Volume 81, Issue 5

3 August 1998

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LETTERS

General Physics

Collapse and Bose-Einstein Condensation in a Trapped Bose Gas with Negative Scattering Length

Yu. Kagan, A. E. Muryshev, and G. V. Shlyapnikov

Phys. Rev. Lett. 81, 933 (1998) - Published 3 August, 1998

Atomic Scattering in the Presence of an External Confinement and a Gas of Impenetrable Bosons

M. Olshanii

Phys. Rev. Lett. 81, 938 (1998) - Published 3 August, 1998

Elementary Particles and Fields

Direct Measurement of Parity Violation in the Coupling of $Z^{0}$ Bosons to $b$ Quarks Using a Mass Tag and Momentum-Weighted Track Charge

K. Abe et al. (SLD Collaboration)

Phys. Rev. Lett. 81, 942 (1998) - Published 3 August, 1998

Nuclear Physics

Observation of $^{10} Be$ Emission in the Cold Ternary Spontaneous Fission of $^{252} Cf$

A. V. Ramayya, J. K. Hwang, J. H. Hamilton, A. Sandulescu, A. Florescu, G. M. Ter-Akopian, A. V. Daniel, Yu. Ts. Oganessian, G. S. Popeko, W. Greiner, and J. D. Cole (GANDS95 Collaboration)

Phys. Rev. Lett. 81, 947 (1998) - Published 3 August, 1998

Atomic, Molecular, and Optical Physics

Prospects for Bose-Einstein Condensation in Cesium

S. J. J. M. F. Kokkelmans, B. J. Verhaar, and K. Gibble

Phys. Rev. Lett. 81, 951 (1998) - Published 3 August, 1998

Analytic Solution for Strong-Field Quantum Control of Atomic Wave Packets

Luís E. E. de Araujo, Ian A. Walmsley, and C. R. Stroud, Jr.

Phys. Rev. Lett. 81, 955 (1998) - Published 3 August, 1998

Asymptotic Molecular States and the Influence of Magnetic Fields

M. Elbs, T. Laue, H. Knöckel, and E. Tiemann

Phys. Rev. Lett. 81, 959 (1998) - Published 3 August, 1998

Singular Behavior in Electron-Atom Scattering at Small Momentum Transfer

Z. Felfli, A. Z. Msezane, and D. Bessis

Phys. Rev. Lett. 81, 963 (1998) - Published 3 August, 1998

Insertion of Xe and Kr Atoms into $C_{60}$ and $C_{70}$ Fullerenes and the Formation of Dimers

Tsutomu Ohtsuki, Kaoru Ohno, Keiichiro Shiga, Yoshiyuki Kawazoe, Yutaka Maruyama, and Kazuyoshi Masumoto

Phys. Rev. Lett. 81, 967 (1998) - Published 3 August, 1998

Measurement of the Earth's Gravity Gradient with an Atom Interferometer-Based Gravity Gradiometer

M. J. Snadden, J. M. McGuirk, P. Bouyer, K. G. Haritos, and M. A. Kasevich

Phys. Rev. Lett. 81, 971 (1998) - Published 3 August, 1998

Nonlinear Dynamics, Fluid Dynamics, Classical Optics, etc.

Slowly Passing through Resonance Strongly Depends on Noise

J. C. Celet, D. Dangoisse, P. Glorieux, G. Lythe, and T. Erneux

Phys. Rev. Lett. 81, 975 (1998) - Published 3 August, 1998

Kinetics of Localized Pattern Formation in Optical Systems

M. Tlidi, Paul Mandel, and R. Lefever

Phys. Rev. Lett. 81, 979 (1998) - Published 3 August, 1998

Do Surface Acoustic Solitons Exist?

C. Eckl, A. P. Mayer, and A. S. Kovalev

Phys. Rev. Lett. 81, 983 (1998) - Published 3 August, 1998

Enhanced Heat Transport in Turbulent Convection over a Rough Surface

Y.-B. Du and P. Tong

Phys. Rev. Lett. 81, 987 (1998) - Published 3 August, 1998

Plasma and Beam Physics

Nonlinear Stability Theorem for High-Intensity Charged Particle Beams

Ronald C. Davidson

Phys. Rev. Lett. 81, 991 (1998) - Published 3 August, 1998

Observation of Laser Wakefield Acceleration of Electrons

F. Amiranoff, S. Baton, D. Bernard, B. Cros, D. Descamps, F. Dorchies, F. Jacquet, V. Malka, J. R. Marquès, G. Matthieussent, P. Miné, A. Modena, P. Mora, J. Morillo, and Z. Najmudin

