Volume 79, Issue 1

7 July 1997

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LETTERS

General Physics

Generation of Einstein-Podolsky-Rosen Pairs of Atoms

E. Hagley, X. Maître, G. Nogues, C. Wunderlich, M. Brune, J. M. Raimond, and S. Haroche

Phys. Rev. Lett. 79, 1 (1997) - Published 7 July, 1997

Cold, Dilute, Trapped Bosons as an Open Quantum System

James Anglin

Phys. Rev. Lett. 79, 6 (1997) - Published 7 July, 1997

Quantum Ratchets

Peter Reimann, Milena Grifoni, and Peter Hänggi

Phys. Rev. Lett. 79, 10 (1997) - Published 7 July, 1997

Gravitation and Astrophysics

Conformal Invariance and Cosmic Background Radiation

Ignatios Antoniadis, Pawel O. Mazur, and Emil Mottola

Phys. Rev. Lett. 79, 14 (1997) - Published 7 July, 1997

Elementary Particles and Fields

A Model of Direct Gauge Mediation of Supersymmetry Breaking

Hitoshi Murayama

Phys. Rev. Lett. 79, 18 (1997) - Published 7 July, 1997

Generalized Polarizabilities and the Chiral Structure of the Nucleon

Thomas R. Hemmert, Barry R. Holstein, Germar Knöchlein, and Stefan Scherer

Phys. Rev. Lett. 79, 22 (1997) - Published 7 July, 1997

Precision Determination of the Neutron Spin Structure Function $g_{1}^{n}$

K. Abe et al. (E154 Collaboration)

Phys. Rev. Lett. 79, 26 (1997) - Published 7 July, 1997

Nuclear Physics

Universal Anharmonic Vibrator Description of Quasiband Structures in Collective Even-Even and Odd- $A$ Nuclei

D. Bucurescu and N. Mǎrginean

Phys. Rev. Lett. 79, 31 (1997) - Published 7 July, 1997

Atomic, Molecular, and Optical Physics

Reappraisal of the Existence of Shape Resonances in the Series $C_{2} H_{2}$ , $C_{2} H_{4}$ , and $C_{2} H_{6}$

B. Kempgens, H. M. Köppe, A. Kivimäki, M. Neeb, K. Maier, U. Hergenhahn, and A. M. Bradshaw

Phys. Rev. Lett. 79, 35 (1997) - Published 7 July, 1997

Positron Annihilation with Inner-Shell Electrons in Noble Gas Atoms

Koji Iwata, G. F. Gribakin, R. G. Greaves, and C. M. Surko

Phys. Rev. Lett. 79, 39 (1997) - Published 7 July, 1997

Realization of a Paradigm for Quantum Measurements: The Squeezed Light Beam Splitter

Robert Bruckmeier, Hauke Hansen, Stephan Schiller, and Jürgen Mlynek

Phys. Rev. Lett. 79, 43 (1997) - Published 7 July, 1997

Nonlinear Dynamics, Fluid Dynamics, Classical Optics, Etc.

Attractor-Repeller Collision and Eyelet Intermittency at the Transition to Phase Synchronization

Arkady Pikovsky, Grigory Osipov, Michael Rosenblum, Michael Zaks, and Jürgen Kurths

Phys. Rev. Lett. 79, 47 (1997) - Published 7 July, 1997

Synchronizing Spatiotemporal Chaos of Partial Differential Equations

Ljupco Kocarev, Zarko Tasev, and Ulrich Parlitz

Phys. Rev. Lett. 79, 51 (1997) - Published 7 July, 1997

Quantization of the Stochastic Pump Model of Arnold Diffusion

David M. Leitner and Peter G. Wolynes

Phys. Rev. Lett. 79, 55 (1997) - Published 7 July, 1997

How Long Do Numerical Chaotic Solutions Remain Valid?

