Electron g-factor determined for quantum dot circuit fabricated from (110)-oriented GaAs quantum well
T. Nakagawa, S. Lamoureux, T. Fujita, J. Ritzmann, A. Ludwig, A. D. Wieck, A. Oiwa, M. Korkusinski, A. Sachrajda, D. G. Austing, L. Gaudreau
Journal of Applied Physics Vol. 131 No. 13 p. 134305-134305 2022/04/07 Research paper (scientific journal)
Publisher: AIP Publishing
Detection of photogenerated single electrons in a lateral quantum dot with a surface plasmon antenna
Rio Fukai, Yuji Sakai, Takafumi Fujita, Haruki Kiyama, Arne Ludwig, Andreas D. Wieck, Akira Oiwa
Applied Physics Express Vol. 14 No. 12 p. 125001-125001 2021/12/01 Research paper (scientific journal)
Publisher: IOP Publishing
Noise-robust classification of single-shot electron spin readouts using a deep neural network
Yuta Matsumoto, Takafumi Fujita, Arne Ludwig, Andreas D. Wieck, Kazunori Komatani, Akira Oiwa
npj Quantum Information Vol. 7 No. 1 2021/12 Research paper (scientific journal)
Publisher: Springer Science and Business Media LLC
Distinguishing persistent effects in an undoped GaAs/AlGaAs quantum well by top-gate-dependent illumination
Takafumi Fujita, Ryota Hayashi, Makoto Kohda, Julian Ritzmann, Arne Ludwig, Junsaku Nitta, Andreas D. Wieck, Akira Oiwa
Journal of Applied Physics Vol. 129 No. 23 p. 234301-234301 2021/06/21 Research paper (scientific journal)
Publisher: AIP Publishing
Characterization of a surface plasmon antenna fabricated on a gate-defined lateral quantum dot
Rio Fukai, Yuji Sakai, Tomohiro Nakagawa, Takafumi Fujita, Haruki Kiyama, Arne Ludwig, Andreas D. Wieck, Akira Oiwa
Japanese Journal of Applied Physics Vol. 60 No. SB p. SBBI01-SBBI01 2021/05/01 Research paper (scientific journal)
Publisher: IOP Publishing
Loading a quantum-dot based “Qubyte” register
C. Volk, A. M. J. Zwerver, U. Mukhopadhyay, P. T. Eendebak, C. J. van Diepen, J. P. Dehollain, T. Hensgens, T. Fujita, C. Reichl, W. Wegscheider, L. M. K. Vandersypen
npj Quantum Information Vol. 5 No. 1 2019/12 Research paper (scientific journal)
Publisher: Springer Science and Business Media LLC
Angular momentum transfer from photon polarization to an electron spin in a gate-defined quantum dot
Takafumi Fujita, Kazuhiro Morimoto, Haruki Kiyama, Giles Allison, Marcus Larsson, Arne Ludwig, Sascha R. Valentin, Andreas D. Wieck, Akira Oiwa, Seigo Tarucha
Nature Communications Vol. 10 No. 1 2019/12 Research paper (scientific journal)
Publisher: Springer Science and Business Media LLC
Irradiation Effects on Induced Electron Conductivity in an un-doped GaAs/AlGaAs Quantum Well Hall Bar
T. Fujita, R. Hayashi, M. Kohda, J. Ritzmann, A. Ludwig, J. Nitta, A. D. Wieck, A. Oiwa
2019 Compound Semiconductor Week, CSW 2019 - Proceedings 2019/05/01 Research paper (international conference proceedings)
Publisher: Institute of Electrical and Electronics Engineers Inc.