Phys. Rev. Lett. 81, 995 (1998) - Published 3 August, 1998

Plasma Formation on the Front and Rear of Plastic Targets due to High-Intensity Laser-Generated Fast Electrons

M. Tatarakis, J. R. Davies, P. Lee, P. A. Norreys, N. G. Kassapakis, F. N. Beg, A. R. Bell, M. G. Haines, and A. E. Dangor

Phys. Rev. Lett. 81, 999 (1998) - Published 3 August, 1998

Fast Electron Deposition in Laser Shock Compressed Plastic Targets

T. A. Hall, S. Ellwi, D. Batani, A. Bernardinello, V. Masella, M. Koenig, A. Benuzzi, J. Krishnan, F. Pisani, A. Djaoui, P. Norreys, D. Neely, S. Rose, M. H. Key, and P. Fews

Phys. Rev. Lett. 81, 1003 (1998) - Published 3 August, 1998

Ultrahigh Densities and Volume Recombination inside the Separatrix of the Alcator C-Mod Tokamak

B. Lipschultz, J. L. Terry, C. Boswell, A. Hubbard, B. LaBombard, and D. A. Pappas

Phys. Rev. Lett. 81, 1007 (1998) - Published 3 August, 1998

Condensed Matter: Structure, etc.

Effect of Non-Pairwise-Additive Interactions on Bundles of Rodlike Polyelectrolytes

B.-Y. Ha and Andrea J. Liu

Phys. Rev. Lett. 81, 1011 (1998) - Published 3 August, 1998

Structural Characterization of Various Chiral Smectic- $C$ Phases by Resonant X-Ray Scattering

P. Mach, R. Pindak, A.-M. Levelut, P. Barois, H. T. Nguyen, C. C. Huang, and L. Furenlid

Phys. Rev. Lett. 81, 1015 (1998) - Published 3 August, 1998

New Disorder Induced Phase Transitions of Classical Rare Gases in Porous Vycor Glass

D. W. Brown, P. E. Sokol, and S. N. Ehrlich

Phys. Rev. Lett. 81, 1019 (1998) - Published 3 August, 1998

Directed Polymers on a Factorized Disorder Landscape

Paolo De Los Rios and Yi-Cheng Zhang

Phys. Rev. Lett. 81, 1023 (1998) - Published 3 August, 1998

Inverse versus Normal NiAs Structures as High-Pressure Phases of FeO and MnO

Z. Fang, K. Terakura, H. Sawada, T. Miyazaki, and I. Solovyev

Phys. Rev. Lett. 81, 1027 (1998) - Published 3 August, 1998

Structural Relaxation Monitored by Instantaneous Shear Modulus

Niels Boye Olsen, Jeppe C. Dyre, and Tage Christensen

Phys. Rev. Lett. 81, 1031 (1998) - Published 3 August, 1998

Adatom Formation on the $Ni (110)$ Surface

W. Silvestri, A. P. Graham, and J. P. Toennies

Phys. Rev. Lett. 81, 1034 (1998) - Published 3 August, 1998

The Hematite ( $α$ - ${Fe}_{2} O_{3}$ ) (0001) Surface: Evidence for Domains of Distinct Chemistry

X.-G. Wang, W. Weiss, Sh. K. Shaikhutdinov, M. Ritter, M. Petersen, F. Wagner, R. Schlögl, and M. Scheffler

Phys. Rev. Lett. 81, 1038 (1998) - Published 3 August, 1998

Reduction of Enthalpy of Fusion and Anomalies during Phase Transitions in Finely Divided Water

A. Bogdan, M. Kulmala, and N. Avramenko

Phys. Rev. Lett. 81, 1042 (1998) - Published 3 August, 1998

Imaging the Elastic Nanostructure of Ge Islands by Ultrasonic Force Microscopy

Oleg V. Kolosov, Martin R. Castell, Chris D. Marsh, G. Andrew D. Briggs, T. I. Kamins, and R. Stanley Williams

Phys. Rev. Lett. 81, 1046 (1998) - Published 3 August, 1998

Thermal Adatoms on Si(001)

R. M. Tromp and M. Mankos

Phys. Rev. Lett. 81, 1050 (1998) - Published 3 August, 1998

Condensed Matter: Electronic Properties, etc.

