Volume 69, Issue 1

6 July 1992

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Announcement

Revised Policies and Procedures, and Other Changes

Phys. Rev. Lett. 69, 1 (1992) - Published 6 July, 1992

LETTERS

General Physics

Time reversal in stochastic processes and the Dirac equation

D. G. C. McKeon and G. N. Ord

Phys. Rev. Lett. 69, 3 (1992) - Published 6 July, 1992

Asymptotics of level-spacing distributions for random matrices

Estelle L. Basor, Craig A. Tracy, and Harold Widom

Phys. Rev. Lett. 69, 5 (1992) - Published 6 July, 1992

Monte Carlo technique for universal finite-size-scaling functions: Application to the 3-state Potts model on a square lattice

Koo-Chul Lee

Phys. Rev. Lett. 69, 9 (1992) - Published 6 July, 1992

Spreading of damage: An unexpected disagreement between the sequential and parallel updatings in Monte Carlo simulations

F. D. Nobre, A. M. Mariz, and E. S. Sousa

Phys. Rev. Lett. 69, 13 (1992) - Published 6 July, 1992

Elementary Particles and Fields

Gauge independent analysis of Chern-Simons theory with matter coupling

R. Banerjee

Phys. Rev. Lett. 69, 17 (1992) - Published 6 July, 1992

Quark confinement and number of flavors in strong coupling lattice QCD

Y. Iwasaki, K. Kanaya, S. Sakai, and T. Yoshié

Phys. Rev. Lett. 69, 21 (1992) - Published 6 July, 1992

Tau polarization asymmetry as a probe of Z’ couplings

Jeffrey D. Anderson, Matthew H. Austern, and Robert N. Cahn

Phys. Rev. Lett. 69, 25 (1992) - Published 6 July, 1992

Measurement of the production and muonic decay rate of W and Z bosons in pp¯ collisions at √s =1.8 TeV

F. Abe et al.

Phys. Rev. Lett. 69, 28 (1992) - Published 6 July, 1992

Electric dipole moment of the top quark in Higgs-boson-exchange models of CP nonconservation

A. Soni and R. M. Xu

Phys. Rev. Lett. 69, 33 (1992) - Published 6 July, 1992

Nuclear Physics

Absolute alpha decay width of ${}^{212}{Po}$ in a combined shell and cluster model

K. Varga, R. G. Lovas, and R. J. Liotta

Phys. Rev. Lett. 69, 37 (1992) - Published 6 July, 1992

High momentum transfer $R_{T,}$ L inclusive response functions for ${}^{3, 4}{He}$

Z.-E. Meziani et al.

Phys. Rev. Lett. 69, 41 (1992) - Published 6 July, 1992

Intermittency: A test of nuclear fragmentation described in terms of sequential decay models

B. Elattari, J. Richert, and P. Wagner

Phys. Rev. Lett. 69, 45 (1992) - Published 6 July, 1992

Atomic, Molecular, and Optical Physics

Observation of quantized motion of Rb atoms in an optical field

P. S. Jessen, C. Gerz, P. D. Lett, W. D. Phillips, S. L. Rolston, R. J. C. Spreeuw, and C. I. Westbrook

Phys. Rev. Lett. 69, 49 (1992) - Published 6 July, 1992

Explicit demonstration of the convergence of the close-coupling method for a Coulomb three-body problem

Igor Bray and Andris T. Stelbovics

Phys. Rev. Lett. 69, 53 (1992) - Published 6 July, 1992

Formation of positronium hydride

D. M. Schrader, Finn M. Jacobsen, Niels-Peter Frandsen, and Ulrik Mikkelsen

Phys. Rev. Lett. 69, 57 (1992) - Published 6 July, 1992

Conformations of polyampholytes

Yacov Kantor, Hao Li, and Mehran Kardar

Phys. Rev. Lett. 69, 61 (1992) - Published 6 July, 1992

Nonlinear optical response of conjugated polymers: Electron-hole anharmonic-oscillator picture

Shaul Mukamel and Hong Xiang Wang

Phys. Rev. Lett. 69, 65 (1992) - Published 6 July, 1992

Structural and electronic properties of $C_{84}$ : A first-principles study

Xiao-Qian Wang, C. Z. Wang, B. L. Zhang, and K. M. Ho

Phys. Rev. Lett. 69, 69 (1992) - Published 6 July, 1992

Nonlinear Dynamics, Fluid Dynamics, Classical Optics, Etc.

