Volume 78, Issue 5

3 February 1997

Browse Issues:

LETTERS

General Physics

Experimental Separation of Geometric and Dynamical Phases Using Neutron Interferometry

A. G. Wagh, V. C. Rakhecha, J. Summhammer, G. Badurek, H. Weinfurter, B. E. Allman, H. Kaiser, K. Hamacher, D. L. Jacobson, and S. A. Werner

Phys. Rev. Lett. 78, 755 (1997) - Published 3 February, 1997

Rotation Sensing with an Atom Interferometer

Alan Lenef, Troy D. Hammond, Edward T. Smith, Michael S. Chapman, Richard A. Rubenstein, and David E. Pritchard

Phys. Rev. Lett. 78, 760 (1997) - Published 3 February, 1997

Temperature-Dependent Damping and Frequency Shifts in Collective Excitations of a Dilute Bose-Einstein Condensate

D. S. Jin, M. R. Matthews, J. R. Ensher, C. E. Wieman, and E. A. Cornell

Phys. Rev. Lett. 78, 764 (1997) - Published 3 February, 1997

Initial Stages of Bose-Einstein Condensation

H. T. C. Stoof

Phys. Rev. Lett. 78, 768 (1997) - Published 3 February, 1997

Dynamical Approach to Temperature

Hans Henrik Rugh

Phys. Rev. Lett. 78, 772 (1997) - Published 3 February, 1997

Coherence Resonance in a Noise-Driven Excitable System

Arkady S. Pikovsky and Jürgen Kurths

Phys. Rev. Lett. 78, 775 (1997) - Published 3 February, 1997

Drift of Interacting Asymmetrical Spiral Waves

M. Ruiz-Villarreal, M. Gómez-Gesteira, and V. Pérez-Villar

Phys. Rev. Lett. 78, 779 (1997) - Published 3 February, 1997

Gravitation and Astrophysics

Very Simple Proof of the Causal Propagation of Gravity in Vacuum

Miguel Á. G. Bonilla and José M. M. Senovilla

Phys. Rev. Lett. 78, 783 (1997) - Published 3 February, 1997

Origin of Magnetic Fields in the Universe due to Nonminimal Gravitational-Electromagnetic Coupling

Reuven Opher and Ubirajara F. Wichoski

Phys. Rev. Lett. 78, 787 (1997) - Published 3 February, 1997

Peaks above the Harrison-Zel'dovich Spectrum due to the Quark-Gluon to Hadron Transition

Christoph Schmid, Dominik J. Schwarz, and Peter Widerin

Phys. Rev. Lett. 78, 791 (1997) - Published 3 February, 1997

Elementary Particles and Fields

Charge Fractionization in $N = 2$ Supersymmetric QCD

Frank Ferrari

Phys. Rev. Lett. 78, 795 (1997) - Published 3 February, 1997

Systematic Approach to Confinement in $N = 1$ Supersymmetric Gauge Theories

Csaba Csáki, Martin Schmaltz, and Witold Skiba

Phys. Rev. Lett. 78, 799 (1997) - Published 3 February, 1997

Probing the QCD Pomeron in $e^{+} e^{-}$ Collisions

S. J. Brodsky, F. Hautmann, and D. E. Soper

Phys. Rev. Lett. 78, 803 (1997) - Published 3 February, 1997

Role of the Anomalous $U {(1)}_{A}$ for the Solution of the Doublet–Triplet Splitting Problem via the Pseudo-Goldstone Mechanism

Gia Dvali and Stefan Pokorski

Phys. Rev. Lett. 78, 807 (1997) - Published 3 February, 1997

Electron-Positron Annihilation into Four Jets at Next-to-Leading Order in $α_{s}$

Adrian Signer and Lance Dixon

Phys. Rev. Lett. 78, 811 (1997) - Published 3 February, 1997

Measurement of the Proton and Deuteron Spin Structure Function $g_{1}$ in the Resonance Region

K. Abe et al. (E143 Collaboration)

Phys. Rev. Lett. 78, 815 (1997) - Published 3 February, 1997

Nuclear Physics

Magnetic Moments of Odd-A Sb Isotopes to $^{133}$ Sb: Significant Evidence for Mesonic Exchange Current Contributions and on Core Collective g Factors

N. J. Stone, D. Doran, M. Lindroos, J. Rikovska, M. Veskovic, G. White, D. A. Williams, B. Fogelberg, L. Jacobsson, I. S. Towner, and K. Heyde

Phys. Rev. Lett. 78, 820 (1997) - Published 3 February, 1997

Stable Coulomb Bubbles?