Tim Sauer, Celso Grebogi, and James A. Yorke

Phys. Rev. Lett. 79, 59 (1997) - Published 7 July, 1997

Control of High-Dimensional Chaos in Systems with Symmetry

M. Löcher and E. R. Hunt

Phys. Rev. Lett. 79, 63 (1997) - Published 7 July, 1997

Self-Excitation of Space Charge Waves

Sergei F. Lyuksyutov, Preben Buchhave, and Mikhail V. Vasnetsov

Phys. Rev. Lett. 79, 67 (1997) - Published 7 July, 1997

Chaos and Structures in Rotating Convection at Finite Prandtl Number

Y. Ponty, T. Passot, and P. L. Sulem

Phys. Rev. Lett. 79, 71 (1997) - Published 7 July, 1997

Wavelet Based Multifractal Analysis of Rough Surfaces: Application to Cloud Models and Satellite Data

J. Arrault, A. Arnéodo, A. Davis, and A. Marshak

Phys. Rev. Lett. 79, 75 (1997) - Published 7 July, 1997

Plasma and Beam Physics

First Observations of a “Fast Beam-Ion Instability”

J. Byrd, A. Chao, S. Heifets, M. Minty, T. O. Raubenheimer, J. Seeman, G. Stupakov, J. Thomson, and F. Zimmermann

Phys. Rev. Lett. 79, 79 (1997) - Published 7 July, 1997

Hybrid Particle-in-Cell Simulations of Stimulated Brillouin Scattering Including Ion-Ion Collisions

P. W. Rambo, S. C. Wilks, and W. L. Kruer

Phys. Rev. Lett. 79, 83 (1997) - Published 7 July, 1997

Condensed Matter: Structure, Etc.

``Lozenge'' Contour Plots in Scattering from Polymer Networks

D. J. Read and T. C. B. McLeish

Phys. Rev. Lett. 79, 87 (1997) - Published 7 July, 1997

Is There an Ideal Quenching Rate for an Ideal Glass?

Philippe Jund, Didier Caprion, and Rémi Jullien

Phys. Rev. Lett. 79, 91 (1997) - Published 7 July, 1997

Statistical Theory of Diffusion-Limited Growth in Two Dimensions

Yoshinori Hayakawa and Shinichi Sato

Phys. Rev. Lett. 79, 95 (1997) - Published 7 July, 1997

Experimental Determination of the Melting Point and Heat Capacity for a Free Cluster of 139 Sodium Atoms

Martin Schmidt, Robert Kusche, Werner Kronmüller, Bernd von Issendorff, and Hellmut Haberland

Phys. Rev. Lett. 79, 99 (1997) - Published 7 July, 1997

Translation-Rotation Paradox for Diffusion in Glass-Forming Polymers: The Role of the Temperature Dependence of the Relaxation Time Distribution

David B. Hall, Ali Dhinojwala, and John M. Torkelson

Phys. Rev. Lett. 79, 103 (1997) - Published 7 July, 1997

Quantum Diffusion of the Positive Muon in Superconducting Tantalum

R. Kadono, R. F. Kiefl, J. A. Chakhalian, S. R. Dunsiger, B. Hitti, W. A. MacFarlane, J. Major, L. Schimmele, M. Matsumoto, and Y. Ohashi

Phys. Rev. Lett. 79, 107 (1997) - Published 7 July, 1997

Thermally Assisted Tunneling of the B-H Complex in Silicon

José C. Noya, Carlos P. Herrero, and Rafael Ramírez

Phys. Rev. Lett. 79, 111 (1997) - Published 7 July, 1997

New Surface Relaxation Mechanism for Liquid ${}^{3}H e$ in ${}^{4}H e$

A. S. van Steenbergen, S. A. J. Wiegers, J. A. A. J. Perenboom, and J. C. Maan

Phys. Rev. Lett. 79, 115 (1997) - Published 7 July, 1997

Condensed Matter: Electronic Properties, Etc.

