Nucleon distribution amplitudes and proton decay matrix elements on the lattice (2008)
Braun, V. M., Göckeler, M., Horsley, R., Kaltenbrunner, T., Nakamura, Y., Pleiter, D., ...
Baryon distribution amplitudes (DAs) are crucial for the theory of hard exclusive reactions. We present a calculation of the first few moments of the leading-twist nucleon DA within lattice QCD. In...
Clover improvement for stout-smeared 2+1 flavour SLiNC fermions: non-perturbative results (2008)
Cundy, N., Göckeler, M., Horsley, R., Kaltenbrunner, T., Kennedy, A. D., Nakamura, Y., ...
We discuss an action in which the fermion matrix has single level stout smearing for the hopping terms together with unsmeared links for the clover term. With the (tree level) Symanzik improved gluon...
Extracting the rho resonance from lattice QCD simulations at small quark masses (2008)
Göckeler, M., Horsley, R., Nakamura, Y., Pleiter, D., Rakow, P. E. L., Schierholz, G., ...
Using established relations between the scattering matrix in infinite volume and the two-particle spectrum in a periodic box, we compute the mass and width of the rho meson from simulations of N_f=2...
Non-perturbative renormalization of three-quark operators (2008)
Göckeler, M., Horsley, R., Kaltenbrunner, T., Nakamura, Y., Pleiter, D., Rakow, P. E. L., ...
High luminosity accelerators have greatly increased the interest in semi-exclusive and exclusive reactions involving nucleons. The relevant theoretical information is contained in the nucleon...
Sasaki, T., Yoneyama, N., Nakamura, Y., Kobayashi, N., Ikemoto, Y., Moriwaki, T., ...
We investigated the infrared optical spectra of an organic dimer Mott insulator $\kappa$-(BEDT-TTF)$_{2}$Cu[N(CN)$_{2}$]Cl, which was irradiated with X-rays. We observed that the irradiation caused a...
The electric dipole moment of the nucleon from simulations at imaginary vacuum angle theta (2008)
Horsley, R., Izubuchi, T., Nakamura, Y., Pleiter, D., Rakow, P. E. L., Schierholz, G., ...
We compute the electric dipole moment of proton and neutron from lattice QCD simulations with N_f=2 flavors of dynamical quarks at imaginary vacuum angle theta. The calculation proceeds via the CP...
Flux-driven Josephson parametric amplifier (2008)
Yamamoto, T., Inomata, K., Watanabe, M., Matsuba, K., Miyazaki, T., Oliver, W. D., ...
We have developed a Josephson parametric amplifier, comprising a superconducting coplanar waveguide resonator terminated by a dc SQUID (superconducting quantum interference device). An external field...
Linear MHD stability computations in 3D plasmas (2008)
Cooper, W.A., Nakamura, Y., Wakatani, M., Gruber, R., Merazzi, S., Anderson, D.V., ...
betap-collapse-induced VDE and its underlying mechanism in the TCV Tokamak (2008)
Nakamura, Y., Lister, J.B., Hofmann, F., Martin, Y.R., Moret, J.M., Vyas, P.
Plasma equilibrium response modelling experiments on the JT-60U and TCV tokamaks (2008)
Lister, J.B., Khayrutdinov, R., Limebeer, D.J.N., Lukash, V., Nakamura, Y., Sharma, A., ...
Linear and non-linear plasma equilibrium responses on the JT-60U and TCV tokamaks (2008)
Lister, J.B., Khayrutdinov, R., Limebeer, D.J.N., Lukash, V., Nakamura, Y., Sharma, A., ...
Plasma equilibrium response modelling and validation on JT-60U (2008)
Lister, J.B., Sharma, A., Limebeer, D.J.N., Nakamura, Y., Wainwright, J.P., Yoshino, R.
Nakamura, Y., Matsumoto, T., Wakatani, M., Galkin, S. A., Drozdov, V. V., Martynov, A. A., ...
