| Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
CS
(Workshop) |
2023-11-09
14:40 |
Shizuoka |
Plaza Verde |
[Invited Talk]
Shigeki Takeuchi (Kyoto Univ.) |
[more] |
|
QIT
(2nd) |
2023-05-29
10:55 |
Kyoto |
Katsura Campus, Kyoto University |
[Tutorial Lecture]
Nobel Prize in Physics has been awarded for Quantum Entanglement
-- Scientists who challenged the question on “physical reality” --
Shigeki Takeuchi (Kyoto Univ.) |
[more] |
|
QIT
(2nd) |
2023-05-29
13:50 |
Kyoto |
Katsura Campus, Kyoto University |
Experimental demonstration of multiphoton quantum correlation beyond the linear optics limit
Geobae Park, Ryo Okamoto (Kyoto Univ.), Holger F. Hofmann (Hiroshima Univ.), Shigeki Takeuchi (Kyoto Univ.) |
Single photon sources and linear optics networks play an important role in photonic quantum technologies. The states gen... [more] |
|
QIT
(2nd) |
2023-05-29
15:45 |
Kyoto |
Katsura Campus, Kyoto University |
Quantum infrared spectroscopy in the fingerprint region
Yu Mukai, Ryo Okamoto, Shigeki Takeuchi (Kyoto Univ.) |
Quantum infrared spectroscopy (QIRS) is one of the photonic quantum sensing techniques using frequency entangled photon ... [more] |
|
QIT
(2nd) |
2023-05-29
16:30 |
Kyoto |
Katsura Campus, Kyoto University |
[Poster Presentation]
Effect of pump laser linewidth on nonlinear quantum interferometric fringes
Jasleen Kaur, Yu Mukai, Ryo Okamoto, Shigeki Takeuchi (Kyoto Univ.) |
Nonlinear quantum interferometers are a remarkable tool for extracting the properties of the sample without detecting th... [more] |
|
QIT
(2nd) |
2023-05-29
16:30 |
Kyoto |
Katsura Campus, Kyoto University |
[Poster Presentation]
Single photon emission from single defect center in hexagonal boron nitride by Anti-Stokes excitation
Yudai Okashiro, Konosuke Shimazaki, Kazuki Suzuki (Kyoto Univ), Hideaki Tkashima (Chitose Univ), Igor Ahanorovich (UTS), Shigeki Takeuchi (Kyoto Univ) |
Recently, hexagonal boron nitride (hBN) with single defect centers has attracted much attention as a single photon sourc... [more] |
|
QIT
(2nd) |
2023-05-29
16:30 |
Kyoto |
Katsura Campus, Kyoto University |
[Poster Presentation]
Cryogenic Temperature Evaluation of Nanodiamonds Containing Silicon-Vacancy Centers by ion implantation
Konosuke Shimazaki, Kazuki Suzuki, Yudai Okashiro (Kyoto Univ.), Hideaki Takashima (Kyoto Univ./Chitose Institute of Science and Technology), Hiroshi Abe, Takeshi Ohshima (QST), Shigeki Takeuchi (Kyoto Univ.) |
[more] |
|
QIT
(2nd) |
2023-05-29
16:30 |
Kyoto |
Katsura Campus, Kyoto University |
[Poster Presentation]
Toward enhanced two-photon absorption using super thermal light
Ryuichi Miyata (Kyoto Univ.), Mutsuo Nuriya (Keio Univ.), Yujiro Eto, Shigeki Takeuchi (Kyoto Univ.) |
[more] |
|
QIT
(2nd) |
2022-12-08
14:00 |
Kanagawa |
Keio Univ.
