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Physical Review Letters

Volume 70, Issue 24

14 June 1993

Browse Issues:

LETTERS

General Physics

Braids in classical dynamics

Cristopher Moore

Phys. Rev. Lett. 70, 3675 (1993) - Published 14 June, 1993

Gravitation and Astrophysics

How fast does information leak out from a black hole?

Jacob D. Bekenstein

Phys. Rev. Lett. 70, 3680 (1993) - Published 14 June, 1993

Black hole entropy and higher curvature interactions

Ted Jacobson and Robert C. Myers

Phys. Rev. Lett. 70, 3684 (1993) - Published 14 June, 1993

Elementary Particles and Fields

Critical superstring vacua from noncritical manifolds: A novel framework for string compactification and mirror symmetry

Rolf Schimmrigk

Phys. Rev. Lett. 70, 3688 (1993) - Published 14 June, 1993

Momentum analyticity and finiteness of the 1-loop superstring amplitude

Eric D’Hoker and D. H. Phong

Phys. Rev. Lett. 70, 3692 (1993) - Published 14 June, 1993

Predictions in SU(5) supergravity grand unification with proton stability and relic density constraints

Pran Nath and R. Arnowitt

Phys. Rev. Lett. 70, 3696 (1993) - Published 14 June, 1993

Limit on the tau neutrino mass

D. Cinabro et al.

Phys. Rev. Lett. 70, 3700 (1993) - Published 14 June, 1993

Nuclear Physics

Observation of a saturation in the time scale for multifragment emission in symmetric heavy-ion collisions

E. Bauge, A. Elmaani, Roy A. Lacey, J. Lauret, N. N. Ajitanand, D. Craig, M. Cronqvist, E. Gualtieri, S. Hannuschke, T. Li, B. Llope, T. Reposeur, A. Vander Molen, G. D. Westfall, J. S. Winfield, J. Yee, S. Yennello, A. Nadasen, R. S. Tickle, and E. Norbeck

Phys. Rev. Lett. 70, 3705 (1993) - Published 14 June, 1993

Impact-parameter-selected two-proton intensity interferometry for ${}^{36}{Ar}$ $+^{45}$ Sc at E/A=80 MeV

M. A. Lisa, C. K. Gelbke, W. Bauer, P. Decowski, W. G. Gong, E. Gualtieri, S. Hannuschke, R. Lacey, T. Li, W. G. Lynch, C. M. Mader, G. F. Peaslee, T. Reposeur, A. M. Vander Molen, G. D. Westfall, J. Yee, and S. J. Yennello

Phys. Rev. Lett. 70, 3709 (1993) - Published 14 June, 1993

Atomic, Molecular, and Optical Physics

Observation of hyperfine splitting on an x-ray laser transition

Joseph Nilsen, Jeffrey A. Koch, James H. Scofield, Brian J. MacGowan, Juan C. Moreno, and Luiz B. Da Silva

Phys. Rev. Lett. 70, 3713 (1993) - Published 14 June, 1993

Spin-resolved Auger electron spectroscopy of barium atoms

R. Kuntze, M. Salzmann, N. Böwering, and U. Heinzmann

Phys. Rev. Lett. 70, 3716 (1993) - Published 14 June, 1993

Muon-catalyzed pt fusion

P. Baumann, H. Daniel, S. Grunewald, F. J. Hartmann, R. Lipowsky, E. Moser, W. Schott, T. von Egidy, P. Ackerbauer, W. H. Breunlich, M. Fuchs, M. Jeitler, P. Kammel, J. Marton, N. Nägele, J. Werner, J. Zmeskal, H. Bossy, K. M. Crowe, R. H. Sherman, K. Lou, C. Petitjean, and V. E. Markushin

Phys. Rev. Lett. 70, 3720 (1993) - Published 14 June, 1993

Nonlinear Dynamics, Fluid Dynamics, Classical Optics, Etc.