A particular configuration of the LHD stellarator with an unusually flat pressure profile has been chosen to be a test case for comparison of the MHD stability property predictions of different...
Configuration flexibility and extended regimes in Large Helical Device (2008)
Yamada, H., Komori, A., Ohyabu, N., Kaneko, O., Kawahata, K., Watanabe, K. Y., ...
Recent experimental results in the Large Helical Device have indicated that a large pressure gradient can be formed beyond the stability criterion for the Mercier (high-n) mode. While the stability...
MHD characteristics in the high beta regime of the Large Helical Device (2008)
Sakakibara, S., Yamada, H., Watanabe, K., Narushima, Y., Toi, K., Ohdachi, S., ...
The highest volume averaged beta values beta (t) of 2.2% at B-t = 0.75 T (gas puff) and 2.4% at D-t = 1.3 T (pellet) in helical devices have been achieved in LHD. The beta (t) dependence of MHD...
Linear and non-linear plasma equilibrium responses on the JT-60U and TCV tokamaks (2008)
Lister, J. B., Khayrutdinov, R., Limebeer, D. J. N., Lukash, V., Nakamura, Y., Sharma, A., ...
Although linear response models are useful for feedback controller design, their linear time-invariant properties cannot simulate the evolution of a full plasma discharge. A suitable code for this...
Plasma equilibrium response modelling and validation on JT-60U (2008)
Lister, J. B., Sharma, A., Limebeer, D. J. N., Nakamura, Y., Wainwright, J. P., Yoshino, R.
A systematic procedure to identify the plasma equilibrium response to the poloidal field coil voltages has been applied to the JT-60U tokamak. The required response was predicted with a high accuracy...
Impact of heat deposition profile on global confinement of NBI heated plasmas in the LHD (2008)
Yamada, H., Murakami, S., Yamazaki, K., Kaneko, O., Miyazawa, J., Sakamoto, R., ...
Energy confinement and heat transport of net-current-free NBI heated plasmas in the large helical device (LHD) are discussed with emphasis on density and power deposition profile dependences....
Recent advances in the LHD experiment (2008)
Motojima, O., Ohyabu, N., Komori, A., Kaneko, O., Yamada, H., Kawahata, K., ...
In the first four years of the LHD experiment, several encouraging results have emerged, the most significant of which is that MHD stability and good transport are compatible in the inward shifted...
Confinement characteristics of the quasi-axisymmetric stellarator CHS-qa (2008)
Okamura, S., Matsuoka, K., Nishimura, S., Isobe, M., Suzuki, C., Shimuzu, A., ...
A low aspect ratio stellarator CHS-qa with a quasi-axisymmetric configuration has been designed at NIFS, whose main objective is the experimental study of confinement improvement. The high beta...
Review on the progress of the LHD experiment (2008)
Motojima, O., Yamada, H., Komori, A., Watanabe, K. Y., Mutoh, T., Takeiri, Y., ...
Recent progress in the Large Helical Device (LHD) experiment during the last 2 yr is reviewed. The LHD has been extending its operational regime toward fusion-relevant conditions while taking...
Chapter 3: MHD stability, operational limits and disruptions (2008)
Hender, T. C., Wesley, J. C., Bialek, J., Bondeson, A., Boozer, A. H., Buttery, R. J., ...
Progress in the area of MHD stability and disruptions, since the publication of the 1999 ITER Physics Basis document (1999 Nucl. Fusion 39 2137-2664), is reviewed. Recent theoretical and experimental...
Intrabasement reflections of the Ontong Java Plateau: implications for plateau construction (2008)
Inoue, H., Coffin, M.F., Nakamura, Y., Mochizuki, K., Kroenke, L.W.
Spectroscopy of superconducting charge qubits coupled by a Josephson inductance (2008)
Yamamoto, T., Watanabe, M., You, J. Q., Pashkin, Yu. A., Astafiev, O., Nakamura, Y., ...
We have designed and experimentally implemented a circuit of inductively-coupled superconducting charge qubits, where a Josephson junction is used as an inductance, and the coupling between the...
