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Physical Review Letters

Volume 71, Issue 4

26 July 1993

Browse Issues:

LETTERS

General Physics

New family of unitary random matrices

K. A. Muttalib, Y. Chen, M. E. H. Ismail, and V. N. Nicopoulos

Phys. Rev. Lett. 71, 471 (1993) - Published 26 July, 1993

Gravitation and Astrophysics

New upper limits on the tau-neutrino mass from primordial helium considerations

A. D. Dolgov and I. Z. Rothstein

Phys. Rev. Lett. 71, 476 (1993) - Published 26 July, 1993

Elementary Particles and Fields

QED effective action at finite temperature and density

Per Elmfors, David Persson, and Bo-Sture Skagerstam

Phys. Rev. Lett. 71, 480 (1993) - Published 26 July, 1993

Direct instantons in QCD nucleon sum rules

Hilmar Forkel and Manoj K. Banerjee

Phys. Rev. Lett. 71, 484 (1993) - Published 26 July, 1993

Gluon fusion: A probe of Higgs sector CP violation

John F. Gunion, T. C. Yuan, and B. Grza̧dkowski

Phys. Rev. Lett. 71, 488 (1993) - Published 26 July, 1993

Transverse tau polarization in decays of the top and botton quarks in the Weinberg model of CP nonconservation

D. Atwood, G. Eilam, and A. Soni

Phys. Rev. Lett. 71, 492 (1993) - Published 26 July, 1993

QCD predictions for lepton spectra in inclusive heavy flavor decays

I. I. Bigi, M. Shifman, N. G. Uraltsev, and A. Vainshtein

Phys. Rev. Lett. 71, 496 (1993) - Published 26 July, 1993

Measurement of the bottom quark production cross section using semileptonic decay electrons in pp¯ collisions at √s =1.8 TeV

F. Abe, et. al

Phys. Rev. Lett. 71, 500 (1993) - Published 26 July, 1993

Nuclear Physics

Nuclear dynamics in the Wigner representation

A. Bonasera, V. N. Kondratyev, A. Smerzi, and E. A. Remler

Phys. Rev. Lett. 71, 505 (1993) - Published 26 July, 1993

Atomic, Molecular, and Optical Physics

High intensity above-threshold ionization of He

U. Mohideen, M. H. Sher, H. W. K. Tom, G. D. Aumiller, O. R. Wood, II, R. R. Freeman, J. Boker, and P. H. Bucksbaum

Phys. Rev. Lett. 71, 509 (1993) - Published 26 July, 1993

Strong velocity dependence of electron capture in collisions between aligned ${Na}^{*}$ (3p) and ${He}^{2 +}$

A. R. Schlatmann, R. Hoekstra, R. Morgenstern, R. E. Olson, and J. Pascale

Phys. Rev. Lett. 71, 513 (1993) - Published 26 July, 1993

Controlled atomic spontaneous emission from ${Er}^{3 +}$ in a transparent Si/ ${SiO}_{2}$ microcavity

A. M. Vredenberg, N. E. J. Hunt, E. F. Schubert, D. C. Jacobson, J. M. Poate, and G. J. Zydzik

Phys. Rev. Lett. 71, 517 (1993) - Published 26 July, 1993

Nonlinear Dynamics, Fluid Dynamics, Classical Optics, Etc.

Characterization of spatiotemporal chaos from time series

M. Bauer, H. Heng, and W. Martienssen

Phys. Rev. Lett. 71, 521 (1993) - Published 26 July, 1993

Hypersensitivity to perturbations in the quantum baker’s map

Rüdiger Schack and Carlton M. Caves

Phys. Rev. Lett. 71, 525 (1993) - Published 26 July, 1993

Quantum signatures of classical chaos: Sensitivity of wave functions to perturbations

L. Benet, T. H. Seligman, and H. A. Weidenmüller

Phys. Rev. Lett. 71, 529 (1993) - Published 26 July, 1993

Observation of self-trapping of an optical beam due to the photorefractive effect

Galen C. Duree, Jr., John L. Shultz, Gregory J. Salamo, Mordechai Segev, Amnon Yariv, Bruno Crosignani, Paolo Di Porto, Edward J. Sharp, and Ratnakar R. Neurgaonkar

Phys. Rev. Lett. 71, 533 (1993) - Published 26 July, 1993

Condensed Matter: Structure, Etc.