Large-amplitude traveling electromagnetic waves in collisionless magnetoplasmas

C. Chen, J. A. Davies, G. Zhang, and J. S. Wurtele

Phys. Rev. Lett. 69, 73 (1992) - Published 6 July, 1992

Stimulated free-bound emission from x-ray laser-interaction plasmas

R. Kodama

Phys. Rev. Lett. 69, 77 (1992) - Published 6 July, 1992

Time-resolved experimental study of shear viscosity in the course of spinodal demixing

A. Emanuele and M. B. Palma-Vittorelli

Phys. Rev. Lett. 69, 81 (1992) - Published 6 July, 1992

Plasma and Beam Physics

Nonlinear evolution of the modified Simon-Hoh instability via a cascade of sideband instabilities in a weak beam plasma system

Y. Sakawa, C. Joshi, P. K. Kaw, V. K. Jain, T. W. Johnston, F. F. Chen, and J. M. Dawson

Phys. Rev. Lett. 69, 85 (1992) - Published 6 July, 1992

Condensed Matter: Structure, Etc.

Ethanol on graphite: The influence of hydrogen bonding on surface melting

K. W. Herwig and F. R. Trouw

Phys. Rev. Lett. 69, 89 (1992) - Published 6 July, 1992

Local structure and density profile of polymer brushes

P. Auroy, Y. Mir, and L. Auvray

Phys. Rev. Lett. 69, 93 (1992) - Published 6 July, 1992

Motion of interacting point defects in nematics

L. M. Pismen and B. Y. Rubinstein

Phys. Rev. Lett. 69, 96 (1992) - Published 6 July, 1992

Molecular-beam epitaxial growth and surface diffusion

David A. Kessler, Herbert Levine, and Leonard M. Sander

Phys. Rev. Lett. 69, 100 (1992) - Published 6 July, 1992

Burgers vector content of an interfacial ledge

R. Bonnet, M. Loubradou, and J. M. Pénisson

Phys. Rev. Lett. 69, 104 (1992) - Published 6 July, 1992

Microscopic calculations of phonons in polarizable-ion approach

O. V. Ivanov and E. G. Maksimov

Phys. Rev. Lett. 69, 108 (1992) - Published 6 July, 1992

Shear-induced collapse of the dilute lamellar phase

Sriram Ramaswamy

Phys. Rev. Lett. 69, 112 (1992) - Published 6 July, 1992

Reactions of point defects and dopant atoms in silicon

N. E. B. Cowern, G. F. A. van de Walle, P. C. Zalm, and D. J. Oostra

Phys. Rev. Lett. 69, 116 (1992) - Published 6 July, 1992

Strong supercooling and stimulation of the A-B transition in superfluid ${}^{3}{He}$

P. Schiffer, M. T. O’Keefe, M. D. Hildreth, Hiroshi Fukuyama, and D. D. Osheroff

Phys. Rev. Lett. 69, 120 (1992) - Published 6 July, 1992

Molecular dynamics of a microscopic droplet on solid surface

J. A. Nieminen, D. B. Abraham, M. Karttunen, and K. Kaski

Phys. Rev. Lett. 69, 124 (1992) - Published 6 July, 1992

Condensed Matter: Electronic Properties, Etc.

Hall conductance and adiabatic charge transport of leaky tori

Joseph E. Avron, Markus Klein, Ayelet Pnueli, and Lorenzo Sadun

Phys. Rev. Lett. 69, 128 (1992) - Published 6 July, 1992

Disassembling anyons

Frank Wilczek

Phys. Rev. Lett. 69, 132 (1992) - Published 6 July, 1992

Multiple charge states of substitutional oxygen in gallium arsenide

R. Jones and S. Öberg

Phys. Rev. Lett. 69, 136 (1992) - Published 6 July, 1992

Conductance and supercurrent discontinuities in atomic-scale metallic constrictions of variable width

C. J. Muller, J. M. van Ruitenbeek, and L. J. de Jongh

Phys. Rev. Lett. 69, 140 (1992) - Published 6 July, 1992

Work-function anisotropies as an origin of long-range surface forces

N. A. Burnham, R. J. Colton, and H. M. Pollock

Phys. Rev. Lett. 69, 144 (1992) - Published 6 July, 1992

Thermal enhancement of cotunneling in ultra-small tunnel junctions

T. M. Eiles, G. Zimmerli, H. D. Jensen, and John M. Martinis

Phys. Rev. Lett. 69, 148 (1992) - Published 6 July, 1992

Optical excitation of quasiparticle pairs in the vortex core of high- $T_{c}$ superconductors

K. Karraï, E. J. Choi, F. Dunmore, S. H. Liu, H. D. Drew, Qi Li, D. B. Fenner, Y. D. Zhu, and Fu-Chun Zhang

Phys. Rev. Lett. 69, 152 (1992) - Published 6 July, 1992

Novel interplay of Fermi-surface behavior and magnetism in a low-dimensional organic conductor