Condition for emergence of complex eigenvalues in the Bogoliubov-de Gennes equations (2008)
Nakamura, Y., Mine, M., Okumura, M., Yamanaka, Y.
The condition for the appearance of dynamical instability of the Bose-condensed system, characterized by the emergence of complex eigenvalues in the Bogoliubov-de Gennes equations, is studied...
Interqubit coupling mediated by a high-excitation-energy quantum object (2008)
Ashhab, S., Niskanen, Antti, Harrabi, K., Nakamura, Y., Picot, T., De Groot, P. C., ...
Physical Review B - Condensed Matter and Materials Physics Vol. 77 Nr.1, Art. No. 014510
Comparative Divertor-Transport Study for W7-AS and LHD (2008)
Feng, Y., Kobayashi, M., Ashikawa, N., Giannone, L., König, R., LHD Experimental Group, ...
Applications of HINT2 code to stellarator/helitron (2008)
Suzuki, Y., Nakajima, N., Geiger, J., Yamamoto, S., Watanabe, K. Y., Sakakibara, S., ...
The Spin Structure of the Pion. (2008)
D. Brömmel, DESY Forschung Hochenergiephysik, M. Diehl, M. Göckeler, Ph. Hägler, R. Horsley, ...
Journal article
Lunar subsurface investigated from correlation of seismic noise. (2007)
Larose, Eric, Campillo, Michel, Khan, A., Nakamura, Y.
By correlating seismic noise recorded by four sensors placed on the Moon during the Apollo 17 mission, we have retrieved a well-defined dispersed Rayleigh wave pulse. Inversion of its group velocity...
Decoherence in a superconducting flux qubit with a pi-junction (2007)
Kato, T., Golubov, Dr. A., Nakamura, Y.
We consider the use of a pi junction for flux qubits to realize degenerate quantum levels without external magnetic field. On the basis of the Caldeira-Leggett model, we derive an effective...
Decoherence in a superconducting flux qubit with a pi-junction (2007)
Kato, T., Golubov, A.A., Nakamura, Y.
We consider the use of a pi junction for flux qubits to realize degenerate quantum levels without external magnetic field. On the basis of the Caldeira-Leggett model, we derive an effective...
Oceanic crust and Moho of the Pacific Plate in the eastern Ogasawara Plateau region (2007)
Tsuji, T., Nakamura, Y., Tokuyama, H., Coffin, M.F., Koda, K.
To show the structure of oceanic crust and Moho around the eastern Ogasawara Plateau, we have analyzed industry-standard two-dimensional multichannel seismic reflection data. To obtain improved...
Observation of Magnetohydrodynamic Instabilities in Heliotron J Plasmas (2007)
Yamamoto, S., Nagasaki, K., Suzuki, Y., Mizuuchi, T., Okada, H., Kobayashi, S., ...
Chapter 3: MHD stability, operational limits and disruptions (2007)
Hender, T. C., Wesley, J. C., Bialek, J., Bondeson, A., Boozer, A. H., Buttery, R. J., ...
Edge transport control with the local island divertor and recent progress in LHD (2007)
Kobayashi, M., Ohyabu, N., Mutoh, T., Kumazawa, R., Feng, Y., Shoji, M., ...
D. Brömmel, DESY Forschung Hochenergiephysik, R. Horsley, S.M. Morozov, Y. Nakamura, ...
Contribution to a conf. proceeding (journal)
Extremely high quantum efficiency of donor-acceptor-pair emission in N-and-B-doped 6H-SiC (2006)
Kamiyama, S, Maeda, T, Nakamura, Y, Iwaya, M, Amano, H, Akasaki, I, ...
Overview of Progress in LHD Experiments (2006)
Komori, A., Morisaki, T., Mutoh, T., Sakakibara, S., Takeiri, Y., Kumazawa, R., ...
