Publications

A Ku band pulsed electron paramagnetic resonance spectrometer using an arbitrary waveform generator for quantum control experiments at millikelvin temperatures. ,

Y.S. Yap, Y. Tabuchi, M. Negoro, A. Kagawa, M. Kitagawa,

Rev Sci Instrum.86, 063110 (2015)
Measurement-Free Topological Protection Using Dissipative Feedback ,

K. Fujii, M. Negoro, N. Imoto, M. Kitagawa,

Phys. Rev. X 4, 041039(2014)
Room temperature hyperpolarization of nuclear spins in bulk ,

K. Tateishi, M. Negoro, S. Nishida, A. Kagawa, Y. Morita, M. Kitagawa,

Proceedings of the National Academy of Sciences, Vol.111 no.21, 7527-7530 (2013)
Dynamic Nuclear Polarization with Photoexcited Triplet Electrons in a Glassy Matrix ,

K. Tateishi, M. Negoro, A. Kagawa, M. Kitagawa,

Angewandte Chemie Volume 125, Issue 50,Pages 13549–13552(2013)
Hyperpolarization of Thin Films with Dynamic Nuclear Polarization Using Photoexcited Triplet Electrons ,

K. Tateishi, M. Negoro, A. Kagawa, T. Uesaka, M. Kitagawa,

J. Phys. Soc. Jpn. 82,084005(2013)
Strongly driven electron spins using a Ku band stripline electron paramagnetic resonance resonator ,

Y. S. Yap, H. Yamamoto, Y. Tabuchi, M. Negoro, A. Kagawa, M. Kitagawa,

J. Magn. Reson. 232, 62-67(2013)
Pulsed electron spin nutation spectroscopy of weakly exchange-coupled biradicals: a general theoretical approach and determination of the spin dipolar interaction ,

K. Ayabe, K. Sato, S. Nishida, T. Ise, S. Nakazawa, K. Sugisaki, Y. Morita, K. Toyota, D. Shiomi, M. Kitagawa, T. Takui,

Phys. Chem. Chem. Phys., 2012
Tandem Arrays of TEMPO and Nitronyl Nitroxide Radicals with Designed Arrangements on DNA ,

H. Atsumi, K. Maekawa, S. Nakazawa, D. Shiomi, K. Sato, M. Kitagawa, T. Takui, K. Nakatani,

Chem. Eur. J. 18, 178-183 (2012)
Ab initio and DFT studies of the spin-orbit and spin-spin contributions to the zero-field splitting tensors of triplet nitrenes with aryl scaffolds ,

K. Sugisaki, K. Toyota, K. Sato, D. Shiomi, M. Kitagawa, T. Takui,

Phys. Chem. Chem. Phys. 13, 6970-6980 (2011)
Scalable Spin Amplification with a Gain over a Hundred ,

M. Negoro, K. Tateishi, A. Kagawa, M. Kitagawa,

Phys. Rev. Lett. 107, 050503 (2011)
ESR and ¹H-,¹⁹F-ENDOR/TRIPLE Study of Fluorinated Diphenylnitroxides as Synthetic Bus Spin-Qubit Radicals with Client Qubits in Solution ,

T. Yoshino, S. Nishida, K. Sato, S. Nakazawa, R. D. Rahimi, K. Toyota, D. Shiomi, Y. Morita, M. Kitagawa, T. Takui,

J. Phys. Chem. Lett., 449-453 (2011)
Spin-orbit contributions in high-spin nitrenes/carbenes: A hybrid CASSCF/MRMP2 study of zero-field splitting tensors ,

K. Sugisaki, K. Toyota, K. Sato, D. Shiomi, M. Kitagawa, T. Takui,

ChemPhysChem. 11, 3146-3151 (2010)
²H-decoupling-accelerated ¹H spin diffusion in dynamic nuclear polarization with photoexcited triplet electrons ,

