Wavelet correlation noise analysis for qubit operation variable time series

Authors: Amanda E. Seedhouse, Nard Dumoulin Stuyck, Santiago Serrano, Will Gilbert, Jonathan Yue Huang, Fay E. Hudson, Kohei M. Itoh, Arne Laucht, Wee Han Lim, Chih Hwan Yang, Tuomo Tanttu, Andrew S. Dzurak, Andre Saraiva

Source: Scientific Reports, Vol 15, Iss 1, Pp 1-12 (2025)

Subject Terms: Medicine, Science

File Description: electronic resource

Relation: https://doaj.org/toc/2045-2322

Access URL: https://doaj.org/article/26f3fc607b2d4bbaae6a37fd185d1ed8

Entangling gates on degenerate spin qubits dressed by a global field

Authors: Ingvild Hansen, Amanda E. Seedhouse, Santiago Serrano, Andreas Nickl, MengKe Feng, Jonathan Y. Huang, Tuomo Tanttu, Nard Dumoulin Stuyck, Wee Han Lim, Fay E. Hudson, Kohei M. Itoh, Andre Saraiva, Arne Laucht, Andrew S. Dzurak, Chih Hwan Yang

Source: Nature Communications, Vol 15, Iss 1, Pp 1-7 (2024)

Subject Terms: Science

File Description: electronic resource

Relation: https://doaj.org/toc/2041-1723

Access URL: https://doaj.org/article/ca65c4902b314a3b96f9b85be2a1c672

Tomography of entangling two-qubit logic operations in exchange-coupled donor electron spin qubits

Authors: Holly G. Stemp, Serwan Asaad, Mark R. van Blankenstein, Arjen Vaartjes, Mark A. I. Johnson, Mateusz T. Mądzik, Amber J. A. Heskes, Hannes R. Firgau, Rocky Y. Su, Chih Hwan Yang, Arne Laucht, Corey I. Ostrove, Kenneth M. Rudinger, Kevin Young, Robin Blume-Kohout, Fay E. Hudson, Andrew S. Dzurak, Kohei M. Itoh, Alexander M. Jakob, Brett C. Johnson, David N. Jamieson, Andrea Morello

Source: Nature Communications, Vol 15, Iss 1, Pp 1-10 (2024)

Subject Terms: Science

File Description: electronic resource

Relation: https://doaj.org/toc/2041-1723

Access URL: https://doaj.org/article/7a3a048c70b64f26b94531b066970874

Coherence of a field gradient driven singlet-triplet qubit coupled to multielectron spin states in 28Si/SiGe

Authors: Younguk Song, Jonginn Yun, Jehyun Kim, Wonjin Jang, Hyeongyu Jang, Jaemin Park, Min-Kyun Cho, Hanseo Sohn, Noritaka Usami, Satoru Miyamoto, Kohei M. Itoh, Dohun Kim

Source: npj Quantum Information, Vol 10, Iss 1, Pp 1-8 (2024)

Subject Terms: Physics, QC1-999, Electronic computers. Computer science, QA75.5-76.95

File Description: electronic resource

Relation: https://doaj.org/toc/2056-6387

Access URL: https://doaj.org/article/16f6fa2b01354e1cbf02a018f4450259

Navigating the 16-dimensional Hilbert space of a high-spin donor qudit with electric and magnetic fields

Authors: Irene Fernández de Fuentes, Tim Botzem, Mark A. I. Johnson, Arjen Vaartjes, Serwan Asaad, Vincent Mourik, Fay E. Hudson, Kohei M. Itoh, Brett C. Johnson, Alexander M. Jakob, Jeffrey C. McCallum, David N. Jamieson, Andrew S. Dzurak, Andrea Morello

Source: Nature Communications, Vol 15, Iss 1, Pp 1-9 (2024)

Subject Terms: Science

File Description: electronic resource

Relation: https://doaj.org/toc/2041-1723

Access URL: https://doaj.org/article/f1f194b044f74af88404e3d4866cfcf7

Bell-state tomography in a silicon many-electron artificial molecule

Authors: Ross C. C. Leon, Chih Hwan Yang, Jason C. C. Hwang, Julien Camirand Lemyre, Tuomo Tanttu, Wei Huang, Jonathan Y. Huang, Fay E. Hudson, Kohei M. Itoh, Arne Laucht, Michel Pioro-Ladrière, Andre Saraiva, Andrew S. Dzurak

Source: Nature Communications, Vol 12, Iss 1, Pp 1-6 (2021)

Subject Terms: Science

File Description: electronic resource

Relation: https://doaj.org/toc/2041-1723

Access URL: https://doaj.org/article/bcc6602230604d6aba9fffb42a4b6ae3

Conditional quantum operation of two exchange-coupled single-donor spin qubits in a MOS-compatible silicon device

Authors: Mateusz T. Ma̧dzik, Arne Laucht, Fay E. Hudson, Alexander M. Jakob, Brett C. Johnson, David N. Jamieson, Kohei M. Itoh, Andrew S. Dzurak, Andrea Morello

Source: Nature Communications, Vol 12, Iss 1, Pp 1-8 (2021)

Subject Terms: Science

File Description: electronic resource

Relation: https://doaj.org/toc/2041-1723

Access URL: https://doaj.org/article/09575075197541cd9a808a86bf57b828

Optimization of optical spin readout of the nitrogen-vacancy center in diamond based on spin relaxation model

Authors: Yuki Nakamura, Hideyuki Watanabe, Hitoshi Sumiya, Kohei M. Itoh, Kento Sasaki, Junko Ishi-Hayase, Kensuke Kobayashi

Source: AIP Advances, Vol 12, Iss 5, Pp 055215-055215-6 (2022)