Recent progress in Large Helical Device experiments (2006)
Komori, A., Morisaki, T., Mutoh, T., Sakakibara, S., Takeiri, Y., Kumazawa, R., ...
Average and local structures in hydrogen absorbing Ti-Cr-Mo alloy (2006)
Iwase, K, Kamiyama, T, Nakamura, Y, Mori, K, Yonemura, M, Harjo, S, ...
Extremely high quantum efficiency of donor-acceptor-pair emission in N-and-B-doped 6H-SiC (2006)
Kamiyama, S, Maeda, T, Nakamura, Y, Iwaya, M, Amano, H, Akasaki, I, ...
Overview of progress in LHD experiments (2006)
Komori, A, Morisaki, T, Mutoh, T, Sakakibara, S, Takeiri, Y, Kumazawa, R, ...
A simulation study on inductive ITB control in reversed shear tokamak discharges (2006)
Nakamura, Y, Tobita, K, Fukuyama, A, Takei, N, Takase, Y, Ozeki, T, ...
Epitaxial manganate thin films by sputtering for spin injection into high T-c superconductors (2006)
Lmouchter, M, Endo, H, Nakamura, Y, Iwayama, M, Tanaka, Y, Suzuki, M
Development of integrated simulation system for helical plasmas (2006)
Nakamura, Y, Yokoyama, M, Nakajima, N, Watanabe, KY, Funaba, H, Suzuki, Y, ...
Recent progress in large helical device experiments (2006)
Komori, A, Morisaki, T, Mutoh, T, Sakakibara, S, Takeiri, Y, Kumazawa, R, ...
Measurements of charge exchange neutral particles in Heliotron J (2006)
Kaneko, M., Kobayashi, S., Mizuuchi, T., Nagasaki, K., Okada, H., Hanatani, K., ...
Compression of CT images - Applying the Hybrid Coding (2005)
Yamamoto, K., Nagao, J., Truong, T.D., Nakamura, Y., Terai, H., Nishihori, K., ...
Third Symposium on "Intelligent Media Integration for Social Information Infrastructure" December 6, 2005, p.108
Extracting ROI by using Eye Movement Analysis (2005)
Yamamoto, K., Nagao, J., Truong, T.D., Nakamura, Y., Terai, H., Nishihori, K., ...
Third Symposium on "Intelligent Media Integration for Social Information Infrastructure" December 6, 2005, p.108
Miyachi, T, Fujii, M, Hasebe, N, Kobayashi, M, Kuraza, G, Nagashima, A, ...
Miyachi, T, Fujii, M, Hasebe, N, Kobayashi, M, Kuraza, G, Nagashima, A, ...
Confinement and MHD stability in the Large Helical Device (2005)
Motojima, O., Ida, K., Watanabe, K. Y., Nagayama, Y., Komori, A., Morisaki, T., ...
Overview of confinement and MHD stability in the Large Helical Device (2005)
Motojima, O., Ida, K., Watanabe, K. Y., Nagayama, Y., Komori, A., Morisaki, T., ...
Krusell, L., Krause, K., Ott, T., Desbrosses, G., Kramer, U., Sato, S., ...
Symbiotic nitrogen fixation (SNF) by intracellular rhizobia within legume root nodules requires the exchange of nutrients between host plant cells and their resident bacteria. Little is known at the...
Type IX collagen is crucial for normal hearing (2005)
Asamura, K., Abe, S., Imamura, Y., Aszodi, A., Suzuki, N., Hashimoto, S., ...
Functional identification of unknown genes by integration of metabolomics and transcriptomics (2005)
Hirai, M. Y., Klein, M., Fujikawa, Y., Yano, M., Goodenowe, D. B., Yamazaki, Y., ...
Miyachi, T, Fujii, M, Hasebe, N, Kobayashi, M, Kuraza, G, Nagashima, A, ...
Radius of gyration of polystyrene combs and centipedes in a Theta solvent (2005)
Terao, K, Farmer, BS, Nakamura, Y, Iatrou, H, Hong, KL, Mays, JW