M. Negoro, K. Nakayama, K. Tateishi, A. Kagawa, K. Takeda, M. Kitagawa,

J. Chem. Phys. 133, 154504 (2010)
Total compensation of pulse transients inside a resonator ,

Y. Tabuchi, M. Negoro, K. Takeda, M. Kitagawa,

J. Magn. Reson. 204, 327-332 (2010)
Noncovalent assembly of TEMPO radicals pair-wise embedded on a DNA duplex ,

H. Atsumi, K. Maekawa, S. Nakazawa, D. S. Shiomi, K. Sato, M. Kitagawa, T. Takui, K. Nakatani,

Chem. Lett. 39, 556-557 (2010)
Triple-stranded metallo-helicates addressable as LLoyds electron spin qubits ,

Y. Morita, Y. Yakiyama, S. Nakazawa, T. Murata, T. Ise, D. Hashizume, D. Shiomi, K. Sato, M. Kitagawa, K. Nakasuji, T. Takui,

J. Am. Chem. Soc. 132, 6944-6946 (2010)
Programmed assembly of organic radicals on DNA ,

K. Maekawa, S. Nakazawa, H. Atsumi, D. Shiomi, K. Sato, M. Kitagawa, T. Takui, K. Nakatani,

Chem. Commun. 46, 1247-1249 (2010)
Magnetic-field cycling instrumentation for dynamic nuclear polarization-nuclear magnetic resonance using photoexcited triplets ,

A. Kagawa, M. Negoro, K. Takeda, M. Kitagawa,

Rev. Sci. Instrum. 80, 044705 (2009)
Ab initio calculations of spin-orbit contribution to the zero-field splitting tensors of nπ^* excited states by the CASSCF method with MRMP2 energy correction ,

K. Sugisaki, K. Toyota, K. Sato, D. Shiomi, M. Kitagawa, T. Takui,

Chem. Phys. Lett. 477, 369-373 (2009)
Molecular electron-spin quantum computers and quantum information processing: Pulse-based electron magnetic resonance spin technology applied to matter spin-qubits ,

K. Sato, S. Nakazawa, R. Rahimi, T. Ise, S. Nishida, T. Yoshino, N. Mori, K. Toyota, D. Shiomi, Y. Yakiyama, Y. Morita, M. Kitagawa, K. Nakasuji, M. Nakahara, H. Hara, P. Carl, P. Hofer, T. Takui,

J. Mater. Chem, 3739-3754 (2009)
Active compensation of rf-pulse transients ,

K. Takeda, Y. Tabuchi, M. Negoro, M. Kitagawa,

J. Magn. Reson. 197, 242-244 (2009)
Optimization of ¹H spin density for dynamic nuclear polarization using photo-excited triplet electron spins ,

A. Kagawa, Y. Murokawa, K. Takeda, M. Kitagawa,

J. Magn. Reson. 197, 9-13 (2009)
Simultaneous adiabatic spin-locking cross polarization in solid-state NMR of paramagnetic complexes ,

W. K. Peng, A. Samoson, M. Kitagawa,

Chem. Phys. Lett. 460, 531-535 (2008)
Implementation of molecular spin quantum computing by pulsed ENDOR technique: Direct observation of quantum entanglement and spinor ,

K. Sato, R. Rahimi, N. Mori, S. Nishida, K. Toyota, D. Shiomi, Y. Morita, A. Ueda, S. Suzuki, K. Furukawa, T. Nakamura, M. Kitagawa, K. Nakasuji, M. Nakahara, H. Hara, P. Carl, P. Hofer, T. Takui,

Physica E40, 363-366 (2007)
Enhancement of efficiency in photo-excitation to the triplet state by laser-pulse reshaping ,

K. Takeda, T. Yamamura, A. Kagawa, M. Kitagawa,

J. Magn. Reson. 174, 310-313 (2005)
Under construction..

Oral/Posters

invited

Spin amplification with hyperpolarized nuclei,

M. Negoro,

The 11th US-Japan Joint Seminar on Quantum Electronics and Laser Spectroscopy "Ultimate Quantum Systems of Light and Matter- Control and Applications", Nara Prefectural New Public Hall, Nara, 2013.4.11
(Japanese)光励起三重項電子スピンを用いた動的核偏極,

M. Negoro, K. Tateishi, A. Kagawa, K. Takeda, M. Kitagawa,

第11回日本蛋白質科学会年会 2011.6.8
Hyper polarized and hyper precision magnetic resonance towards molecular spin quantum computation,