J. S. Brooks, C. C. Agosta, S. J. Klepper, M. Tokumoto, N. Kinoshita, H. Anzai, S. Uji, H. Aoki, A. S. Perel, G. J. Athas, and D. A. Howe

Phys. Rev. Lett. 69, 156 (1992) - Published 6 July, 1992

Brownian motion of vortex-antivortex excitations in very thin films of ${Bi}_{2}$ ${Sr}_{2}$ ${CaCu}_{2}$ $O_{8}$

C. T. Rogers, K. E. Myers, J. N. Eckstein, and I. Bozovic

Phys. Rev. Lett. 69, 160 (1992) - Published 6 July, 1992

Taking the square root of the discrete 1/ $r^{2}$ model

B. Sriram Shastry

Phys. Rev. Lett. 69, 164 (1992) - Published 6 July, 1992

Hubbard model in infinite dimensions: A quantum Monte Carlo study

M. Jarrell

Phys. Rev. Lett. 69, 168 (1992) - Published 6 July, 1992

Continuum approximation to fullerene molecules

José González, Francisco Guinea, and M. Angeles H. Vozmediano

Phys. Rev. Lett. 69, 172 (1992) - Published 6 July, 1992

Magnetic properties of undoped $C_{60}$

D. Coffey and S. A. Trugman

Phys. Rev. Lett. 69, 176 (1992) - Published 6 July, 1992

Photomagnetism of metals

V. L. Gurevich, R. Laiho, and A. V. Lashkul

Phys. Rev. Lett. 69, 180 (1992) - Published 6 July, 1992

Physical basis of the Mollwo-Ivey relation between lattice constant and optical absorption of defects in ionic crystals

M. S. Malghani and D. Y. Smith

Phys. Rev. Lett. 69, 184 (1992) - Published 6 July, 1992

Angular dependence of charge-transfer probabilities between $O^{-}$ and a Ni{100}-c(2×2)-O surface

C. C. Hsu, H. Bu, A. Bousetta, J. W. Rabalais, and P. Nordlander

Phys. Rev. Lett. 69, 188 (1992) - Published 6 July, 1992

Charge state of potassium on metal and semiconductor surfaces studied by low-energy $D^{+}$ scattering

R. Souda, W. Hayami, T. Aizawa, S. Otani, and Y. Ishizawa

Phys. Rev. Lett. 69, 192 (1992) - Published 6 July, 1992

Photoemission from Ir(001): Evidence for an orbital angular momentum dependence to x-ray photoelectron diffraction

L. E. Klebanoff and D. G. Van Campen

Phys. Rev. Lett. 69, 196 (1992) - Published 6 July, 1992

Cross-Disciplinary Physics

First-principles-derived dynamics of a surface reaction: Fluorine etching of Si(100)

Paul C. Weakliem, Christine J. Wu, and Emily A. Carter

Phys. Rev. Lett. 69, 200 (1992) - Published 6 July, 1992

Standing waves in catalysis at single crystal surfaces

Herbert Levine and Xiaoqin Zou

Phys. Rev. Lett. 69, 204 (1992) - Published 6 July, 1992

Geometry and foams: 2D dynamics and 3D statics

Joseph E. Avron and Dov Levine

Phys. Rev. Lett. 69, 208 (1992) - Published 6 July, 1992

COMMENTS

Comment on ‘‘Electron-phonon coupling and superconductivity in alkali-intercalated $C_{60}$ solid’’

Sudip Chakravarty, Sergei Khlebnikov, and Steven Kivelson

Phys. Rev. Lett. 69, 212 (1992) - Published 6 July, 1992

Schlüter et al. reply

M. Schlüter, M. Lannoo, M. Needels, G. A. Baraff, and D. Tománek

Phys. Rev. Lett. 69, 213 (1992) - Published 6 July, 1992

Comment on ‘‘Pseudospin symmetry and new collective modes of the Hubbard model’’

I. Fomin, P. Schmitteckert, and P. Wölfle

Phys. Rev. Lett. 69, 214 (1992) - Published 6 July, 1992

Zhang replies

Shoucheng Zhang

Phys. Rev. Lett. 69, 215 (1992) - Published 6 July, 1992

ERRATA

Consistent Description of High- $T_{c}$ Superconductors with the Three-Band Hubbard Model

G. Dopf, A. Muramatsu, and W. Hanke

Phys. Rev. Lett. 69, 216 (1992) - Published 6 July, 1992

Vortex Solutions in the Weinberg-Salam Model

Tanmay Vachaspati

Phys. Rev. Lett. 69, 216 (1992) - Published 6 July, 1992