Photogeneration of a single electron from a single Zeeman-resolved light-hole exciton with preserved angular momentum
K. Kuroyama, M. Larsson, C. Y. Chang, J. Muramoto, K. Heya, T. Fujita, G. Allison, S. R. Valentin, A. Ludwig, A. D. Wieck, S. Matsuo, A. Oiwa, S. Tarucha
Physical Review B Vol. 99 No. 8 2019/02 Research paper (scientific journal)
Publisher: American Physical Society (APS)
Transport through quantum dots formed in a (110) GaAs quantum well
T. Nakagawa, R. Fukai, Y. Sakai, Y. Sakai, T. Fujita, H. Kiyama, T. Nakajima, J. Ritzmann, A. Ludwig, A. D. Wieck
2018/09
Automated tuning of inter-dot tunnel coupling in double quantum dots
C. J, van Diepen, P. T. Eendebak, B. T. Buijtendorp, U. Mukhopadhyay, T. Fujita, C. Reichl, L. M, K. Vandersypen
Applied Physics Letters 2018/07 Research paper (scientific journal)
Nonlinear and dot-dependent Zeeman splitting in GaAs/AlGaAs quantum dot arrays
V. P. Michal, T. Fujita, T. A. Baart, J. Danon, C. Reichl, W. Wegscheider, L. M, K. Vandersypen, Y. V. Nazarov
Physical Review B 2018/01 Research paper (scientific journal)
Single electron-photon pair creation from a single polarization-entangled photon pair
Kazuyuki Kuroyama, Marcus Larsson, Sadashige Matsuo, Takafumi Fujita, Sascha R. Valentin, Arne Ludwig, Andreas D. Wieck, Akira Oiwa, Seigo Tarucha
Scientific Reports Vol. 7 No. 1 2017/12/01 Research paper (scientific journal)
Publisher: Nature Publishing Group
Quantum simulation of a Fermi–Hubbard model using a semiconductor quantum dot array
T. Hensgens, T. Fujita, L. Janssen, Xiao Li, C. J. Van Diepen, C. Reichl, W. Wegscheider, S. Das Sarma, L. M. K. Vandersypen
Nature 2017/08 Research paper (scientific journal)
Coherent spin shuttling through quantum dots
T. Fujita, T.A. Baart, C. Reichl, W. Wegscheider, L.M.K. Vandersypen
2017/06
Coherent shuttle of electron-spin states
T. Fujita, T. A. Baart, C. Reichl, W. Wegscheider, L. M, K. Vandersypen
Nature Partner Journal Quantum Information 2017/06 Research paper (scientific journal)
Coherent shuttle of electron-spin states
Fujita Takafumi, Baart Timothy Alexander, Reichl Christian, Wegscheider Werner, Vandersypen Lieven, Mark Koenraad
NPJ QUANTUM INFORMATION Vol. 3 No. 22 2017/06 Research paper (scientific journal)
Coherent transfer of spins in a quantum dot array
T. Fujita, T.A. Baart, C. Reichl, W. Wegscheider, L.M.K. Vandersypen
2017/04
A single eletron-photon pair generation from a single polarization-entangled photon pair
Kazuyuki Kuroyama, Marcus Larsson, Sadashige Matsuo, Takafumi Fujita, Sascha R. Valentin, Arne Ludwig, Andreas D. Wieck, Akira Oiwa, Seigo Tarucha
2017/03 Research paper (scientific journal)
Conversion from single photon to single electron spin using electrically controllable quantum dots
Akira Oiwa, Takafumi Fujita, Haruki Kiyama, Giles Allison, Arne Ludwig, Andreas D. Wieck, Seigo Tarucha
Journal of the Physical Society of Japan Vol. 86 No. 1 2017/01/15 Research paper (scientific journal)
Publisher: Physical Society of Japan
Coherent shuttle of electron-spin states
T. Fujita, T. A. Baart, C. Reichl, W. Wegscheider, L. M, K. Vandersypen
2017/01 Research paper (scientific journal)
Coherent spin-exchange via a quantum mediator
Baart Timothy Alexander, Fujita Takafumi, Reichl Christian, Wegscheider Werner, Vandersypen Lieven, Mark Koenraad
NATURE NANOTECHNOLOGY Vol. 12 No. 1 p. 26-30 2017/01 Research paper (scientific journal)
Signatures of hyperfine, spin-orbit, and decoherence effects in a Pauli spin blockade
T. Fujita, P. Stano, G. Allison, K. Morimoto, Y. Sato, M. Larsson, J. H. Park, A. Ludwig, A. D. Wieck, A. Oiwa, S. Tarucha
Physical Review Letters Vol. 117 No. 20 2016/11/11 Research paper (scientific journal)
Publisher: American Physical Society
Demonstration of quantum state transfer using optical Pauli spin blockade in a lateral GaAs quantum dot
Larsson Marcus, Kuroyama Kazuyui, Matsuo Sadashige, Fujita Takafumi, Valentin Sascha R., Ludwig Arne, D.Wieck Andreas D., Oiwa Akira, Tarucha Seigo