Short Range Order and the Nature of Defects and Traps in Amorphous Silicon Oxynitride Governed by the Mott Rule

V. A. Gritsenko, J. B. Xu, R. W. M. Kwok, Y. H. Ng, and I. H. Wilson

Phys. Rev. Lett. 81, 1054 (1998) - Published 3 August, 1998

Spectral Consequences of Broken Phase Coherence in $1 T$ - ${TaS}_{2}$

F. Zwick, H. Berger, I. Vobornik, G. Margaritondo, L. Forró, C. Beeli, M. Onellion, G. Panaccione, A. Taleb-Ibrahimi, and M. Grioni

Phys. Rev. Lett. 81, 1058 (1998) - Published 3 August, 1998

Boundary Conditions at the Mobility Edge

D. Braun, G. Montambaux, and M. Pascaud

Phys. Rev. Lett. 81, 1062 (1998) - Published 3 August, 1998

Decoherence and the Thouless Crossover in One-Dimensional Conductors

Yu. B. Khavin, M. E. Gershenson, and A. L. Bogdanov

Phys. Rev. Lett. 81, 1066 (1998) - Published 3 August, 1998

Velocity Shift of Surface Acoustic Waves due to Interaction with Composite Fermions in a Modulated Structure

A. D. Mirlin, P. Wölfle, Y. Levinson, and O. Entin-Wohlman

Phys. Rev. Lett. 81, 1070 (1998) - Published 3 August, 1998

Quantum Decoherence in Disordered Mesoscopic Systems

Dmitrii S. Golubev and Andrei D. Zaikin

Phys. Rev. Lett. 81, 1074 (1998) - Published 3 August, 1998

Pairing Effects at the Edge of Paired Quantum Hall States

Kazusumi Ino

Phys. Rev. Lett. 81, 1078 (1998) - Published 3 August, 1998

Direct Determination of the Exciton Binding Energy of Conjugated Polymers Using a Scanning Tunneling Microscope

S. F. Alvarado, P. F. Seidler, D. G. Lidzey, and D. D. C. Bradley

Phys. Rev. Lett. 81, 1082 (1998) - Published 3 August, 1998

The Resonance Peak in Cuprate Superconductors

Dirk K. Morr and David Pines

Phys. Rev. Lett. 81, 1086 (1998) - Published 3 August, 1998

Pressure-Induced Dimensional Crossover and Superconductivity in the Hole-Doped Two-Leg Ladder Compound ${Sr}_{14 - x} {Ca}_{x} {Cu}_{24} O_{41}$

T. Nagata, M. Uehara, J. Goto, J. Akimitsu, N. Motoyama, H. Eisaki, S. Uchida, H. Takahashi, T. Nakanishi, and N. Môri

Phys. Rev. Lett. 81, 1090 (1998) - Published 3 August, 1998

$3 D - XY$ Critical Fluctuations of the Thermal Expansivity in Detwinned ${YBa}_{2} {Cu}_{3} O_{7 - δ}$ Single Crystals Near Optimal Doping

Volker Pasler, Peter Schweiss, Christoph Meingast, Bernhard Obst, Helmut Wühl, Alexandre I. Rykov, and Setsuko Tajima

Phys. Rev. Lett. 81, 1094 (1998) - Published 3 August, 1998

Interdisciplinary Physics: Biological Physics, Quantum Information, etc.

Segregation-Induced Instability of Nanocrystalline Line Compounds

Jörg Weissmüller and Hendrik Ehrhardt

Phys. Rev. Lett. 81, 1114 (1998) - Published 3 August, 1998

Nonequilibrium Molecular Dynamics Simulations of Planar Elongational Flow with Spatially and Temporally Periodic Boundary Conditions

B. D. Todd and Peter J. Daivis

Phys. Rev. Lett. 81, 1118 (1998) - Published 3 August, 1998

COMMENTS

Comment on “Subdiffusion and Anomalous Local Viscoelasticity in Actin Networks”

E. Barkai and J. Klafter

Phys. Rev. Lett. 81, 1134 (1998) - Published 3 August, 1998

Amblard et al. Reply:

F. Amblard, A. C. Maggs, B. Yurke, A. N. Pargellis, and S. Leibler

Phys. Rev. Lett. 81, 1135 (1998) - Published 3 August, 1998

ERRATA

Erratum: Subdiffusion and Anomalous Local Viscoelasticity in Actin Networks [Phys. Rev. Lett. 77, 4470 (1996)]

F. Amblard, A. C. Maggs, B. Yurke, A. N. Pargellis, and S. Leibler

Phys. Rev. Lett. 81, 1136 (1998) - Published 3 August, 1998