Dispersion relation in the third-order electric susceptibility for polysilane film

H. Kishida, T. Hasegawa, Y. Iwasa, T. Koda, and Y. Tokura

Phys. Rev. Lett. 70, 3724 (1993) - Published 14 June, 1993

Vibration-induced size separation in granular media: The convection connection

James B. Knight, H. M. Jaeger, and Sidney R. Nagel

Phys. Rev. Lett. 70, 3728 (1993) - Published 14 June, 1993

Plasma and Beam Physics

Superposition of nonlinear plasma waves

Mark Buchanan and J. J. Dorning

Phys. Rev. Lett. 70, 3732 (1993) - Published 14 June, 1993

Long-wavelength density turbulence in the TFTR tokamak

R. J. Fonck, G. Cosby, R. D. Durst, S. F. Paul, N. Bretz, S. Scott, E. Synakowski, and G. Taylor

Phys. Rev. Lett. 70, 3736 (1993) - Published 14 June, 1993

Condensed Matter: Structure, Etc.

Observation and calculation of internal structure in scanning tunneling microscopy images of related molecules

V. M. Hallmark, S. Chiang, K.-P. Meinhardt, and K. Hafner

Phys. Rev. Lett. 70, 3740 (1993) - Published 14 June, 1993

Reptation as a dynamic mean-field theory: Study of a simple model of rodlike polymers

Grzegorz Szamel

Phys. Rev. Lett. 70, 3744 (1993) - Published 14 June, 1993

Preferred Mn spacings in Al-Mn compounds

J. Zou and A. E. Carlsson

Phys. Rev. Lett. 70, 3748 (1993) - Published 14 June, 1993

Free energies of generalized stacking faults in Si and implications for the brittle-ductile transition

Efthimios Kaxiras and Michael S. Duesbery

Phys. Rev. Lett. 70, 3752 (1993) - Published 14 June, 1993

Defect production and annealing in ion-implanted amorphous silicon

S. Coffa, F. Priolo, and A. Battaglia

Phys. Rev. Lett. 70, 3756 (1993) - Published 14 June, 1993

Novel infrared vibron absorption in solid hydrogen at megabar pressures

Michael Hanfland, Russell J. Hemley, and Ho-kwang Mao

Phys. Rev. Lett. 70, 3760 (1993) - Published 14 June, 1993

Thermal conductivity of isotopically modified single crystal diamond

Lanhua Wei, P. K. Kuo, R. L. Thomas, T. R. Anthony, and W. F. Banholzer

Phys. Rev. Lett. 70, 3764 (1993) - Published 14 June, 1993

Growth of the room temperature Au/Si(111)-7×7 interface

J.-J. Yeh, J. Hwang, K. Bertness, D. J. Friedman, R. Cao, and I. Lindau

Phys. Rev. Lett. 70, 3768 (1993) - Published 14 June, 1993

Condensed Matter: Electronic Properties, Etc.

Fermi surface of a quasi-one-dimensional oxide conductor

Kevin E. Smith, Klaus Breuer, Martha Greenblatt, and William McCarroll

Phys. Rev. Lett. 70, 3772 (1993) - Published 14 June, 1993

Dependence of critical exponents on θ parameter in anyon lattice model

A. P. Protegenov and V. A. Verbus

Phys. Rev. Lett. 70, 3776 (1993) - Published 14 June, 1993

Generalized hard-core fermions in one dimension: An exactly solvable Luttinger liquid

G. Gómez-Santos

Phys. Rev. Lett. 70, 3780 (1993) - Published 14 June, 1993

Scaling near mode locking in a charge density wave conductor

Mark J. Higgins, A. Alan Middleton, and S. Bhattacharya

Phys. Rev. Lett. 70, 3784 (1993) - Published 14 June, 1993

Carrier-acoustic plasmon instability in semiconductor quantum wires

M. Bonitz, R. Binder, and S. W. Koch

Phys. Rev. Lett. 70, 3788 (1993) - Published 14 June, 1993

Photon-mediated sequential resonant tunneling in intense terahertz electric fields