Meeting Abstracts of the Physical Society of Japan Vol. 71 p. 1157-1157 2016
Publisher: The Physical Society of Japan
Single-Spin CCD
Timothy Alexander Baart, Mohammad Shafiei, Takafumi Fujita, Christian Reichl, Werner Wegscheider, Lieven Mark Koenraad Vandersypen
Nature Nanotechnology 11, 330-334 (2016) 2015/07 Research paper (scientific journal)
Single photoelectron spin detection and angular momentum transfer in a gate defined quantum dot
Takafumi Fujita, Kazuhiro Morimoto, Haruki Kiyama, Giles Allison, Marcus Larsson, Arne Ludwig, Sascha R. Valentin, Andreas D. Wieck, Akira Oiwa, Seigo Tarucha
2015/04 Research paper (scientific journal)
16aAE-3 Simultaneous detection of a photon and an electron towards quantum entanglement generation between a photon polarization and an electron spin
Kuroyama K., Larsson M., Fujita T., Matsuo S., Valentin S., Ludwig A., Wieck A., Oiwa A., Tarucha S.
Meeting Abstracts of the Physical Society of Japan Vol. 70 p. 1004-1004 2015
Publisher: The Physical Society of Japan (JPS)
23pBK-12 GaAs系横型量子ドットにおける単一光子検出の高効率化
黒山 和幸, 藤田 高史, Larsson Marcus, 松尾 貞茂, Valentin Sascha R., Ludwig Arne, Wieck Andreas, 大岩 顕, 樽茶 清悟
日本物理学会講演概要集 Vol. 70 p. 1379-1379 2015
Publisher: 一般社団法人日本物理学会
Tuning the electrically evaluated electron Landé<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>g</mml:mi></mml:math>factor in GaAs quantum dots and quantum wells of different well widths
G. Allison, T. Fujita, K. Morimoto, S. Teraoka, M. Larsson, H. Kiyama, A. Oiwa, S. Haffouz, D. G. Austing, A. Ludwig, A. D. Wieck, S. Tarucha
Physical Review B Vol. 90 No. 23 2014/12/11 Research paper (scientific journal)
Publisher: American Physical Society (APS)
Single photoelectron detection after selective excitation of electron heavy-hole and electron light-hole pairs in double quantum dots
K. Morimoto, T. Fujita, G. Allison, S. Teraoka, M. Larsson, H. Kiyama, S. Haffouz, D. G. Austing, A. Ludwig, A. D. Wieck, A. Oiwa, S. Tarucha
Physical Review B Vol. 90 No. 8 2014/08/12 Research paper (scientific journal)
Publisher: American Physical Society (APS)
Electrically tunable spin filtering for electron tunneling between spin-resolved quantum Hall edge states and a quantum dot
H. Kiyama, T. Fujita, S. Teraoka, A. Oiwa, S. Tarucha
Applied Physics Letters Vol. 104 No. 26 p. 263101-263101 2014/06/30 Research paper (scientific journal)
Publisher: AIP Publishing
Nondestructive Real-Time Measurement of Charge and Spin Dynamics of Photoelectrons in a Double Quantum Dot
T. Fujita, H. Kiyama, K. Morimoto, S. Teraoka, G. Allison, A. Ludwig, A. D. Wieck, A. Oiwa, S. Tarucha
Physical Review Letters Vol. 110 No. 26 2013/06/25 Research paper (scientific journal)
Publisher: American Physical Society (APS)
Single-Shot Detection of Electrons Generated by Individual Photons in a Tunable Lateral Quantum Dot
A. Pioda, E. Totoki, H. Kiyama, T. Fujita, G. Allison, T. Asayama, A. Oiwa, S. Tarucha
Physical Review Letters Vol. 106 No. 14 2011/04/08 Research paper (scientific journal)
Publisher: American Physical Society (APS)
Angular momentum transfer between a circularly polarized photon and an electron spin in double quantum dots
T. Asayama, T. Fujita, H. Kiyama, A. Oiwa, S. Tarucha
PHYSICS OF SEMICONDUCTORS: 30TH INTERNATIONAL CONFERENCE ON THE PHYSICS OF SEMICONDUCTORS Vol. 1399 2011 Research paper (international conference proceedings)
Development of a Numerical Algorithm for Identifying Single Photon Detection with a Quantum Dot
T. Fujita, T. Asayama, H. Kiyama, A. Oiwa, S. Tarucha
PHYSICS OF SEMICONDUCTORS: 30TH INTERNATIONAL CONFERENCE ON THE PHYSICS OF SEMICONDUCTORS Vol. 1399 2011 Research paper (international conference proceedings)
Optoelectronic spin transfer from single photons to single electron spins
Vol. 50 No. 11 p. 685-696 2015/11
Publisher: アグネ技術センター
8pAV-2 Real-time observation of spin blockade and analysis of the spin-flip tunneling time
Fujita T., Morimoto K., Sato Y., Teraoka S., Larsson Marcus, Alison Giles, Stano Peter, Ludwig Arne, Wieck Andreas D., Oiwa A., Tarucha S.
