Volume 59, Issue 18

G. Hebbinghaus, T. Rzaca-Urban, C. Senff, R. M. Lieder, W. Gast, A. Krämer-Flecken, H. Schnare, W. Urban, G. de Angelis, P. Kleinheinz, W. Starzecki, J. Styczen, P. von Brentano, A. Dewald, J. Eberth, W. Lieberz, T. Mylaeus, A. v.d. Werth, H. Wolters, K. O. Zell, S. Heppner, H. Hübel, M. Murzel, H. Grawe, and H. Kluge

Phys. Rev. Lett. 59, 2024 (1987) - Published 2 November, 1987

Multipole strength distributions and form factors for E1, E2/E0, and E3 from ${}^{238}U$ (e,e’f) coincidence experiments

Th. Weber, R. D. Heil, U. Kneissl, W. Pecho, W. Wilke, H. J. Emrich, Th. Kihm, and K. T. Knöpfle

Phys. Rev. Lett. 59, 2028 (1987) - Published 2 November, 1987

Geometrical interpretation of SO(7): A critical dynamical symmetry

Wei-Min Zhang, Da Hsuan Feng, and Joseph N. Ginocchio

Phys. Rev. Lett. 59, 2032 (1987) - Published 2 November, 1987

Atomic, Molecular, and Optical Physics

Coincidence spectroscopy of highly charged xenon ions by electron impact

M. A. Chaudhry, A. J. Duncan, R. Hippler, and H. Kleinpoppen

Phys. Rev. Lett. 59, 2036 (1987) - Published 2 November, 1987

Three-step excitation of highly excited autoionizing states in atomic sodium by use of laser beams and synchrotron radiation

M. Ferray, F. Gounand, P. D’Oliveira, P. R. Fournier, D. Cubaynes, J. M. Bizau, T. J. Morgan, and F. J. Wuilleumier

Phys. Rev. Lett. 59, 2040 (1987) - Published 2 November, 1987

Measurement of subpicosecond time intervals between two photons by interference

C. K. Hong, Z. Y. Ou, and L. Mandel

Phys. Rev. Lett. 59, 2044 (1987) - Published 2 November, 1987

Optical guiding in a free-electron–laser oscillator

J. E. LaSala, D. A. G. Deacon, and J. M. J. Madey

Phys. Rev. Lett. 59, 2047 (1987) - Published 2 November, 1987

Photopumping of a C iii ultraviolet laser by Mn vi line radiation

Niansheng Qi and Mahadevan Krishnan

Phys. Rev. Lett. 59, 2051 (1987) - Published 2 November, 1987

Observation of the infrared spectrum of the helium molecular ion $(^{3}$ He ${}^{4}$ He $)^{+}$

Nan Yu and William H. Wing

Phys. Rev. Lett. 59, 2055 (1987) - Published 2 November, 1987

Nonlinear Dynamics, Fluid Dynamics, Classical Optics, Etc.

Turbulent drag reduction by polymers: A quantitative theory

Gregory Ryskin

Phys. Rev. Lett. 59, 2059 (1987) - Published 2 November, 1987

Plasma and Beam Physics

Integrable ponderomotive system: Cavitons are solitons

D. J. Kaup

Phys. Rev. Lett. 59, 2063 (1987) - Published 2 November, 1987

Condensed Matter: Structure, Etc.

Some consequences of an equation of motion for diffusive growth

Thomas C. Halsey

Phys. Rev. Lett. 59, 2067 (1987) - Published 2 November, 1987

Imaging chemical-bond formation with the scanning tunneling microscope: ${NH}_{3}$ dissociation on Si(001)

R. J. Hamers, Ph. Avouris, and F. Bozso

Phys. Rev. Lett. 59, 2071 (1987) - Published 2 November, 1987

X-ray scattering study of the thermal roughening of Ag(110)

G. A. Held, J. L. Jordan-Sweet, P. M. Horn, A. Mak, and R. J. Birgeneau

Phys. Rev. Lett. 59, 2075 (1987) - Published 2 November, 1987

Two-level systems observed in the mechanical properties of single-crystal silicon at low temperatures

R. N. Kleiman, G. Agnolet, and D. J. Bishop

Phys. Rev. Lett. 59, 2079 (1987) - Published 2 November, 1987

Observation of a glass transition in suspensions of spherical colloidal particles

P. N. Pusey and W. van Megen

Phys. Rev. Lett. 59, 2083 (1987) - Published 2 November, 1987

Passivation of shallow acceptors by H in Si: A microscopic study by perturbed angular correlations

Th. Wichert, H. Skudlik, M. Deicher, G. Grübel, R. Keller, E. Recknagel, and and L. Song

Phys. Rev. Lett. 59, 2087 (1987) - Published 2 November, 1987

Condensed Matter: Electronic Properties, Etc.