X-ray flux enhancement in thin-film waveguides using resonant beam couplers

Y. P. Feng, S. K. Sinha, H. W. Deckman, J. B. Hastings, and D. P. Siddons

Phys. Rev. Lett. 71, 537 (1993) - Published 26 July, 1993

Molecular dynamics in dense hydrogen

D. Hohl, V. Natoli, D. M. Ceperley, and R. M. Martin

Phys. Rev. Lett. 71, 541 (1993) - Published 26 July, 1993

X-ray measurement of the twist grain boundary angle in the liquid crystal analog of the Abrikosov phase

L. Navailles, P. Barois, and H. T. Nguyen

Phys. Rev. Lett. 71, 545 (1993) - Published 26 July, 1993

Direct evidence for plastic deformation of quasicrystals by means of a dislocation mechanism

M. Wollgarten, M. Beyss, K. Urban, H. Liebertz, and U. Köster

Phys. Rev. Lett. 71, 549 (1993) - Published 26 July, 1993

Theory of ice structures

V. P. Dmitriev, S. B. Rochal, and P. Toledano

Phys. Rev. Lett. 71, 553 (1993) - Published 26 July, 1993

Bond-centered muonium in diamond: Resolved nuclear hyperfine structure

J. W. Schneider, R. F. Kiefl, K. H. Chow, S. Johnston, J. Sonier, T. L. Estle, B. Hitti, R. L. Lichti, S. H. Connell, J. P. F. Sellschop, C. G. Smallman, T. R. Anthony, and W. F. Banholzer

Phys. Rev. Lett. 71, 557 (1993) - Published 26 July, 1993

Inverse method for interface problems

Chi-Hang Lam and Leonard M. Sander

Phys. Rev. Lett. 71, 561 (1993) - Published 26 July, 1993

Driven diffusion, Kawasaki dynamics, mixing, and spatial ordering in an interacting lattice gas

Yan He and Ras B. Pandey

Phys. Rev. Lett. 71, 565 (1993) - Published 26 July, 1993

Dependence of nucleation on shear-induced initial conditions

K. Y. Min and W. I. Goldburg

Phys. Rev. Lett. 71, 569 (1993) - Published 26 July, 1993

Spin-lattice relaxation: Non-Bloembergen-Purcell-Pound behavior by structural disorder and Coulomb interactions

Martin Meyer, Philipp Maass, and Armin Bunde

Phys. Rev. Lett. 71, 573 (1993) - Published 26 July, 1993

Mechanisms of island formation of alkali-metal adsorbates on Al(111)

Jörg Neugebauer and Matthias Scheffler

Phys. Rev. Lett. 71, 577 (1993) - Published 26 July, 1993

Structure determination for coadsorbed molecular fragments using chemical shift photoelectron diffraction

K.-U. Weiss, R. Dippel, K.-M. Schindler, P. Gardner, V. Fritzsche, A. M. Bradshaw, D. P. Woodruff, M. C. Asensio, and A. R. González-Elipe

Phys. Rev. Lett. 71, 581 (1993) - Published 26 July, 1993

Dimer exchange mechanism for substitutional As adsorption on Si(100)

Byung Deok Yu and Atsushi Oshiyama

Phys. Rev. Lett. 71, 585 (1993) - Published 26 July, 1993

Theory of pattern selection in three-dimensional nonaxisymmetric dendritic growth

Martine Ben Amar and Efim Brener

Phys. Rev. Lett. 71, 589 (1993) - Published 26 July, 1993

Spreading of droplets on a solid surface

Michael Brenner and Andrea Bertozzi

Phys. Rev. Lett. 71, 593 (1993) - Published 26 July, 1993

Condensed Matter: Electronic Properties, Etc.

