experimentally certify the continuous-variable nonclassicality of both Gaus
Externí odkaz:
https://doaj.org/article/078fa1b21f5a48caba4268dee968b064
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-13 (2021)
Abstract 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 parametric oscillator below the threshold. We investigate the quantum
Externí odkaz:
https://doaj.org/article/dfc732a50c604d369064b8519ae08c12
Publikováno v:
Physical Review X, Vol 7, Iss 3, p 031012 (2017)
Single-photon subtraction plays important roles in optical quantum information processing as it provides a non-Gaussian characteristic in continuous-variable quantum information. While the conventional way of implementing single-photon subtraction ba
Externí odkaz:
https://doaj.org/article/19019d78feef4368ba45fcd6e46c10d9
Publikováno v:
New Journal of Physics, Vol 17, Iss 2, p 023008 (2015)
Interferometric signals are degraded by decoherence, which encompasses dephasing, mixing and any distinguishing which-path information. These three paradigmatic processes are fundamentally different, but, for coherent, single-photon and $N00N$ -state
Externí odkaz:
https://doaj.org/article/536cec6cc75b494099ae97c405f3a575
Autor:
Young-Sik Ra, Malte C Tichy, Hyang-Tag Lim, Osung Kwon, Florian Mintert, Andreas Buchleitner, Yoon-Ho Kim
Publikováno v:
New Journal of Physics, Vol 16, Iss 11, p 118003 (2014)
A recent work (Björk and Shabbir 2014 New J. Phys. http://dx.doi.org/10.1088/1367-2630/16/1/013006 16 http://dx.doi.org/10.1088/1367-2630/16/1/013006 ) claims that nonmonotonic structures found in the many-particle quantum-to-classical transition (R
Externí odkaz:
https://doaj.org/article/9bda80332b0242b4864b917bc4d4f205
Autor:
Young-Sik RA, Yoon-Ho KIM
Publikováno v:
Physics and High Technology. 31:8-12
In 1935, Einstein, Podolsky, and Rosen (EPR) argued that (then new) quantum mechanics was incomplete. At the heart of EPR’s paradox was the strange non-local nature of an entangled state which allowed EPR to simultaneously assign local values for p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::16ee04a3a22debf8c6dd8573568cbb22
https://doi.org/10.3938/phit.31.047
https://doi.org/10.3938/phit.31.047
Publikováno v:
Scientific Reports
Scientific Reports, Vol 11, Iss 1, Pp 1-13 (2021)
Scientific Reports, Vol 11, Iss 1, Pp 1-13 (2021)
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 parametric oscillator below the threshold. We investigate the quantum propertie
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c7163babddcc1724a0a94d1b67733bdb
https://pubmed.ncbi.nlm.nih.gov/34556727
https://pubmed.ncbi.nlm.nih.gov/34556727
Autor:
Adrien Dufour, Clément Jacquard, Nicolas Treps, Mattia Walschaers, Thibault Michel, Claude Fabre, Young-Sik Ra
Publikováno v:
Nature Physics
Nature Physics, Nature Publishing Group, 2020, 16 (2), pp.144-147. ⟨10.1038/s41567-019-0726-y⟩
Nature Physics, Nature Publishing Group, 2020, 16 (2), pp.144-147. ⟨10.1038/s41567-019-0726-y⟩
Advanced quantum technologies require scalable and controllable quantum resources1,2. Gaussian states of multimode light, such as squeezed states and cluster states, are scalable quantum systems3–5, which can be generated on demand. However, non-Ga
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::afbb1504bfa8f350495225d16bd87e46
https://hal.archives-ouvertes.fr/hal-03037696/file/nongaussian.pdf
https://hal.archives-ouvertes.fr/hal-03037696/file/nongaussian.pdf
Autor:
Radim Filip, Claude Fabre, Olena Kovalenko, Vladyslav C. Usenko, Nicolas Treps, Yin Cai, Young-Sik Ra
Publikováno v:
Photonics Research. 9:2351
Quantum key distribution with continuous variables already uses advantageous high-speed single-mode homodyne detection with low electronic noise at room temperature. Together with continuous-variable information encoding to nonclassical states, the d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2faf68451f8c475ef6ed03e2368c79e3
https://doi.org/10.1364/prj.434979
https://doi.org/10.1364/prj.434979
Publikováno v:
Phys.Rev.A
Phys.Rev.A, 2019, 100 (2), pp.023828. ⟨10.1103/PhysRevA.100.023828⟩
Phys.Rev.A, 2019, 100 (2), pp.023828. ⟨10.1103/PhysRevA.100.023828⟩
Multimode photon-subtraction provides an experimentally feasible option to construct large non-Gaussian quantum states in continuous-variable quantum optics. The non-Gaussian features of the state can lead towards the more exotic aspects of quantum t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::746fccbaba8478eeb292ca06c4e5825f
http://arxiv.org/abs/1905.06755
http://arxiv.org/abs/1905.06755