P. S. S. Guimarães, Brian J. Keay, Jann P. Kaminski, S. J. Allen, Jr., P. F. Hopkins, A. C. Gossard, L. T. Florez, and J. P. Harbison

Phys. Rev. Lett. 70, 3792 (1993) - Published 14 June, 1993

Variable range hopping as the mechanism of the conductivity peak broadening in the quantum Hall regime

D. G. Polyakov and B. I. Shklovskii

Phys. Rev. Lett. 70, 3796 (1993) - Published 14 June, 1993

Experimental evidence for a multicritical point in the magnetic phase diagram for the mixed state of clean untwinned ${YBa}_{2}$ ${Cu}_{3}$ $O_{7}$

H. Safar, P. L. Gammel, D. A. Huse, D. J. Bishop, W. C. Lee, J. Giapintzakis, and D. M. Ginsberg

Phys. Rev. Lett. 70, 3800 (1993) - Published 14 June, 1993

Renormalization of phonons in a (Y/Pr) ${Ba}_{2}$ ${Cu}_{3}$ $O_{7}$ superlattice investigated by Raman spectroscopy

R. Li, R. Feile, G. Jakob, Th. Hahn, and H. Adrian

Phys. Rev. Lett. 70, 3804 (1993) - Published 14 June, 1993

1/N expansion and long range antiferromagnetic order

Maxim Raykin and Assa Auerbach

Phys. Rev. Lett. 70, 3808 (1993) - Published 14 June, 1993

Kagomé antiferromagnet with defects: Satisfaction, frustration, and spin folding in a random spin system

E. F. Shender, V. B. Cherepanov, P. C. W. Holdsworth, and A. J. Berlinsky

Phys. Rev. Lett. 70, 3812 (1993) - Published 14 June, 1993

Structure-sensitive spectroscopy of transition-metal-hydrogen complexes in silicon

P. M. Williams, G. D. Watkins, S. Uftring, and Michael Stavola

Phys. Rev. Lett. 70, 3816 (1993) - Published 14 June, 1993

Femtosecond energy relaxation in π-conjugated polymers

R. Kersting, U. Lemmer, R. F. Mahrt, K. Leo, H. Kurz, H. Bässler, and E. O. Göbel

Phys. Rev. Lett. 70, 3820 (1993) - Published 14 June, 1993

Cross-Disciplinary Physics

Steady-state reaction-diffusion front scaling for mA+nB→[inert]

Stephen Cornell and Michel Droz

Phys. Rev. Lett. 70, 3824 (1993) - Published 14 June, 1993

Transition from semiorder to disorder in the aggregation of dense colloidal solutions

Marina Carpineti and Marzio Giglio

Phys. Rev. Lett. 70, 3828 (1993) - Published 14 June, 1993

COMMENTS

Self-organized interface depinning

Lei-Han Tang and Heiko Leschhorn

Phys. Rev. Lett. 70, 3832 (1993) - Published 14 June, 1993

Sneppen and Jensen reply

Kim Sneppen and M. H. Jensen

Phys. Rev. Lett. 70, 3833 (1993) - Published 14 June, 1993

The p(γ→, $π^{0}$ ) reaction in the Δ(1232) region

R. M. Davidson and Nimai C. Mukhopadhyay

Phys. Rev. Lett. 70, 3834 (1993) - Published 14 June, 1993

Sandorfi and Khandaker reply

A. M. Sandorfi and M. Khandaker

Phys. Rev. Lett. 70, 3835 (1993) - Published 14 June, 1993

Comment on ‘‘Binding of hydrogen molecules by a transition-metal ion’’

M. Manninen and R. M. Nieminen

Phys. Rev. Lett. 70, 3836 (1993) - Published 14 June, 1993

Niu, Rao, and Jena reply

J. Niu, B. K. Rao, and P. Jena

Phys. Rev. Lett. 70, 3837 (1993) - Published 14 June, 1993