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18 papers · 1 filter
Energy Centroids of Spin States by Random Two-body Interactions
Y. M. Zhao, A. Arima, K. Ogawa
In this paper we study the behavior of energy centroids (denoted as ) of spin states in the presence of random two-body interactions, for systems ranging from very s…
D-brane Construction for Non-Abelian Walls
Minoru Eto, Youichi Isozumi, Muneto Nitta +3
Supersymmetric U(Nc) gauge theory with Nf massive hypermultiplets in the fundamental representation is given by the brane configuration made of Nc fractional Dp-branes stuck at the…
Black Holes in Massive Star Clusters
Steve McMillan, Holger Baumgardt, Simon Portegies Zwart +2
Close encounters and physical collisions between stars in young dense clusters can result in new channels for stellar evolution, and may lead to the formation of very massive stars…
Four-electron shell structures and an interacting two-electron system in carbon nanotube quantum dots
S. Moriyama, T. Fuse, M. Suzuki +2
Low-temperature transport measurements have been carried out on single-wall carbon nanotube quantum dots in a weakly coupled regime in magnetic fields up to 8 Tesla. Four-electron…
A `checkerboard' electronic crystal state in lightly hole-doped Ca_{2-x}Na_{x}CuO_{2}Cl_{2}
T. Hanaguri, C. Lupien, Y. Kohsaka +5
The phase diagram of hole-doped copper oxides shows four different electronic phases existing at zero temperature. Familiar among these are the Mott insulator, high-transition-temp…
Simulation of Transitions between "Pasta" Phases in Dense Matter
Gentaro Watanabe, Toshiki Maruyama, Katsuhiko Sato +2
Calculations of equilibrium properties of dense matter predict that at subnuclear densities nuclei can be rodlike or slablike. To investigate whether transitions between phases wit…