Brown-Rho Scaling in the Strong Coupling Lattice QCD (2008)
Ohnishi, A., Kawamoto, N., Miura, K.
We examine the Brown-Rho scaling for meson masses in the strong coupling limit of lattice QCD with one species of staggered fermion. Analytical expression of meson masses is derived at finite...
The quantum space-time of c = \Gamma2 gravity (2007)
J. Ambjrn, K. Anagnostopoulos, T. Ichihara, L. Jensen, N. Kawamoto, Y. Watabiki, ...
hep-lat/9706009
Quantum geometry of topological gravity (2007)
J. Ambjrn, K. N. Anagnostopoulos, T. Ichihara, L. Jensen, N. Kawamoto, Y. Watabiki, ...
We study a c = \Gamma2 conformal field theory coupled to two-dimensional quantum gravity by means of dynamical triangulations. We define the geodesic distance r on the triangulated surface with N...
Lattice supersymmetry in 1D with two supercharges (2007)
Arianos, S., D'Adda, A., Kawamoto, N., Saito, J.
A consistent formulation of a fully supersymmetric theory on the lattice has been a long standing challenge. In recent years there has been a renewed interest on this problem with different...
Ohnishi, A ., Kawamoto, N., Miura, K.
We study the phase diagram of quark matter at finite temperature (T) and chemical potential (μ) in the strong coupling region of lattice QCD for colour SU(3). Baryon has effects to extend the hadron...
Ohnishi, A ., Kawamoto, N., Miura, K.
We study the phase diagram of quark matter at finite temperature (T) and chemical potential (μ) in the strong coupling region of lattice QCD for colour SU(3). Baryon has effects to extend the hadron...
Strong coupling limit/region of lattice QCD (2007)
Ohnishi, A., Kawamoto, N., Miura, K., Tsubakihara, K., Maekawa, H.
We study the phase diagram of quark matter and nuclear properties based on the strong coupling expansion of lattice QCD. Both of baryon and finite coupling correction are found to have effects to...
Ohnishi, A., Kawamoto, N., Miura, K.
We study the phase diagram of quark matter at finite temperature (T) and chemical potential (mu) in the strong coupling region of lattice QCD for color SU(3). Baryon has effects to extend the hadron...
Kawamoto, N., Miura, K., Ohnishi, A., Ohnuma, T.
We study the phase diagram of quark matter at finite temperature (T) and chemical potential (µ) in the strong coupling limit of lattice QCD for color SU(3). We derive an analytical expression of the...
Kawamoto, N., Miura, K., Ohnishi, A., Ohnuma, T.
We study the phase diagram of quark matter at finite temperature (T) and chemical potential (µ) in the strong coupling limit of lattice QCD for color SU(3). We derive an analytical expression of the...
Kawamoto, N., Miura, K., Ohnishi, A., Ohnuma, T.
We study the phase diagram of quark matter at finite temperature (T) and finite chemical potential (mu) in the strong coupling limit of lattice QCD for color SU(3). We derive an analytical expression...
Dirac-Kaehler fermion with noncommutative differential forms on a lattice (2003)
Noncommutativity between a differential form and a function allows us to define differential operator satisfying Leibniz's rule on a lattice. We propose a new associative Clifford product defined on...
Recursive sampling simulations of 3D gravity coupled to scalar fermions (2000)
Ambjorn, J., Boulatov, D. V., Kawamoto, N., Watabiki, Y.
We study numerically the phase structure of a model of 3D gravity interacting with scalar fermions. We measure the 3D counterpart of the "string" susceptibility exponent as a function of the inverse...
Lattice Chern-Simons Gravity via Ponzano-Regge Model (1999)
Kawamoto, N., Nielsen, H. B., Sato, N.
We propose a lattice version of Chern-Simons gravity and show that the partition function coincides with Ponzano-Regge model and the action leads to the Chern-Simons gravity in the continuum limit....
Statistical Investigation on the Mechanical Properties of Austempered Ductile Iron. (1998)
Shiokawa, T., Takahashi, R., Kawamoto, N.
Japan Ductile Cast Iron Association (JDCIA) organized an investigation committee for developing high grade ductile iron since 1982. The committee consists of 15 leading ductile iron foundries in...
Quantization of Even-Dimensional Actions of Chern-Simons Form with Infinite Reducibility (1998)
Kawamoto, N., Suehiro, K., Tsukioka, T., Umetsu, H.
We investigate the quantization of even-dimensional topological actions of Chern-Simons form which were proposed previously. We quantize the actions by Lagrangian and Hamiltonian formulations {\`a}...
Intrinsic Geometric Structure of c=-2 Quantum Gravity (1997)
Ambjorn, J., Anagnostopoulos, K. N., Ichihara, T., Jensen, L., Kawamoto, N., Watabiki, Y., ...
We couple c=-2 matter to 2-dimensional gravity within the framework of dynamical triangulations. We use a very fast algorithm, special to the c=-2 case, in order to test scaling of correlation...
The quantum space-time of c=-2 gravity (1997)
Ambjorn, J., Anagnostopoulos, K. N., Ichihara, T., Jensen, L., Kawamoto, N., Watabiki, Y., ...
We study the fractal structure of space-time of two-dimensional quantum gravity coupled to c=-2 conformal matter by means of computer simulations. We find that the intrinsic Hausdorff dimension d_H =...
Quantum geometry of topological gravity (1996)
Ambjorn, J., Anagnostopoulos, K. N., Ichihara, T., Jensen, L., Kawamoto, N., Watabiki, Y., ...
We study a c=-2 conformal field theory coupled to two-dimensional quantum gravity by means of dynamical triangulations. We define the geodesic distance r on the triangulated surface with N triangles,...
Kawai, H., Kawamoto, N., Mogami, T., Watabiki, Y.
We develop a transfer matrix formalism for two-dimensional pure gravity. By taking the continuum limit, we obtain a "Hamiltonian formalism'' in which the geodesic distance plays the role of time....
POWER SPECTRAL ANALYSIS OF HEART RATE VARIABILITY AFTER SPINAL ANAESTHESIA (1993)
KAWAMOTO, N., TANAKA, N., TAKASAKI, M.
Power spectral analysis of heart rate (HR) variability is a useful tool with which to assess cardiac autonomic activity. The low frequency bands have been considered as both sympathetically and...
Leaky phenotype of X-linked agammaglobulinaemia in a Japanese family
Kaneko, H, Kawamoto, N, Asano, T, Mabuchi, Y, Horikoshi, H, Teramoto, T, ...
X-linked agammaglobulinaemia (XLA) is an inherited immunodeficiency that is caused by a block in early B-cell differentiation. Whereas early B precursors in the bone marrow are present in substantial...