Volume 75, Issue 13

25 September 1995

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LETTERS

Gravitation and Astrophysics

On the Formation of Black Holes in Nonsymmetric Gravity

Lior M. Burko and Amos Ori

Phys. Rev. Lett. 75, 2455 (1995) - Published 25 September, 1995

Elementary Particles and Fields

$CP$ Violation in $D^{0}$ - ${\bar{D}}^{0}$ Mixing

Lincoln Wolfenstein

Phys. Rev. Lett. 75, 2460 (1995) - Published 25 September, 1995

Nuclear Physics

Charge-Symmetry-Breaking Potentials from Isospin-Violating Meson-Baryon Coupling Constants

S. Gardner, C. J. Horowitz, and J. Piekarewicz

Phys. Rev. Lett. 75, 2462 (1995) - Published 25 September, 1995

Intrinsic vs Laboratory Frame Description of the Deformed Nucleus $^{48}$ Cr

E. Caurier, J. L. Egido, G. Martínez-Pinedo, A. Poves, J. Retamosa, L. M. Robledo, and A. P. Zuker

Phys. Rev. Lett. 75, 2466 (1995) - Published 25 September, 1995

Atomic, Molecular, and Optical Physics

Precise Optical Measurement of Lamb Shifts in Atomic Hydrogen

D. J. Berkeland, E. A. Hinds, and M. G. Boshier

Phys. Rev. Lett. 75, 2470 (1995) - Published 25 September, 1995

Electron-Energy and Angular-Distribution Theory for Low-Energy Ion-Atom Collisions

S. Yu. Ovchinnikov and J. H. Macek

Phys. Rev. Lett. 75, 2474 (1995) - Published 25 September, 1995

Nonlinear Dynamics, Fluid Dynamics, Classical Optics, Etc.

Double Crises in Two-Parameter Dynamical Systems

H. Bruce Stewart, Yoshisuke Ueda, Celso Grebogi, and James A. Yorke

Phys. Rev. Lett. 75, 2478 (1995) - Published 25 September, 1995

Saddle-Node Bifurcations on Fractal Basin Boundaries

Helena E. Nusse, Edward Ott, and James A. Yorke

Phys. Rev. Lett. 75, 2482 (1995) - Published 25 September, 1995

Quasicrystallization of Vortices in Drift-Wave Turbulence

Nikolai Kukharkin, Steven A. Orszag, and Victor Yakhot

Phys. Rev. Lett. 75, 2486 (1995) - Published 25 September, 1995

Plasma and Beam Physics

Corresponding States Hard-Sphere Model for the Diffusion Coefficients of Binary Dense-Plasma Mixtures

Yaakov Rosenfeld, Eran Nardi, and Zeev Zinamon

Phys. Rev. Lett. 75, 2490 (1995) - Published 25 September, 1995

Nonlinear Dynamics, Fluid Dynamics, Classical Optics, Etc.

High-Order Frequency Conversion in the Plasma Waveguide

H. M. Milchberg, C. G. Durfee III, and T. J. McIlrath

Phys. Rev. Lett. 75, 2494 (1995) - Published 25 September, 1995

Condensed Matter: Structure, Etc.

Surface Layering in Liquid Gallium: An X-Ray Reflectivity Study

M. J. Regan, E. H. Kawamoto, S. Lee, P. S. Pershan, N. Maskil, M. Deutsch, O. M. Magnussen, B. M. Ocko, and L. E. Berman

Phys. Rev. Lett. 75, 2498 (1995) - Published 25 September, 1995

Where Are the Hedgehogs in Quenched Nematics?

Mark Hindmarsh

Phys. Rev. Lett. 75, 2502 (1995) - Published 25 September, 1995

Electrostatic Pressure and Line Tension in a Langmuir Monolayer

S. Rivière, S. Hénon, J. Meunier, G. Albrecht, M. M. Boissonnade, and A. Baszkin

Phys. Rev. Lett. 75, 2506 (1995) - Published 25 September, 1995

Rotons and Quantum Evaporation from Superfluid $^{4}$ He

F. Dalfovo, A. Fracchetti, A. Lastri, L. Pitaevskii, and S. Stringari

Phys. Rev. Lett. 75, 2510 (1995) - Published 25 September, 1995

Invariant Points and Phase Transitions in Deuterium at Megabar Pressures

Alexander F. Goncharov, I. I. Mazin, Jon H. Eggert, Russell J. Hemley, and Ho-kwang Mao

Phys. Rev. Lett. 75, 2514 (1995) - Published 25 September, 1995

Emergence of Quenched Phases and Second Order Transitions for Sums of Multifractal Measures