M. Kitagawa,

CREST 2010 International Symposium on Physics of Quantum Technology, Tokyo, Japan, (2010) 2010.4.06

oral

(Japanese)スピン増幅を用いた量子非破壊測定,

M. Negoro, K. Tateishi, A. Kagawa, S. Nishida, Y. Morita, M. Kitagawa,

第28回量子情報技術研究会(QIT28), 北海道大学札幌キャンパス, 北海道 2013.5.27
Room-temperature hyperpolarization using photo-excited triplet electrons,

M. Negoro,

4th international DNP Symposium, Copenhagen, Denmark, 2013.8.29
(Japanese)非測定型トポロジカル量子誤り訂正：実装,

M. Negoro, K. Fujii, N. Imoto, M. Kitagawa,

日本物理学会 2013年秋季大会,徳島大学, 徳島, 2013.9.25
(Japanese)極低温下(＜１K)での任意波形パルスESR実験,

M. Negoro, Y. S. Yap, Y. Tabuchi, T. Kato, Y. Hashimoto, A. Kagawa, M. Kitagawa,

第52回電子スピンサイエンス学会年会大宮ソニックシティ,埼玉 2013.10.25 /div>
(Japanese)光励起三重項電子スピンを用いた動的核偏極による室温下での1Hスピン偏極率34％の達成,

K. Tateishi, M. Negoro, S. Nishida, A. Kagawa, Y. Morita, M. Kitagawa,

第52回電子スピンサイエンス学会年会大宮ソニックシティ,埼玉 2013.10.25 /div>
(Japanese)動的デカップリングパルスの自動生成法,

Y. Tabuchi, M. Kitagawa,

第26回量子情報技術研究会, 福井大学, 福井 2012.5.22
(Japanese)光励起三重項電子スピンを用いたDNPによる室温下での偏極率34％の達成,

K. Tateishi, M. Negoro, S. Nishida, A. Kagawa, Y. Morita, M. Kitagawa,

第52回NMR討論会, 石川県立音楽堂, 石川 2013.11.14
(Japanese)動的デカップリングパルスの自動生成法,

Y. Tabuchi, M. Kitagawa,

第26回量子情報技術研究会, 福井大学, 福井 2012.5.22
(Japanese)重水素デカップリングによるＤＮＰ時のプロトンスピン拡散の促進,

M. Negoro,

第４９回固体NMR・材料フォーラム 2011.5.17
(Japanese)ゲイン100以上のスピン増幅の実験的実現,

M. Negoro, K. Tateishi, A. Kagawa, M. Kitagawa,

第66回日本物理学会年次大会 2011.3.25(中止)
(Japanese)スピン増幅の理論,

M. Kitagawa, M. Negoro,

第66回日本物理学会年次大会 2011.3.25(中止)
(Japanese)高偏極核スピン系におけるゲイン100以上のスピンアンプの実験的実現,

M. Negoro, K. Tateishi, A. Kagawa, M. Kitagawa,

第23回量子情報技術研究会 (QIT23) 2010.11.16
(Japanese)光励起三重項電子を用いた動的核偏極による分子核スピン量子計算機の初期化,

M. Negoro, K. Tateishi, A. Kagawa, M. Kitagawa,

第22回量子情報技術研究会 (QIT22) 2010.5.10

poster

(Japanese)平均ハミルトニアン理論と最適制御理論に基づく選択平均パルスの数値的設計法,

R. Suyama, Y. Tabuchi, M. Negoro, M. Kitagawa,

第52回NMR討論会, 石川県立音楽堂, 石川 2013.11
(Japanese)ソフトウェア定義磁気共鳴分光計の開発,

Y. Saeki, Y. Ichimura, M. Negoro, M. Kitagawa,

第52回NMR討論会, 石川県立音楽堂, 石川 2013.11
(Japanese)核スピン増幅を用いた量子非破壊測定,

M. Negoro, K. Tateishi, S. Nishida, A. Kagawa, Y. Morita, M. Kitagawa,

第52回NMR討論会, 石川県立音楽堂, 石川 2013.11
(Japanese)平均場近似を用いた核磁気相転移の解析,

A. Kagawa, T. Kitano, M. Negoro, I. Maruyama, M. Kitagawa,

第52回NMR討論会, 石川県立音楽堂, 石川 2013.11
(Japanese)ESR量子コンピュータ実現に向けた装置開発及びコンポジットパルスによるキュービットの正確な制御,