L. G. Moretto, K. Tso, and G. J. Wozniak

Phys. Rev. Lett. 78, 824 (1997) - Published 3 February, 1997

Direct Experimental Evidence of Nonequilibrium Energy Sharing in Dissipative Collisions

G. Casini, P. R. Maurenzig, A. Olmi, M. Bini, S. Calamai, F. Meucci, G. Pasquali, G. Poggi, A. A. Stefanini, A. Gobbi, and K. D. Hildenbrand

Phys. Rev. Lett. 78, 828 (1997) - Published 3 February, 1997

Atomic, Molecular, and Optical Physics

Quantum Interference in Probe Absorption: Narrow Resonances, Transparency, and Gain without Population Inversion

Peng Zhou and S. Swain

Phys. Rev. Lett. 78, 832 (1997) - Published 3 February, 1997

Phase Waves in Mode-Locked Superfluorescent Lasers

P. D. Drummond, J. D. Harvey, J. M. Dudley, D. B. Hirst, and S. J. Carter

Phys. Rev. Lett. 78, 836 (1997) - Published 3 February, 1997

Direct Detection Feedback for Preserving Quantum Coherence in an Open Cavity

D. B. Horoshko and S. Ya. Kilin

Phys. Rev. Lett. 78, 840 (1997) - Published 3 February, 1997

Nonlinear Dynamics, Fluid Dynamics, Classical Optics, Etc.

Detecting and Analyzing Nonstationarity in a Time Series Using Nonlinear Cross Predictions

Thomas Schreiber

Phys. Rev. Lett. 78, 843 (1997) - Published 3 February, 1997

Direction of Optical Energy Flow in a Transverse Magnetic Field

G. L. J. A. Rikken and B. A. van Tiggelen

Phys. Rev. Lett. 78, 847 (1997) - Published 3 February, 1997

Dual Optical Tunneling Times in Frustrated Total Internal Reflection

Ph. Balcou and L. Dutriaux

Phys. Rev. Lett. 78, 851 (1997) - Published 3 February, 1997

Experimental Observation of the Continuous Pulse-Train Soliton Solution to the Maxwell-Bloch Equations

John L. Shultz and Gregory J. Salamo

Phys. Rev. Lett. 78, 855 (1997) - Published 3 February, 1997

Faraday's Instability for Viscous Fluids

Enrique Cerda and Enrique Tirapegui

Phys. Rev. Lett. 78, 859 (1997) - Published 3 February, 1997

Description of a Turbulent Cascade by a Fokker-Planck Equation

R. Friedrich and J. Peinke

Phys. Rev. Lett. 78, 863 (1997) - Published 3 February, 1997

Fractal Model for Coarse-Grained Nonlinear Partial Differential Equations

Alberto Scotti and Charles Meneveau

Phys. Rev. Lett. 78, 867 (1997) - Published 3 February, 1997

Plasma and Beam Physics

Microwave Instability at Transition Crossing: Experiments and a Proton-Klystron Model

Ken Takayama, Dai Arakawa, Junichi Kishiro, Kiyomi Koba, and Masahito Yoshii

Phys. Rev. Lett. 78, 871 (1997) - Published 3 February, 1997

Steady-State Confinement of Non-neutral Plasmas by Rotating Electric Fields

X.-P. Huang, F. Anderegg, E. M. Hollmann, C. F. Driscoll, and T. M. O'Neil

Phys. Rev. Lett. 78, 875 (1997) - Published 3 February, 1997

Relativistic Channeling of a Picosecond Laser Pulse in a Near-Critical Preformed Plasma

M. Borghesi, A. J. MacKinnon, L. Barringer, R. Gaillard, L. A. Gizzi, C. Meyer, O. Willi, A. Pukhov, and J. Meyer-ter-Vehn

Phys. Rev. Lett. 78, 879 (1997) - Published 3 February, 1997

Multifrequency Doppler Radar Observations of Electron Gyroharmonic Effects during Electromagnetic Pumping of the Ionosphere

S. M. Grach, G. P. Komrakov, M. A. Yurishchev, B. Thidé, T. B. Leyser, and T. Carozzi

Phys. Rev. Lett. 78, 883 (1997) - Published 3 February, 1997

Condensed Matter: Structure, Etc.