Günter Radons

Phys. Rev. Lett. 75, 2518 (1995) - Published 25 September, 1995

Long-Lived Structures in Fragile Glass-Forming Liquids

Andrew I. Mel'cuk, Raphael A. Ramos, Harvey Gould, W. Klein, and Raymond D. Mountain

Phys. Rev. Lett. 75, 2522 (1995) - Published 25 September, 1995

Evidence for Orientational Glass States in Two Dimensions: Monolayers of $C_{2} {Cl}_{2} F_{4}$ and $C_{2} {ClF}_{5}$ Physisorbed on Graphite

St. Fassbender, C. Steimer, D. Arndt, and K. Knorr

Phys. Rev. Lett. 75, 2526 (1995) - Published 25 September, 1995

Monte Carlo Simulation of the Rapid Crystallization of Bismuth-Doped Silicon

Kenneth A. Jackson, George H. Gilmer, and Dmitri E. Temkin

Phys. Rev. Lett. 75, 2530 (1995) - Published 25 September, 1995

Ge-Induced Reversal of Surface Stress Anisotropy on Si(001)

Fang Wu and M. G. Lagally

Phys. Rev. Lett. 75, 2534 (1995) - Published 25 September, 1995

Mixed Ge-Si Dimer Growth at the Ge/Si(001)-( $2 \times 1$ ) Surface

L. Patthey, E. L. Bullock, T. Abukawa, S. Kono, and L. S. O. Johansson

Phys. Rev. Lett. 75, 2538 (1995) - Published 25 September, 1995

Vertically Self-Organized InAs Quantum Box Islands on GaAs(100)

Qianghua Xie, Anupam Madhukar, Ping Chen, and Nobuhiko P. Kobayashi

Phys. Rev. Lett. 75, 2542 (1995) - Published 25 September, 1995

Condensed Matter: Electronic Properties, Etc.

Momentum-Transfer-Resolved Electron Energy Loss Spectroscopy of ${BaBiO}_{3}$ : Anisotropic Dispersion of Threshold Excitation and Optically Forbidden Transition

Y. Y. Wang, V. P. Dravid, N. Bulut, P. D. Han, M. V. Klein, S. E. Schnatterly, and F. C. Zhang

Phys. Rev. Lett. 75, 2546 (1995) - Published 25 September, 1995

Anderson Transition, Scaling, and Level Statistics in the Presence of Spin Orbit Coupling

S. N. Evangelou

Phys. Rev. Lett. 75, 2550 (1995) - Published 25 September, 1995

Theory of Spin Beatings in the Faraday Rotation of Semiconductors

Th. Östreich, K. Schönhammer, and L. J. Sham

Phys. Rev. Lett. 75, 2554 (1995) - Published 25 September, 1995

Dynamic Localization in Anisotropic Coulomb Systems: Field Induced Crossover of the Exciton Dimension

T. Meier, F. Rossi, P. Thomas, and S. W. Koch

Phys. Rev. Lett. 75, 2558 (1995) - Published 25 September, 1995

Skyrme Crystal in a Two-Dimensional Electron Gas

L. Brey, H. A. Fertig, R. Côté, and A. H. MacDonald

Phys. Rev. Lett. 75, 2562 (1995) - Published 25 September, 1995

Effect of Inelastic Processes on Tunneling

Janez Bonča and S. A. Trugman

Phys. Rev. Lett. 75, 2566 (1995) - Published 25 September, 1995

Competition between Electron-Phonon Attraction and Weak Coulomb Repulsion

J. K. Freericks and Mark Jarrell

Phys. Rev. Lett. 75, 2570 (1995) - Published 25 September, 1995

“Chain Scenario” for Josephson Tunneling with $π$ Shift in YB $a_{2}$ C $u_{3}$ $O_{7}$

I. I. Mazin, A. A. Golubov, and A. D. Zaikin

Phys. Rev. Lett. 75, 2574 (1995) - Published 25 September, 1995

Subpicovolt Resolution Measurements of the Current-Voltage Characteristics of Twinned Crystalline ${{YBa}_{2} {Cu}_{3} O}_{7 - x}$ : New Evidence for a Vortex-Glass Phase

M. Charalambous, R. H. Koch, T. Masselink, T. Doany, C. Feild, and F. Holtzberg

Phys. Rev. Lett. 75, 2578 (1995) - Published 25 September, 1995

First-Order Vortex Lattice Melting and Magnetization of ${YBa}_{2} {Cu}_{3} O_{7 - δ}$

R. Šášik and D. Stroud

Phys. Rev. Lett. 75, 2582 (1995) - Published 25 September, 1995

Absence of the Transition into Abrikosov Vortex State of Two-Dimensional Type-II Superconductor with Weak Pinning

