Zobrazeno 41 - 50
of 31 298
pro vyhledávání: '"Saito, H."'
We extend our previous study of the QCD phase structure in the heavy quark region to non-zero chemical potentials. To identify the critical point where the first order deconfining transition terminates, we study an effective potential defined by the
Externí odkaz:
http://arxiv.org/abs/1202.6113
Publikováno v:
Appl. Phys. Express 5, 023003 (2012)
Spin accumulation induced in p-type germanium from Fe/MgO tunnel contacts is studied as a function of hole concentration p (10^16 - 10^19 cm-3). For all p, the contacts are free of rectification and Schottky barrier, guaranteeing spin injection into
Externí odkaz:
http://arxiv.org/abs/1201.5552
Publikováno v:
Phys. Rev. B 85, 094401 (2012)
The recently observed Seebeck spin tunneling, the thermoelectric analog of spin-polarized tunneling, is described. The fundamental origin is the spin dependence of the Seebeck coefficient of a tunnel junction with at least one ferromagnetic electrode
Externí odkaz:
http://arxiv.org/abs/1112.3430
Publikováno v:
PoS(Lattice 2011)208
We propose a new approach to finite density QCD based on a histogram method with phase quenched simulations at finite chemical potential. Integrating numerically the derivatives of the logarithm of the quark determinant with respect to the chemical p
Externí odkaz:
http://arxiv.org/abs/1111.2116
Publikováno v:
Journal of Applied Physics 111, 023103 (2012)
The origin and properties of the transverse non-reciprocal magneto-optical (nMO) effect were studied. The transverse nMO effect occurs in the case when light propagates perpendicularly to the magnetic field. It was demonstrated that light can experie
Externí odkaz:
http://arxiv.org/abs/1107.2996
Publikováno v:
Phys. Rev. D 84, 054502 (2011)
We study the quark mass dependence of the finite temperature QCD phase transition in the heavy quark region using an effective potential defined through the probability distribution function of the average plaquette. Performing a simulation of SU(3)
Externí odkaz:
http://arxiv.org/abs/1106.0974
Autor:
Yamazaki, T., Miyazaki, A., Suehara, T., Namba, T., Asai, S., Kobayashi, T., Saito, H., Urushizaki, Y., Ogawa, I., Idehara, T., Sabchevski, S.
Positronium is an ideal system for the research of the bound state QED. The hyperfine splitting of positronium (Ps-HFS, about 203 GHz) is an important observable but all previous measurements of Ps-HFS had been measured indirectly using Zeeman splitt
Externí odkaz:
http://arxiv.org/abs/1105.4352
Autor:
Ishida, A., Sasaki, Y., Akimoto, G., Suehara, T., Namba, T., Asai, S., Kobayashi, T., Saito, H., Yoshida, M., Tanaka, K., Yamamoto, A.
Positronium is an ideal system for the research of the quantum electrodynamics (QED) in bound state. The hyperfine splitting (HFS) of positronium, $\Delta_{\mathrm{HFS}}$, gives a good test of the bound state calculations and probes new physics beyon
Externí odkaz:
http://arxiv.org/abs/1105.4392
Charmonium spectral functions with the variational method in zero and finite temperature lattice QCD
Publikováno v:
Phys. Rev. D 84 (2011) 094504
We propose a method to evaluate spectral functions on the lattice based on a variational method. On a lattice with a finite spatial extent, spectral functions consist of discrete spectra only. Adopting a variational method, we calculate the locations
Externí odkaz:
http://arxiv.org/abs/1104.3384
Autor:
Ejiri, S., Nakagawa, Y., Aoki, S., Kanaya, K., Ohno, H., Saito, H., Hatsuda, T., Maezawa, Y., Umeda, T.
Publikováno v:
PoS LATTICE2010 (2010) 181
We study scaling behavior of a chiral order parameter performing a simulation of two-flavor QCD with improved Wilson quarks. It has been shown that the scaling behavior of the chiral order parameter defined by a Ward-Takahashi identity agrees with th
Externí odkaz:
http://arxiv.org/abs/1101.5582