(Primary: On-site, Secondary: Online) |
[Poster Presentation]
Optimizing the coupling efficiency of collinear spontaneous parametric down-conversion photon pairs into single-mode fibers
Geobae Park, Nicolas Schwaller, Ryo Okamoto, Shigeki Takeuchi (Kyoto Univ) |
Spontaneous parametric down conversion (SPDC) plays important role in photonic quantum information science. In particula... [more] |
|
QIT
(2nd) |
2022-05-30
13:30 |
Online |
Online |
[Poster Presentation]
Demonstration of ultra-broadband frequency entangled photon-pairs generated in an on-chip ring resonator
Yushi Hamayama, Kenta Sugiura, Dan Nakamura, Ryo Okamoto (Kyoto Univ.), Brent E. Little (CAS), Sai Tak CHU (CityU), Shigeki Takeuchi (Kyoto Univ.) |
Frequency entangled photon-pairs are widely used in quantum technologies such as quantum metrology
and quantum informat... [more] |
|
QIT
(2nd) |
2022-05-30
13:30 |
Online |
Online |
[Poster Presentation]
Creation of single silicon-vacancy centers in nanodiamonds by ion implantation
Kazuki Suzuki, Konosuke Shimazaki, Hideaki Takashima (Kyoto Univ.), Hiroshi Abe, Ohshima Takeshi (QST), Shigeki Takeuchi (Kyoto Univ.) |
Color centers in nanodiamonds are expected to have applications in quantum technology. Among them, silicon vacancy cente... [more] |
|
QIT
(2nd) |
2022-05-30
13:30 |
Online |
Online |
[Poster Presentation]
Toward Realization of a Two-dimensional Quantum Walk with Helical Boundary Conditions I
-- Generation and Evaluation of Petal-shaped Beams --
Yutaro Okamoto (Kyoto Univ.), Hideaki Obuse (Hokkaido Univ.), Shigeki Takeuchi, Ryo Okamoto (Kyoto Univ.) |
Quantum walk is a quantum version of random walk and is expected to have applications in quantum simulation and quantum ... [more] |
|
QIT
(2nd) |
2022-05-30
13:30 |
Online |
Online |
[Poster Presentation]
Realization of Compression of Temporal Correlation Width of Frequency Entangled Photon Pairs Using Evolutionary Strategy Algorithm
Ryoya Saito, Itsumu Fujita, Shunsuke Sasaki, Naofumi Abe (Kyoto Univ), Mamoru Hisamitsu, Katsuhiko Tokuda (Shimadzu Corporation), Ryo Okamoto, Shigeki Takeuchi (Kyoto Univ) |
Since broadband frequency entangled photon pairs can realize ultra-short temporal correlation width, those are
expected... [more] |
|
QIT
(2nd) |
2021-05-24
13:30 |
Online |
Online |
[Poster Presentation]
Fabrication of silicon-vacancy centers in nanodiamonds
Konosuke Shimazaki, Hiroki Kawaguchi, Hideaki Takashima (Kyoto Univ.), Takuya F. Segawa (ETH Zurich), Frederick So, Daiki Terada (Kyoto Univ.), Shinobu Onoda, Takeshi Ohshima (QST), Masahiro Shirakawa, Shigeki Takeuchi (Kyoto Univ.) |
[more] |
|
QIT
(2nd) |
2019-05-20
13:20 |
Fukuoka |
Kyushu University, Chikushi Campus |
[Poster Presentation]
Experimental demonstration of adaptive quantum state estimation for dynamic quantum states
Saki Nohara, Ryo Okamoto (Kyoto Univ.), Akio Fujiwara (Osaka Univ.), Shigeki Takeuchi (Kyoto Univ.) |
For the development of quantum information technology, it is essential to provide a method to efficiently estimate the q... [more] |
|
QIT
(2nd) |
2019-05-20
13:20 |
Fukuoka |
Kyushu University, Chikushi Campus |
[Poster Presentation]
Estimation of the quality factor of an on-chip ring resonator using coincidence measurement
Kenta Sugiura, Ryo Okamoto (Kyoto Univ.), Sai T. Chu (City Univ. of Hong Kong), Brent E. Little (CAS), Shigeki Takeuchi (Kyoto Univ.) |
Recently, photon-pair sources using optical waveguides are considered promising. Especially, high-Q ring resonators have... [more] |
|
QIT
(2nd) |
2019-05-20
13:20 |
Fukuoka |
Kyushu University, Chikushi Campus |
[Poster Presentation]
Study on the spatial separation of entangled photon pairs in the same spatial mode
Yuki Kamei, Bo Cao, Takayuki Kiyohara, Ryo Okamoto, Shigeki Takeuchi (Kyoto Univ.) |
[more] |
|
QIT
(2nd) |
2019-05-20
13:20 |
Fukuoka |
Kyushu University, Chikushi Campus |
[Poster Presentation]
Generation of visible-infrared entangled photon pairs using a LiNbO3 crystal
Masaya Arahata, Bo Cao, Ryo Okamoto, Shigeki Takeuchi (Kyoto Univ.) |
[more] |
|
QIT
(2nd) |
2018-11-26
13:30 |
Tokyo |
The University of Tokyo |
[Poster Presentation]
Generation of non-Fock states using entangled two multi-photon multi-mode systems
Issei Matsumoto, Takayuki Kiyohara, Ryo Okamoto (Kyoto Univ.), Holger F. Hofmann (Hiroshima Univ.), Shigeki Takeuchi (Kyoto Univ.) |
Non-Fock state cannot be generated by using multiple single-photons and an unitary transform circuit composed of linear ... [more] |
|
QIT
(2nd) |
2018-06-04
13:20 |
Hiroshima |
ICCH Ran |
[Poster Presentation]
Study on the temporal correlation measurement of entangled photon pairs
Masato Yoshikawa, Tatsuki Deguchi, Ryo Okamoto (Kyoto Univ.), Hwan Hong Lim, Sunao Kurimura (NIMS), Shigeki Takeuchi (Kyoto Univ.) |
[more] |
|