Structure and Hyperfine Parameters of $E_{1}^{'}$ Centers in $α$ -Quartz and in Vitreous ${SiO}_{2}$

Mauro Boero, Alfredo Pasquarello, Johannes Sarnthein, and Roberto Car

Phys. Rev. Lett. 78, 887 (1997) - Published 3 February, 1997

Band Mobility of Photoexcited Electrons in ${Bi}_{12} {SiO}_{20}$

Ivan Biaggio, Robert W. Hellwarth, and Jouni P. Partanen

Phys. Rev. Lett. 78, 891 (1997) - Published 3 February, 1997

Equation of State for DNA Liquid Crystals: Fluctuation Enhanced Electrostatic Double Layer Repulsion

H. H. Strey, V. A. Parsegian, and R. Podgornik

Phys. Rev. Lett. 78, 895 (1997) - Published 3 February, 1997

Rarely Observed Phase Transitions in a Novel Lyotropic Liquid Crystal System

J. Katsaras, R. L. Donaberger, I. P. Swainson, D. C. Tennant, Z. Tun, R. R. Vold, and R. S. Prosser

Phys. Rev. Lett. 78, 899 (1997) - Published 3 February, 1997

Upper Critical Dimension of the Kardar-Parisi-Zhang Equation

Michael Lässig and Harald Kinzelbach

Phys. Rev. Lett. 78, 903 (1997) - Published 3 February, 1997

Direct Observation of a $β$ -SiC(100)- $c (4 \times 2)$ Surface Reconstruction

P. Soukiassian, F. Semond, L. Douillard, A. Mayne, G. Dujardin, L. Pizzagalli, and C. Joachim

Phys. Rev. Lett. 78, 907 (1997) - Published 3 February, 1997

Growth Anisotropy and Pattern Formation in Metal Epitaxy

Louis C. Jorritsma, Matthieu Bijnagte, Georg Rosenfeld, and Bene Poelsema

Phys. Rev. Lett. 78, 911 (1997) - Published 3 February, 1997

Condensed Matter: Electronic Properties, Etc.

Direct Pseudopotential Calculation of Exciton Coulomb and Exchange Energies in Semiconductor Quantum Dots

Alberto Franceschetti and Alex Zunger

Phys. Rev. Lett. 78, 915 (1997) - Published 3 February, 1997

Aharonov-Bohm Effect on Charge Density Wave (CDW) Moving through Columnar Defects in NbS $e_{3}$

Yu. I. Latyshev, O. Laborde, P. Monceau, and S. Klaumünzer

Phys. Rev. Lett. 78, 919 (1997) - Published 3 February, 1997

Breit-Wigner Width for Two Interacting Particles in a One-Dimensional Random Potential

Ph. Jacquod, D. L. Shepelyansky, and O. P. Sushkov

Phys. Rev. Lett. 78, 923 (1997) - Published 3 February, 1997

Negative Magnetoresistance in Homogeneous Amorphous Superconducting Pb Wires

P. Xiong, A. V. Herzog, and R. C. Dynes

Phys. Rev. Lett. 78, 927 (1997) - Published 3 February, 1997

Decay Lengths for Diffusive Transport Activated by Andreev Reflections in Al/n-GaAs/Al Superconductor-Semiconductor-Superconductor Junctions

J. Kutchinsky, R. Taboryski, T. Clausen, C. B. Sørensen, A. Kristensen, P. E. Lindelof, J. Bindslev Hansen, C. Schelde Jacobsen, and J. L. Skov

Phys. Rev. Lett. 78, 931 (1997) - Published 3 February, 1997

Static Critical Behavior of the Spin-Freezing Transition in the Geometrically Frustrated Pyrochlore Antiferromagnet $Y_{2} {Mo}_{2} O_{7}$

M. J. P. Gingras, C. V. Stager, N. P. Raju, B. D. Gaulin, and J. E. Greedan

Phys. Rev. Lett. 78, 947 (1997) - Published 3 February, 1997

Hall-Effect Sign Anomaly and Small-Polaron Conduction in $({La}_{1 - x} {Gd}_{x})_{0.67} {Ca}_{0.33} {MnO}_{3}$

M. Jaime, H. T. Hardner, M. B. Salamon, M. Rubinstein, P. Dorsey, and D. Emin

Phys. Rev. Lett. 78, 951 (1997) - Published 3 February, 1997

Strong Oxygen-Mass Dependence of the Thermal-Expansion Coefficient in the Manganites $({La}_{1 - x} {Ca}_{x})_{1 - y} {Mn}_{1 - y} O_{3}$

Guo-meng Zhao, M. B. Hunt, and H. Keller

Phys. Rev. Lett. 78, 955 (1997) - Published 3 February, 1997

Cross-Disciplinary Physics

Electrohydrodynamic Patterns in Charged Colloidal Solutions

H. Isambert, A. Ajdari, J.-L. Viovy, and J. Prost

Phys. Rev. Lett. 78, 971 (1997) - Published 3 February, 1997