A. V. Nikulov, D. Yu. Remisov, and V. A. Oboznov

Phys. Rev. Lett. 75, 2586 (1995) - Published 25 September, 1995

Spatial Dependence of Exchange Interaction in Heisenberg Antiferromagnet ${Zn}_{1 - x} {Mn}_{x} Te$

Qun Shen, H. Luo, and J. K. Furdyna

Phys. Rev. Lett. 75, 2590 (1995) - Published 25 September, 1995

On-Off Intermittency in Spin-Wave Instabilities

F. Rödelsperger, A. Čenys, and H. Benner

Phys. Rev. Lett. 75, 2594 (1995) - Published 25 September, 1995

Ultrafast Coherent Control and Destruction of Excitons in Quantum Wells

A. P. Heberle, J. J. Baumberg, and K. Köhler

Phys. Rev. Lett. 75, 2598 (1995) - Published 25 September, 1995

Comparison of Multibubble and Single-Bubble Sonoluminescence Spectra

Thomas J. Matula, Ronald A. Roy, Pierre D. Mourad, William B. McNamara III, and Kenneth S. Suslick

Phys. Rev. Lett. 75, 2602 (1995) - Published 25 September, 1995

Low-Energy (5–120 eV) Electron-Stimulated Dissociation of Amorphous $D_{2}$ O Ice: D( $^{2} S$ ), O( $^{3} P_{2, 1, 0}$ ), and O( $^{1} D_{2}$ ) Yields and Velocity Distributions

Greg A. Kimmel and Thomas M. Orlando

Phys. Rev. Lett. 75, 2606 (1995) - Published 25 September, 1995

Cross-Disciplinary Physics

Nonlinear Bubble Dynamics in a Slowly Driven Foam

A. D. Gopal and D. J. Durian

Phys. Rev. Lett. 75, 2610 (1995) - Published 25 September, 1995

Analytical Study of Time Series Generation by Feed-Forward Networks

I. Kanter, D. A. Kessler, A. Priel, and E. Eisenstein

Phys. Rev. Lett. 75, 2614 (1995) - Published 25 September, 1995

Cooperative Molecular Motors

Frank Jülicher and Jacques Prost

Phys. Rev. Lett. 75, 2618 (1995) - Published 25 September, 1995

Stationary Striations Developed in the Ionospheric Modification

A. V. Gurevich, K. P. Zybin, and A. V. Lukyanov

Phys. Rev. Lett. 75, 2622 (1995) - Published 25 September, 1995

COMMENTS

Comment on “Superinstantons and the Reliability of Perturbation Theory in Non-Abelian Models”

François David

Phys. Rev. Lett. 75, 2626 (1995) - Published 25 September, 1995

Patrascioiu and Seiler Reply:

Adrian Patrascioiu and Erhard Seiler

Phys. Rev. Lett. 75, 2627 (1995) - Published 25 September, 1995

Comment on “Observation of Oscillatory Magnetic Order in the Antiferromagnetic Superconductor HoN $i_{2}$ B $a_{2}$ C”

T. Vogt, A. Goldman, B. Sternlieb, and C. Stassis

Phys. Rev. Lett. 75, 2628 (1995) - Published 25 September, 1995

Grigereit et al. Reply:

T. E. Grigereit, J. W. Lynn, Q. Huang, A. Santoro, R. J. Cava, J. J Krajewski, and W. F. Peck, Jr.

Phys. Rev. Lett. 75, 2629 (1995) - Published 25 September, 1995

ERRATA

Unique One-Loop Effective Actoin for the Six-Dimensional Einstein-Hilbert Action

H. T. Cho and R. Kantowski

Phys. Rev. Lett. 75, 2630 (1995) - Published 25 September, 1995

New Model for Dissipation in Quantum Mechanics

A. H. Castro Neto and A. O. Caldeira

Phys. Rev. Lett. 75, 2631 (1995) - Published 25 September, 1995

Low-Energy Electrons and Their Dynamical Correlation with Recoil Ions for Single Ionization of Helium by Fast, Heavy-Ion Impact

R. Moshammer, J. Ullrich, M. Unverzagt, W. Schmidt, P. Jardin, R. E. Olson, R. Mann, R. Dörner, V. Mergel, U. Buck, and H. Schmidt-Böcking

Phys. Rev. Lett. 75, 2631 (1995) - Published 25 September, 1995

Can the Nambu-Goldstone Boson Live on the Light Front?

Yoonbai Kim, Sho Tsujimaru, and Koichi Yamawaki

Phys. Rev. Lett. 75, 2632 (1995) - Published 25 September, 1995