• LETTERS
  • General Physics
  • Elementary Particles and Fields
  • Nuclear Physics
  • Atomic, Molecular, and Optical Physics
  • Nonlinear Dynamics, Fluid Dynamics, Classical Optics, Etc.
  • Plasma and Beam Physics
  • Condensed Matter: Structure, Etc.
  • Condensed Matter: Electronic Properties, Etc.
• COMMENTS
• ERRATA

•	Space-time as a causal set Luca Bombelli, Joohan Lee, David Meyer, and Rafael D. Sorkin pp. 521-524 [View   PDF (723 kB) ]

•	Relativistic, many-particle Lagrangean for electromagnetic interactions R. A. Moore, T. C. Scott, and M. B. Monagan pp. 525-527 [View   PDF (546 kB) ]

•	Simple discrete symmetries in phenomenologically viable E6 superstring models Manuel Drees and Xerxes Tata pp. 528-531 [View   PDF (752 kB) ]

•	Operator regularization of Green’s functions D. G. McKeon and T. N. Sherry pp. 532-534 [View   PDF (400 kB) ]

•	First observation of a near-harmonic vibrational nucleus A. Aprahamian, D. S. Brenner, R. F. Casten, R. L. Gill, and A. Piotrowski pp. 535-538 [View   PDF (542 kB) ]

•	Exact tricritical exponents for polymers at the FTHETA point in two dimensions Bertrand Duplantier and Hubert Saleur pp. 539-542 [View   PDF (606 kB) ]

•	Squeezing of spontaneous emission in a laser J. Gea-Banacloche pp. 543-546 [View   PDF (575 kB) ]

•	Single-mode operation of a high-power, step-tunable gyrotron K. E. Kreischer and R. J. Temkin pp. 547-550 [View   PDF (587 kB) ]

•	Chaotic behavior and period doubling in plasmas P. Y. Cheung and A. Y. Wong pp. 551-554 [View   PDF (602 kB) ]

•	Wetting phenomena of binary liquid mixtures on chemically altered substrates Douglas J. Durian and Carl Franck pp. 555-558 [View   PDF (576 kB)  See Also: Erratum]

•	Role of multiple scattering in x-ray photoelectron spectroscopy and Auger-electron diffraction in crystals William F. Egelhoff pp. 559-562 [View   PDF (612 kB)  See Also: Erratum]

•	An inference of high atom densities in solid tritium for nuclear magnetic resonance measurements James R. Gaines, James D. Sater, Evelyn M. Fearon, P. C. Souers, Fred E. McMurphy, and Evan R. Mapoles pp. 563-566 [View   PDF (622 kB) ]

•	Phonon ringing and anharmonicity effects in core spectra A. Mansour and S. E. Schnatterly pp. 567-569 [View   PDF (461 kB) ]

•	Ab initio determination of a structural phase transition temperature K. M. Rabe and J. D. Joannopoulos pp. 570-573 [View   PDF (531 kB) ]

•	Mode anharmonicity in molecular crystals studied by piezomodulated Raman spectrosocpy K. M. White and C. J. Eckhardt pp. 574-577 [View   PDF (542 kB) ]

•	Spin localization in Si:P—direct evidence from 31P NMR H. Alloul and P. Dellouve pp. 578-581 [View   PDF (620 kB) ]

•	Two-dimensional open-orbit edge states: A new type of quantum oscillation M. Ya. Azbel and P. M. Chaikin pp. 582-585 [View   PDF (570 kB) ]

•	Nature of the Griffiths phase A. J. Bray pp. 586-589 [View   PDF (608 kB) ]

•	New configuration-coordinate model for the ground, excited, and metastable states of EL2 in GaAs Yasunori Mochizuki and Toshiaki Ikoma pp. 590-593 [View   PDF (665 kB) ]

•	Test for low-Q, ‘‘infrared’’ spin-fluctuation effects in heavy fermions and 3He P. C. Stamp pp. 594-596 [View   PDF (437 kB) ]

•	Optical pair interactions in the four-wave mixing spectrum of Nd3+-doped β’’-Na-alumina S. C. Rand, J. F. Lam, R. S. Turley, R. A. McFarlane, and O. M. Stafsudd pp. 597-600 [View   PDF (568 kB) ]

•	Comment on ‘‘Excitonic coupling in GaAs/GaAlAs quantum wells in an electric field’’ Gerrit E. Bauer and Tsuneya Ando pp. 601 [View   PDF (161 kB) ]

•	Viña Iet al.P reply L. Vina, R. T. Collins, E. E. Mendez, and W. I. Wang pp. 602 [View   PDF (52 kB) ]

•	Raman scattering from fractal structures T. Keyes and T. Ohtsuki pp. 603 [View   PDF (153 kB) ]

•	Boukenter Iet al.P reply A. Boukenter, B. Champagnon, E. Duval, and J. Serughetti pp. 604 [View   PDF (87 kB) ]

•	Comment on ‘‘Signature of g boson in the interacting-boson model from g-factor variations’’ Thomas D. Cohen pp. 605 [View   PDF (166 kB) ]

•	Comment on ‘‘Large intensity fluctuations for wave propagation in random media’’ C. A. Condat pp. 606 [View   PDF (152 kB) ]

•	Necessity of three or more generations for calculable Dirac neutrino masses in E6 superstring models Ernest Ma pp. 607 [View   PDF (140 kB) ]

•	X-Ray Scattering from Sodium-Doped Polyacetylene: Incommensurate-Commensurate and Order-Disorder Transformations M. Winokur, Y. B. Moon, A. J. Heeger, J. Barker, D. C. Bott, and H. Shirakawa pp. 608 [View   PDF (28 kB) ]

•	Direct Subpicosecond Measurement of Carrier Mobility of Photoexcited Electrons in Gallium Arsenide M. C. Nuss, D. H. Auston, and F. Capasso pp. 608 [View   PDF (28 kB) ]