Meeting abstracts of the Physical Society of Japan Vol. 69 No. 2 p. 478-478 2014/08/22
Publisher: The Physical Society of Japan (JPS)
27aAU-7 Angular momentum transfer from a single photon polarization to a single electron spin in a lateral double quantum dot
Fujita T., Kiyama H., Morimoto K., Allison G., Teraoka S., Ludwig A., Wieck A., Oiwa A., Tarucha S.
Meeting abstracts of the Physical Society of Japan Vol. 69 No. 1 p. 688-688 2014/03/05
Publisher: The Physical Society of Japan (JPS)
28pXQ-9 Electrical control of the spin-dependent transport between a quantum dot and quantum Hall edge states by potential gradient tuning
Kiyama H., Fujita T., Teraoka S., Oiwa A., Tarucha s.
Meeting abstracts of the Physical Society of Japan Vol. 68 No. 1 p. 775-775 2013/03/26
Publisher: The Physical Society of Japan (JPS)
26aXQ-7 Single Photon Response in Lateral Quantum Dots Fabricated on a g-factor Engineered GaAs Quantum Well
Fujita T., Morimoto K., Teraoka S., Allison Giles, Ludwig Arne, Wieck Andreas, Oiwa A., Tarucha S.
Meeting abstracts of the Physical Society of Japan Vol. 68 No. 1 p. 743-743 2013/03/26
Publisher: The Physical Society of Japan (JPS)
GaAs系横型二重量子ドットにおける単一光子円偏光から単一電子スピンへの角運動量転写の実証
藤田 高史, 大岩 顕, 樽茶 清悟
Annual report = 低温センター年次報告 No. 5 p. 23-28,表紙 2013
Publisher: 東京大学低温センター
24aBJ-10 Transport through single and double quantum dots based on g-factor engineered GaAs/AlGaAs quantum wells
Morimoto K., Fujita T., Teraoka S., Allison Giles, Kiyama H., Oiwa A., Haffouz Sofiane, Austing David Guy, Tarucha S.
Meeting abstracts of the Physical Society of Japan Vol. 67 No. 1 p. 719-719 2012/03/05
Publisher: The Physical Society of Japan (JPS)
24aTR-3 Detection of Inter-dot Tunneling of a Single Photo-generated Electron in a Double Quantum Dot
Fujita T., Kiyama H., Teraoka S., Allison Giles, Oiwa A., Tarucha S.
Meeting abstracts of the Physical Society of Japan Vol. 66 No. 2 p. 704-704 2011/08/24
Publisher: The Physical Society of Japan (JPS)
27pVE-14 Single photon detection using a GaAs-based quantum dot with a quantum point contact in the presence of magnetic field
Oiwa A., Pioda A., Asayama T., Kiyama H., Fujita T., Allison Giles, Tarucha S.
Meeting abstracts of the Physical Society of Japan Vol. 64 No. 1 p. 688-688 2009/03/03
Publisher: The Physical Society of Japan (JPS)
単一電子スピンCCD
藤田 高史
大阪大学低温センターだより Vol. 169 p. 2-6 2019/01
