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19922026
Showing 1999Show all

67 papers · 1 filter

cond-mat.str-el1999★ 52 cited

Spin-dependent transport in a quasiballistic quantum wire

C. -T. Liang, M. Pepper, M. Y. Simmons +2

We describe the transport properties of a 5 m long one-dimensional (1D) quantum wire. Reduction of conductance plateaux due to the introduction of weakly disorder scattering are…

physics.atom-ph1999★ 60 cited

Calculation of parity and time invariance violation in the radium atom

V. A. Dzuba, V. V. Flambaum, J. S. M. Ginges

Parity (P) and time (T) invariance violating effects in the Ra atom are strongly enhanced due to close states of opposite parity, the large nuclear charge Z and the collective natu…

cond-mat.str-el1999★ 34 cited

Spontaneous dimer order, excitation spectrum, and quantum phase transitions in the J1-J2 Heisenberg model

Valeri N. Kotov, Jaan Oitmaa, Oleg Sushkov +1

We overview some recent work and present new results on the ground state properties and the spectrum of excitations of the two-dimensional frustrated Heisenberg antiferromagnet. Sp…

physics.atom-ph1999★ 119 cited

Mechanisms of positron annihilation on molecules

G. F. Gribakin

The aim of this work is to identify the mechanisms responsible for very large rates and other peculiarities observed in low-energy positron annihilation on molecules. The two mecha…

hep-lat1999★ 41 cited

A New Finite-lattice study of the Massive Schwinger Model

P. Sriganesh, R. Bursill, C. J. Hamer

A new finite lattice calculation of the low lying bound state energies in the massive Schwinger model is presented, using a Hamiltonian lattice formulation. The results are compare…

astro-ph1999★ 12 cited

The Origin of \lya Absorption Systems at ---Implications from the Hubble Deep Field

Hsiao-Wen Chen, Kenneth M. Lanzetta, Alberto Fernández-Soto

The Hubble Deep Field images have provided us with a unique chance to relate statistical properties of high-redshift galaxies to statistical properties of \lya absorption systems.…