T. Kato, Y. S. Yap, Y. Hashimoto, Y. Tabuchi, M. Negoro, A. Kagawa, M. Kitagawa,

第52回電子スピンサイエンス学会年会,大宮ソニックシティ, 埼玉 2013.10
(Japanese)室温下での30%を超える固体陽子スピン偏極,

K. Tateishi, M. Negoro, S. Nishida, A. Kagawa, Y. Morita, M. Kitagawa,

日本物理学会　2013年秋季大会,徳島大学, 徳島 2013.9
DNP with photoexcited triplet electrons in glassy matrix,

K. Tateishi, M. Negoro, A. Kagawa, M. Kitagawa,

4th international DNP Symposium,Copenhagen,Denmark 2013.8
(Japanese)ESR量子コンピュータ実現に向けた装置開発,

Y. Hashimoto, Y. S. Yap, Y. Tabuchi, T. Kato, H. Yamamoto, M. Negoro, A. Kagawa, M. Kitagawa,

第28回量子情報技術研究会(QIT28), 北海道大学　札幌キャンパス, 北海道 2013.5

(Japanese)光励起三重項電子を用いた動的核偏極によって高偏極化された核スピン系における量子情報処理実験

S. Hashizaki, K. Tateishi, M. Negoro, S. Nishida, A. Kagawa, Y. Morita, M. Kitagawa,

第28回量子情報技術研究会(QIT28), 北海道大学　札幌キャンパス, 北海道 2013.5

(Japanese)平均場近似によるp-ターフェニル結晶の核磁気相転移の解析,

T. Kitano, A. Kagawa, M. Negoro, I. Maruyama, M. Kitagawa,

第28回量子情報技術研究会(QIT28), 北海道大学　札幌キャンパス, 北海道 2013.5
Strongly Driven Spins using a Ku Band Stripline EPR Resonator,

Y. S. Yap,

The 11th US-Japan Joint Seminar on Quantum Electronics and Laser Spectroscopy "Ultimate Quantum Systems of Light and Matter- Control and Applications", Nara Prefectural New Public Hall, Nara, 2013.4
(Japanese)最適化パルスシーケンスによる電子スピン状態の制御,

Y. Tabuchi, M. Kitagawa,

第50回電子スピンサイエンス学会年会, 仙台国際センター, 宮城 2011.11
Numerical Optimization method of quantum gates incorporating dynamical decoupling,

Y. Tabuchi, M. Kitagawa,

SPINTECH6, Kunibiki Messa, Matsue, Shimane, Japan (2011) 2011.8
²H-decoupling-driven ¹H spin diffusion in dynamic nuclear polarization with photo-excited triplet electrons,

M. Negoro, K. Nakayama, K. Tateishi, A. Kagawa, K. Takeda, M. Kitagawa,

52nd Experimental Nuclear Magnetic Resonance Conference 2011.4.10
(Japanese)重水素デカップリングによるtriplet-DNP下におけるプロトンスピン拡散の促進,

M. Negoro, K. Nakayama, K. Tateishi, A. Kagawa, K. Takeda, M. Kitagawa,

第49回NMR討論会 2010.11.15
Modified circuit against error propagation in conventional ancilla preparation for logical Toffoli gate of Steane code,

D. Aratsu,

10th International Conference on Quantum Communication, Measurement and Computation, The University of Queensland, Brisbane, Australia, P1-22, p. 112 (2010) 2010.07.19
Resonator pulse compensation for precise qubit manipulation,

Y. Tabuchi, M. Negoro, K. Takeda, M. Kitagawa,

International Conference on Core Research and Engineering Science of Advanced Materials, Osaka, Japan, PSII-67 (2010) 2010.6.2
Solid State Nuclear Spin Qubit System Hyperpolarized with Dynamic Nuclear Polarization using Photoexcited Triplet Electrons,

