Volume 66, Issue 19

13 May 1991

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LETTERS

General Physics

Ground-state energy for ‘‘charged’’ bosons in one dimension

Thomas Blum, Daniel S. Koltun, and Yonathan Shapir

Phys. Rev. Lett. 66, 2417 (1991) - Published 13 May, 1991

Gravitation and Astrophysics

Trapped surfaces due to concentration of gravitational radiation

R. Beig and N. Ó Murchadha

Phys. Rev. Lett. 66, 2421 (1991) - Published 13 May, 1991

Cooling of a strange star with crust

Pierre M. Pizzochero

Phys. Rev. Lett. 66, 2425 (1991) - Published 13 May, 1991

Elementary Particles and Fields

Nonlinear σ model at θ=π: Euclidean lattice formulation and solid-on-solid models

Ian Affleck

Phys. Rev. Lett. 66, 2429 (1991) - Published 13 May, 1991

Associated production of Higgs bosons with tt¯ pairs

William J. Marciano and Frank E. Paige

Phys. Rev. Lett. 66, 2433 (1991) - Published 13 May, 1991

B semileptonic decays at the Υ(4S) and the Υ(5S)

C. Yanagisawa, U. Heintz, J. Lee-Franzini, D. M. J. Lovelock, M. Narain, R. D. Schamberger, J. Willins, P. Franzini, and P. M. Tuts

Phys. Rev. Lett. 66, 2436 (1991) - Published 13 May, 1991

Search for long-lived neutral bosons in orthopositronium decay

S. Asai, S. Orito, K. Yoshimura, and T. Haga

Phys. Rev. Lett. 66, 2440 (1991) - Published 13 May, 1991

Nuclear Physics

Evidence for the emission of a 17-keV neutrino in the β decay of ${}^{14}C$

Bhaskar Sur, Eric B. Norman, K. T. Lesko, M. M. Hindi, Ruth-Mary Larimer, Paul N. Luke, William L. Hansen, and Eugene E. Haller

Phys. Rev. Lett. 66, 2444 (1991) - Published 13 May, 1991

Evidence for dineutrons in extremely neutron-rich nuclei

Kamal K. Seth and Brett Parker

Phys. Rev. Lett. 66, 2448 (1991) - Published 13 May, 1991

Coulomb excitation of ${}^{8}{Li}$

J. A. Brown, F. D. Becchetti, J. W. Jänecke, K. Ashktorab, D. A. Roberts, J. J. Kolata, R. J. Smith, K. Lamkin, and R. E. Warner

Phys. Rev. Lett. 66, 2452 (1991) - Published 13 May, 1991

Magnetic dipole spin resonance in rare-earth nuclei

C. De Coster and K. Heyde

Phys. Rev. Lett. 66, 2456 (1991) - Published 13 May, 1991

Atomic, Molecular, and Optical Physics

Observation of linewidth narrowing due to coherent stabilization of quantum fluctuations

Daniel J. Gauthier, Yifu Zhu, and T. W. Mossberg

Phys. Rev. Lett. 66, 2460 (1991) - Published 13 May, 1991

Femtosecond non-Markovian optical dynamics in solution

Erik T. J. Nibbering, Douwe A. Wiersma, and Koos Duppen

Phys. Rev. Lett. 66, 2464 (1991) - Published 13 May, 1991

Plasma and Beam Physics

Efficiency enhancement of a plasma-filled backward-wave oscillator by self-induced distributed feedback

M. Botton and Amiram Ron

Phys. Rev. Lett. 66, 2468 (1991) - Published 13 May, 1991

Condensed Matter: Structure, Etc.