Comparison of dipole layers, band offsets, and formation enthalpies of GaAs-AlAs(110) and (001) interfaces

D. M. Bylander and Leonard Kleinman

Phys. Rev. Lett. 59, 2091 (1987) - Published 2 November, 1987

Equivalence of the resonating-valence-bond and fractional quantum Hall states

V. Kalmeyer and R. B. Laughlin

Phys. Rev. Lett. 59, 2095 (1987) - Published 2 November, 1987

Spin polarization of ion-excited secondary electrons from ferromagnets and its application for magnetic sputter depth profiling

J. Kirschner, K. Koike, and H. P. Oepen

Phys. Rev. Lett. 59, 2099 (1987) - Published 2 November, 1987

Exciton kinetics in ultrathin molecular wires and pores

Jagdish Prasad and Raoul Kopelman

Phys. Rev. Lett. 59, 2103 (1987) - Published 2 November, 1987

Exciton-mediated photovoltaic effect in ${Cu}_{2}$ O/Cu

E. Tselepis, E. Fortin, and André Mysyrowicz

Phys. Rev. Lett. 59, 2107 (1987) - Published 2 November, 1987

Geophysics, Astronomy, and Astrophysics

Quantum fluctuations of the superconducting cosmic string

Shoucheng Zhang

Phys. Rev. Lett. 59, 2111 (1987) - Published 2 November, 1987

COMMENTS

Comment on ‘‘Interstitial hydrogen and neutralization of shallow-donor impurities in single-crystal silicon’’

Suman B. Iyer and Vikram Kumar

Phys. Rev. Lett. 59, 2115 (1987) - Published 2 November, 1987

Johnson, Herring, and Chadi reply

N. M. Johnson, C. Herring, and D. J. Chadi

Phys. Rev. Lett. 59, 2116 (1987) - Published 2 November, 1987

Comment on ‘‘Generation of superfluid turbulence deduced from simple dynamical rules’’

Thomas F. Buttke

Phys. Rev. Lett. 59, 2117 (1987) - Published 2 November, 1987

Schwarz replies

K. W. Schwarz

Phys. Rev. Lett. 59, 2118 (1987) - Published 2 November, 1987

Comment on ‘‘So-called icosahedral and decagonal quasicrystals are twins of an 820-atom cubic crystal’’

P. A. Heiney, P. A. Bancel, and P. M. Horn

Phys. Rev. Lett. 59, 2119 (1987) - Published 2 November, 1987

Pauling replies

Linus Pauling

Phys. Rev. Lett. 59, 2120 (1987) - Published 2 November, 1987

Comment on ‘‘Hydrodynamic behavior of fractal aggregates’’

Zhong-Ying Chen, Paul Meakin, and John M. Deutch

Phys. Rev. Lett. 59, 2121 (1987) - Published 2 November, 1987

Comment on ‘‘Hydrodynamic behavior of fractal aggregates’’

P. N. Pusey, J. G. Rarity, R. Klein, and D. A. Weitz

Phys. Rev. Lett. 59, 2122 (1987) - Published 2 November, 1987

Wiltzius and van Saarloos reply

Pierre Wiltzius and Wim van Saarloos

Phys. Rev. Lett. 59, 2123 (1987) - Published 2 November, 1987

ERRATA

Erratum: Small-angle Rayleigh scattering in ${CCl}_{4}$ subjected to a temperature gradient [Phys. Rev. Lett. 55, 630 (1985)]

H. G. Wegdam, N. M. Keulen, and J. C. F. Michielsen

Phys. Rev. Lett. 59, 2124 (1987) - Published 2 November, 1987

Observation of a Quasifree Three-Nucleon-Absorption Mode of Pions in ${}^{4}{He}$

G. Backenstoss, M. Iżycki, P. Salvisberg, M. Steinacher, P. Weber, H. J. Weyer, S. Cierjacks, B. Rzehorz, H. Ullrich, M. Furić, T. Petković, and N. Simićević

Phys. Rev. Lett. 59, 2124 (1987) - Published 2 November, 1987

Picosecond Optical Time-of-Flight Studies of Carrier Transport in $a - Si : H - a - Si N_{x} : H$ Multilayers

H. T. Grahn, Z. Vardeny, J. Tauc, and B. Abeles

Phys. Rev. Lett. 59, 2124 (1987) - Published 2 November, 1987