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6 papers · 1 filter
Macroscopic Quantum Tunneling and Dissipation of Domain Wall in Ferromagnetic Metals
Gen Tatara, Hidetoshi Fukuyama
The depinning of a domain wall in ferromagentic metal via macroscopic quantum tunneling is studied based on the Hubbard model. The dynamics of the magnetization verctor is shown to…
Color Confinement and Dynamical Effect of Light Quarks in the Dual Ginzburg-Landau Theory
Hideo Suganuma, Shoichi Sasaki, Hiroshi Toki
We study nonperturbative features of QCD using the dual Ginzburg-Landau theory. The color confinement is realized through the dual Higgs mechanism, which is brought by QCD-monopole…
Dynamical Chiral-Symmetry Breaking in the Dual Ginzburg-Landau Theory
Shoichi Sasaki, Hideo Suganuma, Hiroshi Toki
We study the effect of QCD-monopole condensation on the dynamical chiral-symmetry breaking by using the dual Ginzburg-Landau theory of QCD. We formulate the Schwinger-Dyson equatio…
Shell model on a random gaussian basis
K. Varga, R. J. Liotta
Pauli-projected random gaussians are used as a representation to solve the shell model equations. The elements of the representation are chosen by a variational procedure. This sch…
Negative 4-Probe Conductances of Mesoscopic Superconducting Wires
SJ Robinson, CJ Lambert, M Jeffery
We analyze the longitudinal 4-probe conductance of mesoscopic normal and superconducting wires and predict that in the superconducting case, large negative values can arise for bot…
Color Confinement, Quark Pair Creation and Dynamical Chiral-Symmetry Breaking in the Dual Ginzburg-Landau Theory
Hideo Suganuma, Shoichi Sasaki, Hiroshi Toki
We study the color confinement, the - pair creation and the dynamical chiral-symmetry breaking of nonperturbative QCD by using the dual Ginzburg-Landau theory, where QCD…