Symmetry of the Electronic States of Si Nanocrystals: An Experimental Study

D. Kovalev, M. Ben-Chorin, J. Diener, B. Averboukh, G. Polisski, and F. Koch

Phys. Rev. Lett. 79, 119 (1997) - Published 7 July, 1997

Wave Function Scarring Effects in Open Stadium Shaped Quantum Dots

R. Akis, D. K. Ferry, and J. P. Bird

Phys. Rev. Lett. 79, 123 (1997) - Published 7 July, 1997

Deformation of Quantum Dots in the Coulomb Blockade Regime

G. Hackenbroich, W. D. Heiss, and H. A. Weidenmüller

Phys. Rev. Lett. 79, 127 (1997) - Published 7 July, 1997

Magnetic Scaling in Superconductors

Ian D. Lawrie

Phys. Rev. Lett. 79, 131 (1997) - Published 7 July, 1997

Nonlocal Effects on the Magnetic Penetration Depth in d-Wave Superconductors

Ioan Kosztin and Anthony J. Leggett

Phys. Rev. Lett. 79, 135 (1997) - Published 7 July, 1997

Steric Repulsion and van der Waals Attraction between Flux Lines in Disordered High $T_{c}$ Superconductors

Sutapa Mukherji and Thomas Nattermann

Phys. Rev. Lett. 79, 139 (1997) - Published 7 July, 1997

Measurement of an Anisotropic Energy Gap in Single Plane ${{Bi}_{2} Sr}_{2 - x} {La}_{x} {CuO}_{6 + δ}$

J. M. Harris, P. J. White, Z.-X. Shen, H. Ikeda, R. Yoshizaki, H. Eisaki, S. Uchida, W. D. Si, J. W. Xiong, Z.-X. Zhao, and D. S. Dessau

Phys. Rev. Lett. 79, 143 (1997) - Published 7 July, 1997

Low-Temperature Scaling Regime of Random Ferromagnetic-Antiferromagnetic Spin Chains

Beat Frischmuth and Manfred Sigrist

Phys. Rev. Lett. 79, 147 (1997) - Published 7 July, 1997

Quasi-1D $S = 1 / 2$ Antiferromagnet ${Cs}_{2} {CuCl}_{4}$ in a Magnetic Field

R. Coldea, D. A. Tennant, R. A. Cowley, D. F. McMorrow, B. Dorner, and Z. Tylczynski

Phys. Rev. Lett. 79, 151 (1997) - Published 7 July, 1997

Ab Initio Calculations of the Curie Temperature of Complex Permanent-Magnet Materials

R. F. Sabiryanov and S. S. Jaswal

Phys. Rev. Lett. 79, 155 (1997) - Published 7 July, 1997

Mechanism for the Non-Fermi-Liquid Behavior in ${CeCu}_{6 - x} {Au}_{x}$

A. Rosch, A. Schröder, O. Stockert, and H. v. Löhneysen

Phys. Rev. Lett. 79, 159 (1997) - Published 7 July, 1997

Symmetry and Dimension of the Magnon Dispersion of Inorganic Spin-Peierls Systems

Götz S. Uhrig

Phys. Rev. Lett. 79, 163 (1997) - Published 7 July, 1997

Mean Field and Corrections for the Euclidean Minimum Matching Problem

Jacques H. Boutet de Monvel and Olivier C. Martin

Phys. Rev. Lett. 79, 167 (1997) - Published 7 July, 1997

${}^{17}O$ NMR Study of Undoped and Lightly Hole Doped ${CuO}_{2}$ Planes

K. R. Thurber, A. W. Hunt, T. Imai, F. C. Chou, and Y. S. Lee

Phys. Rev. Lett. 79, 171 (1997) - Published 7 July, 1997

Cross-Disciplinary Physics

Hydrodynamic Interactions May Enhance the Self-Diffusion of Colloidal Particles

K. Zahn, J. M. Méndez-Alcaraz, and G. Maret

Phys. Rev. Lett. 79, 175 (1997) - Published 7 July, 1997

COMMENTS

Comment on ``An Explanation of the Density Maximum in Water''

E. Velasco, L. Mederos, and G. Navascués

Phys. Rev. Lett. 79, 179 (1997) - Published 7 July, 1997

Cho et al. Reply:

C. H. Cho, Surjit Singh, and G. W. Robinson

Phys. Rev. Lett. 79, 180 (1997) - Published 7 July, 1997