Late-time coarsening dynamics in a nematic liquid crystal

Isaac Chuang, Neil Turok, and Bernard Yurke

Phys. Rev. Lett. 66, 2472 (1991) - Published 13 May, 1991

Roughness of crack interfaces

Alex Hansen, Einar L. Hinrichsen, and Stéphane Roux

Phys. Rev. Lett. 66, 2476 (1991) - Published 13 May, 1991

Phenomena due to strain coupling in phase transitions

Simon Marais, Volker Heine, Chris Nex, and Ekhard Salje

Phys. Rev. Lett. 66, 2480 (1991) - Published 13 May, 1991

New dynamical equation for cracks

M. Marder

Phys. Rev. Lett. 66, 2484 (1991) - Published 13 May, 1991

Calorimetric investigation of clustering in ${KTaO}_{3}$ -based compounds

S. Riegel, R. Wengenmayr, G. Weber, and U. T. Höchli

Phys. Rev. Lett. 66, 2488 (1991) - Published 13 May, 1991

Condensed Matter: Electronic Properties, Etc.

Absorption quantum beats of magnetoexcitons in GaAs heterostructures

S. Bar-Ad and I. Bar-Joseph

Phys. Rev. Lett. 66, 2491 (1991) - Published 13 May, 1991

Magnetic x-ray dichroism in gadolinium metal

Paolo Carra, B. N. Harmon, B. T. Thole, M. Altarelli, and G. A. Sawatzky

Phys. Rev. Lett. 66, 2495 (1991) - Published 13 May, 1991

Fano profiles on multiphonon continua in electronic transitions of matrix-isolated NO

M. Chergui, N. Schwentner, and V. Chandrasekharan

Phys. Rev. Lett. 66, 2499 (1991) - Published 13 May, 1991

Response functions of a quantum fractal system: The Wannier-Azbel-Hofstadter problem

B. Douçot and P. C. E. Stamp

Phys. Rev. Lett. 66, 2503 (1991) - Published 13 May, 1991

Vibrating-reed experiments on superconducting suspensions

Jürgen Kober, Anurag Gupta, Pablo Esquinazi, Hans F. Braun, and Ernst Helmut Brandt

Phys. Rev. Lett. 66, 2507 (1991) - Published 13 May, 1991

Ballistic-electron-emission microscopy and spectroscopy of GaP(110)-metal interfaces

M. Prietsch and R. Ludeke

Phys. Rev. Lett. 66, 2511 (1991) - Published 13 May, 1991

Scaling properties of the anisotropic magnetoresistivity of ${Bi}_{2}$ ${Sr}_{2}$ ${CaCu}_{2}$ $O_{8}$ thin films below $T_{c}$

H. Raffy, S. Labdi, O. Laborde, and P. Monceau

Phys. Rev. Lett. 66, 2515 (1991) - Published 13 May, 1991

Theory of ideal metals

Herbert B. Shore and James H. Rose

Phys. Rev. Lett. 66, 2519 (1991) - Published 13 May, 1991

Orientational order in disordered superconductors

John Toner

Phys. Rev. Lett. 66, 2523 (1991) - Published 13 May, 1991

Magnetic circular dichroism in core-level photoemission of localized magnetic systems

Gerrit van der Laan

Phys. Rev. Lett. 66, 2527 (1991) - Published 13 May, 1991

Dynamics of vortices in underdamped Josephson-junction arrays

H. S. J. van der Zant, F. C. Fritschy, T. P. Orlando, and J. E. Mooij

Phys. Rev. Lett. 66, 2531 (1991) - Published 13 May, 1991

Cross-Disciplinary Physics

Lattice-gas automata for coupled reaction-diffusion equations

David Dab, Jean-Pierre Boon, and Yue-Xian Li

Phys. Rev. Lett. 66, 2535 (1991) - Published 13 May, 1991

Oscillations and waves in a reactive lattice-gas automaton

Raymond Kapral, Anna Lawniczak, and Paul Masiar

Phys. Rev. Lett. 66, 2539 (1991) - Published 13 May, 1991

COMMENTS

Comment on ‘‘Path-integral approach to Ising spin-glass dynamics.’’

A. Lusakowski

Phys. Rev. Lett. 66, 2543 (1991) - Published 13 May, 1991

ERRATA

Precision Spectroscopy of High- $L$ , $n = 10$ Rydberg Helium: An Improved Test of Relativistic, Radiative, and Retardation Effects

E. A. Hessels, F. J. Deck, P. W. Arcuni, and S. R. Lundeen

Phys. Rev. Lett. 66, 2544 (1991) - Published 13 May, 1991