Subject Terms: Physics, QC1-999

File Description: electronic resource

Relation: https://doaj.org/toc/2158-3226

Access URL: https://doaj.org/article/0f0bd1e8f56b4adfaa2fb3e312467217

Beating the Thermal Limit of Qubit Initialization with a Bayesian Maxwell’s Demon

Authors: Mark A. I. Johnson, Mateusz T. Mądzik, Fay E. Hudson, Kohei M. Itoh, Alexander M. Jakob, David N. Jamieson, Andrew Dzurak, Andrea Morello

Source: Physical Review X, Vol 12, Iss 4, p 041008 (2022)

Subject Terms: Physics, QC1-999

File Description: electronic resource

Relation: https://doaj.org/toc/2160-3308

Access URL: https://doaj.org/article/5dfe98ecfadf48568737dd0167948a69

Construction and operation of a tabletop system for nanoscale magnetometry with single nitrogen-vacancy centers in diamond

Authors: Daiki Misonou, Kento Sasaki, Shuntaro Ishizu, Yasuaki Monnai, Kohei M. Itoh, Eisuke Abe

Source: AIP Advances, Vol 10, Iss 2, Pp 025206-025206-21 (2020)

Subject Terms: Physics, QC1-999

File Description: electronic resource

Relation: https://doaj.org/toc/2158-3226

Access URL: https://doaj.org/article/eb0847906eec49f89f49ad8ee5f66f59

Pauli Blockade in Silicon Quantum Dots with Spin-Orbit Control

Authors: Amanda E. Seedhouse, Tuomo Tanttu, Ross C.C. Leon, Ruichen Zhao, Kuan Yen Tan, Bas Hensen, Fay E. Hudson, Kohei M. Itoh, Jun Yoneda, Chih Hwan Yang, Andrea Morello, Arne Laucht, Susan N. Coppersmith, Andre Saraiva, Andrew S. Dzurak

Source: PRX Quantum, Vol 2, Iss 1, p 010303 (2021)

Subject Terms: Physics, QC1-999, Computer software, QA76.75-76.765

File Description: electronic resource

Relation: https://doaj.org/toc/2691-3399

Access URL: https://doaj.org/article/6bc329ba1b07426b815f4071c54620e3

Magnetic mesa structures fabricated by reactive ion etching with CO/NH3/Xe plasma chemistry for an all-silicon quantum computer.

Authors: Dong F Wang, Atsushi Takahashi, Yoshinori Matsumoto, Kohei M Itoh, Yoshihisa Yamamoto, Takahito Ono and Masayoshi Esashi

Source: Nanotechnology; 6/1/2005, Vol. 16 Issue 6, p990-994, 5p

Subject Terms: MAGNETIC materials, THIN films, MICROMACHINING, NANOTECHNOLOGY

Fabrication of Ge MOS with low interface trap density by ALD of Al2O3 on epitaxially grown Ge.

Authors: Ryotaro Matsuoka¹, r.matsuoka.z5@keio.jp, Eriko Shigesawa², Satoru Miyamoto¹, Kentarou Sawano², Kohei M Itoh¹

Source: Semiconductor Science & Technology; Jan2019, Vol. 34 Issue 1, p1-1, 1p

Study on Al2O3/Ge interface formed by ALD directly on epitaxial Ge.

Authors: Eriko Shigesawa¹, Ryotaro Matsuoka², Masashi Fukumoto¹, Ryosuke Sano¹, Kohei M Itoh², Hiroshi Nohira¹, Kentarou Sawano^1,3, sawano@tcu.ac.jp

Source: Semiconductor Science & Technology; Dec2018, Vol. 33 Issue 12, p1-1, 1p

Effect of carbon situating at end-of-range defects on silicon self-diffusion investigated using pre-amorphized isotope multilayers.

Authors: Taiga Isoda, Masashi Uematsu, Kohei M. Itoh

Source: Japanese Journal of Applied Physics; 2016, Vol. 55 Issue 3, p1-1, 1p

Suppression of segregation of the phosphorus δ-doping layer in germanium by incorporation of carbon.

Authors: Michihiro Yamada, Kentarou Sawano, Masashi Uematsu, Yasuo Shimizu, Koji Inoue, Yasuyoshi Nagai, Kohei M. Itoh

Source: Japanese Journal of Applied Physics; 2016, Vol. 55 Issue 3, p1-1, 1p

29Si nuclear spins as a resource for donor spin qubits in silicon.

Authors: Gary Wolfowicz, Pierre-André Mortemousque, Roland Guichard, Stephanie Simmons, Mike L W Thewalt, Kohei M Itoh, John J L Morton

Source: New Journal of Physics; Feb2016, Vol. 18 Issue 2, p1-1, 1p

Subject Terms: NUCLEAR spin, QUBITS, SILICON research

Simultaneous observation of the diffusion of self-atoms and co-implanted boron and carbon in silicon investigated by isotope heterostructures.

Authors: Masashi Uematsu, Kota Matsubara, Kohei M. Itoh

Source: Japanese Journal of Applied Physics; Jul2014, Vol. 53 Issue 7, p1-1, 1p

Damage-free top-down processes for fabricating two-dimensional arrays of 7 nm GaAs nanodiscs using bio-templates and neutral beam etching.

Authors: Yu Wang, Hsien Huang, Rikako Tsukamoto, Andre Mortemousque, Kohei M Itoh, Yuzo Ohno, Seiji Samukawa

Source: Nanotechnology; Sep2011, Vol. 22 Issue 36, p365301-365301, 1p

Subject Terms: DEFORMATIONS (Mechanics), MICROFABRICATION, GALLIUM arsenide, NANOSTRUCTURED materials, PLASMA etching, NEUTRAL beams, FERRITIN, CHEMICAL templates, LOW temperatures