K. Tateishi, M. Negoro, A. Kagawa, K. Takeda, M. Kitagawa,

International Conference on Core Reasearch and Engineering Science of Advanced Materials, Osaka, Japan (2010) 2010.06.01
High Proton Polarization at Room Temperature in p-terphenyl Crystal with Dynamic Nuclear Polarization using Photoexcited Triplet Electrons,

M. Negoro, K. Tateishi, A. Kagawa, K. Takeda, M. Kitagawa,

International Conference on Core Reasearch and Engineering Science of Advanced Materials, Osaka, Japan (2010) 2010.06.01
Fault-tolerant quantum computation without measurement,

D. Aratsu,

International Conference on Core Reasearch and Engineering Science of Advanced Materials, Osaka, Japan, PSI-12, p. 236 (2010) 2010.06.01
Total Compensation of Pulse Transients Inside a Resonator,

Y. Tabuchi, M. Negoro, K. Takeda, M. Kitagawa,

51st Experimental Nuclear Magnetic Resonance Conference, Daytona Beach, USA (2010) 2010.4.20
Solid State Nuclear Spin Qubit System with Easily-Accessible Bath Cooled with Dynamic Nuclear Polarization using Photoexcited Triplet Electrons,

K. Tateishi, M. Negoro, A. Kagawa, K. Takeda, M. Kitagawa,

51st Experimental Nuclear Magnetic Resonance Conference, Daytona Beach, USA (2010) 2010.04.20
High Proton Polarization at Room Temperature in p-terphenyl Crystal with Dynamic Nuclear Polarization High Proton Polarization at Room Temperature in p-terphenyl Crystal with Dynamic Nuclear using Photoexcited Triplet Electrons,

M. Negoro, K. Tateishi, A. Kagawa, K. Takeda, M. Kitagawa,

51st Experimental Nuclear Magnetic Resonance Conference, 93, Daytona Beach, USA (2010) 2010.04.20
Toward optical detection of organic molecules for spin quantum computer,

A. Kagawa, M. negoro, K. Tateishi, M. kitagawa,

CREST 2010 International Symposium on Physics of Quantum Technology, Tokyo, Japan, 8TH-30, p. 146 (2010) 2010.04.08
Towards scalable ESR quantum computation utilizing sensitive Ku-Band probe and magnetic field gradient,

Y. S. Yap, T. Kishida, I. Yamashina, H. Usui, M. Kitagawa,

CREST 2010 International Symposium on Physics of Quantum Technology, Tokyo, Japan, 8TH-23, p. 146 (2010) 2010.4.08
Resonator pulse compensation for precise qubit manipulation,

Y. Tabuchi, M. Negoro, K. Takeda, M. Kitagawa,

CREST 2010 International Symposium on Physics of Quantum Technology, Tokyo, Japan, 8TH-24, p. 135 (2010) 2010.4.08
Fault-tolerant quantum computation without measurement,

D. Aratsu,

CREST 2010 International Symposium on Physics of Quantum Technology, Tokyo, Japan, 8TH-34, p. 146 (2010) 2010.04.08
Solid State Nuclear Spin Qubit System Hyperpolarized with Dynamic Nuclear Polarization using Photoexcited Triplet Electrons,

K. Tateishi, M. Negoro, A. Kagawa, K. Takeda, M. Kitagawa,

CREST 2010 International Symposium on Physics of Quantum Technology, Tokyo, Japan (2010) 2010.04.08
High proton polarization at room temperature in p-terphenyl crystal with dynamic nuclear polarization using photoexcited triplet electrons,

M. Negoro, K. Tateishi, A. Kagawa, K. Takeda, M. Kitagawa,

CREST 2010 International Symposium on Physics of Quantum Technology, Tokyo, Japan (2010) 2010.04.08
(Japanese)共振器応答に基づくパルス過渡現象の全補償,

Y. Tabuchi, M. Negoro, K. Takeda, M. Kitagawa,

第48回NMR討論会, 九州大学, 福岡 2009.11

大阪大学北川研究室

--- 量子情報デバイス研究室 ---

Publications

Oral/Posters

invited

oral

poster