Measured and calculated distributions of deep defect states in hydrogenated amorphous silicon: Verification of deep defect relaxation dynamics

Fan Zhong and J. David Cohen

Phys. Rev. Lett. 71, 597 (1993) - Published 26 July, 1993

Femtosecond scattering dynamics in magnetic semiconductor spin superlattices

J. F. Smyth, D. A. Tulchinsky, D. D. Awschalom, N. Samarth, H. Luo, and J. K. Furdyna

Phys. Rev. Lett. 71, 601 (1993) - Published 26 July, 1993

Classical-to-quantum crossover in charge-density wave creep at low temperatures

S. V. Zaitsev-Zotov

Phys. Rev. Lett. 71, 605 (1993) - Published 26 July, 1993

Graded electronic structure in a 3 nm strained ${Ge}_{40}$ ${Si}_{60}$ quantum well

P. E. Batson and J. F. Morar

Phys. Rev. Lett. 71, 609 (1993) - Published 26 July, 1993

N-electron ground state energies of a quantum dot in magnetic field

R. C. Ashoori, H. L. Stormer, J. S. Weiner, L. N. Pfeiffer, K. W. Baldwin, and K. W. West

Phys. Rev. Lett. 71, 613 (1993) - Published 26 July, 1993

Universal behavior of the Hall resistivity of single crystalline ${Bi}_{2}$ ${Sr}_{2}$ ${CaCu}_{2}$ $O_{x}$ in the thermally activated flux flow regime

A. V. Samoilov

Phys. Rev. Lett. 71, 617 (1993) - Published 26 July, 1993

Diminishing sign anomaly and scaling behavior of the mixed-state Hall resistivity in ${Tl}_{2}$ ${Ba}_{2}$ ${Ca}_{2}$ ${Cu}_{3}$ $O_{10}$ films containing columnar defects

R. C. Budhani, S. H. Liou, and Z. X. Cai

Phys. Rev. Lett. 71, 621 (1993) - Published 26 July, 1993

Nonunitary superconducting state in ${UPt}_{3}$

Tetsuo Ohmi and Kazushige Machida

Phys. Rev. Lett. 71, 625 (1993) - Published 26 July, 1993

Can 5d and sp impurities be magnetic?

N. Papanikolaou, N. Stefanou, R. Zeller, and P. H. Dederichs

Phys. Rev. Lett. 71, 629 (1993) - Published 26 July, 1993

Depletion-electric-field-induced changes in second-harmonic generation from GaAs

J. Qi, M. S. Yeganeh, I. Koltover, A. G. Yodh, and W. M. Theis

Phys. Rev. Lett. 71, 633 (1993) - Published 26 July, 1993

Voltage-controlled spectral shift of porous silicon electroluminescence

A. Bsiesy, F. Muller, M. Ligeon, F. Gaspard, R. Herino, R. Romestain, and J. C. Vial

Phys. Rev. Lett. 71, 637 (1993) - Published 26 July, 1993

Competing routes for charge transfer in co-adsorption of K and $O_{2}$ on graphite

K. M. Hock, J. C. Barnard, R. E. Palmer, and H. Ishida

Phys. Rev. Lett. 71, 641 (1993) - Published 26 July, 1993

Cross-Disciplinary Physics

Scattering from network polydispersity in polymer gels

Erik Geissler, Ferenc Horkay, and Anne-Marie Hecht

Phys. Rev. Lett. 71, 645 (1993) - Published 26 July, 1993

Foreign imaging in Auger spectroscopy: The Si 2p spectrum of silicon tetrafluoride

Francesco Tarantelli and Lorenz S. Cederbaum

Phys. Rev. Lett. 71, 649 (1993) - Published 26 July, 1993

COMMENTS

Comment on ‘‘Noisy uncoupled chaotic map ensembles violate the law of large numbers’’

Arkady S. Pikovsky

Phys. Rev. Lett. 71, 653 (1993) - Published 26 July, 1993

Comment on ‘‘Magnetization and spin-wave velocities in ${La}_{2}$ ${CuO}_{4}$ ’’

P. Imbert, G. Jéhanno, and J. A. Hodges

Phys. Rev. Lett. 71, 654 (1993) - Published 26 July, 1993

Kopietz replies

Peter Kopietz

Phys. Rev. Lett. 71, 655 (1993) - Published 26 July, 1993

ERRATA

Transition from Semiorder to Disorder in the Aggregation of Dense Colloidal Solutions

Marina Carpineti and Marzio Giglio

Phys. Rev. Lett. 71, 656 (1993) - Published 26 July, 1993