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Physical Review Letters

Volume 70, Issue 7

15 February 1993

Browse Issues:

LETTERS

General Physics

Cluster algorithm for vertex models

Hans Gerd Evertz, Gideon Lana, and Mihai Marcu

Phys. Rev. Lett. 70, 875 (1993) - Published 15 February, 1993

Bargmann invariant and the geometry of the Güoy effect

R. Simon and N. Mukunda

Phys. Rev. Lett. 70, 880 (1993) - Published 15 February, 1993

Elementary Particles and Fields

Driving operators relevant: A feature of the Chern-Simons interaction

Wei Chen and Miao Li

Phys. Rev. Lett. 70, 884 (1993) - Published 15 February, 1993

Consequences of a fourth generation in the standard model

Tran N. Truong

Phys. Rev. Lett. 70, 888 (1993) - Published 15 February, 1993

Measurement of the branching ratio for the decay η→ $μ^{+}$ $μ^{-}$

R. S. Kessler, R. Abegg, A. Baldisseri, A. Boudard, W. Briscoe, B. Fabbro, M. Garçon, E. A. Hermes, W. W. Jacobs, L. Lytkin, B. Mayer, B. M. K. Nefkens, C. Niebuhr, A. M. Petrov, J. Poitou, J. Saudinos, B. Tippens, E. Tomasi-Gustafsson, A. van der Schaaf, W. T. H. van Oers, S. E. Vigdor, M. Wang, and D. White

Phys. Rev. Lett. 70, 892 (1993) - Published 15 February, 1993

How transparent are hadrons to pions?

B. Blättel, G. Baym, L. L. Frankfurt, and M. Strikman

Phys. Rev. Lett. 70, 896 (1993) - Published 15 February, 1993

Polarization of $Ω^{-}$ hyperons produced in 800 GeV proton-beryllium collisions

K. B. Luk, C. James, R. Rameika, H. T. Diehl, S. Teige, G. B. Thomson, Y. Zou, P. M. Ho, M. J. Longo, A. Nguyen, J. Duryea, G. Guglielmo, K. Heller, K. Johns, and K. Thorne

Phys. Rev. Lett. 70, 900 (1993) - Published 15 February, 1993

Nuclear Physics

Investigation of pion absorption in heavy-ion induced subthreshold $π^{0}$ production

R. S. Mayer et al.

Phys. Rev. Lett. 70, 904 (1993) - Published 15 February, 1993

Atomic, Molecular, and Optical Physics

Novel technique for producing ultracold ${}^{4}{He}$ beams

Eric S. Meyer, John C. Mester, and Isaac F. Silvera

Phys. Rev. Lett. 70, 908 (1993) - Published 15 February, 1993

Subnarrow linewidth, hole, and split in micromaser spectrum

Ning Lu

Phys. Rev. Lett. 70, 912 (1993) - Published 15 February, 1993

Nonlinear Dynamics, Fluid Dynamics, Classical Optics, Etc.

Theory of fluctuations in pseudointegrable systems

Debabrata Biswas and Sudeshna Sinha

Phys. Rev. Lett. 70, 916 (1993) - Published 15 February, 1993

Spatial solitons in a self-focusing semiconductor gain medium

G. Khitrova, H. M. Gibbs, Y. Kawamura, H. Iwamura, T. Ikegami, J. E. Sipe, and L. Ming

Phys. Rev. Lett. 70, 920 (1993) - Published 15 February, 1993

Experimental study of an injection-locked gyrotron backward-wave oscillator

C. S. Kou, S. H. Chen, L. R. Barnett, H. Y. Chen, and K. R. Chu

Phys. Rev. Lett. 70, 924 (1993) - Published 15 February, 1993

Plasma and Beam Physics

Operation of a compact free-electron laser in the millimeter-wave region with a bunched electron beam

F. Ciocci, R. Bartolini, A. Doria, G. P. Gallerano, E. Giovenale, M. F. Kimmitt, G. Messina, and A. Renieri

Phys. Rev. Lett. 70, 928 (1993) - Published 15 February, 1993

Transverse phase-space dynamics of mismatched charged-particle beams

Courtlandt L. Bohn

Phys. Rev. Lett. 70, 932 (1993) - Published 15 February, 1993

Dimensionally similar discharges in the W7-AS stellarator

U. Stroth, G. Kühner, H. Maassberg, and H. Ringler

Phys. Rev. Lett. 70, 936 (1993) - Published 15 February, 1993

Cyclotron harmonic lines in magnetic fluctuations of spiralling electrons in plasmas

G. Golubyatnikov and R. L. Stenzel

Phys. Rev. Lett. 70, 940 (1993) - Published 15 February, 1993

Experiments on energy redistribution by thermal radiation in cylindrical cavities

C. Stöckl and G. D. Tsakiris

Phys. Rev. Lett. 70, 943 (1993) - Published 15 February, 1993

Condensed Matter: Structure, Etc.

Neutron diffraction study of liquid krypton and the interatomic interaction

F. Barocchi, P. Chieux, R. Magli, L. Reatto, and M. Tau

Phys. Rev. Lett. 70, 947 (1993) - Published 15 February, 1993

New scaling form for the collapsed polymer phase

A. L. Owczarek, T. Prellberg, and R. Brak

Phys. Rev. Lett. 70, 951 (1993) - Published 15 February, 1993

Phase separation, density fluctuation, and critical dynamics of $N_{2}$ in aerogel

A. P. Y. Wong, S. B. Kim, W. I. Goldburg, and M. H. W. Chan

Phys. Rev. Lett. 70, 954 (1993) - Published 15 February, 1993

Surface crystallization of liquid normal-alkanes

X. Z. Wu, E. B. Sirota, S. K. Sinha, B. M. Ocko, and M. Deutsch

Phys. Rev. Lett. 70, 958 (1993) - Published 15 February, 1993

Barrierless dimer breaking at semiconductor surfaces by chlorine atoms

Takahisa Ohno

Phys. Rev. Lett. 70, 962 (1993) - Published 15 February, 1993

Growth morphology and the equilibrium shape: The role of ‘‘surfactants’’ in Ge/Si island formation

D. J. Eaglesham, F. C. Unterwald, and D. C. Jacobson

Phys. Rev. Lett. 70, 966 (1993) - Published 15 February, 1993

Condensed Matter: Electronic Properties, Etc.

Soliton pair charge storage in doped polyene molecules: Evidence from photoelectron spectroscopy studies

M. Lögdlund, P. Dannetun, S. Stafström, W. R. Salaneck, M. G. Ramsey, C. W. Spangler, C. Fredriksson, and J. L. Brédas

Phys. Rev. Lett. 70, 970 (1993) - Published 15 February, 1993

Logarithmic corrections to scaling near the metal-insulator transition

T. R. Kirkpatrick and D. Belitz

Phys. Rev. Lett. 70, 974 (1993) - Published 15 February, 1993

Flux quantization and pairing in one-dimensional copper-oxide models

A. Sudbø, C. M. Varma, T. Giamarchi, E. B. Stechel, and R. T. Scalettar

Phys. Rev. Lett. 70, 978 (1993) - Published 15 February, 1993

Scattering theory, transfer matrices, and Anderson localization

J. T. Chalker and M. Bernhardt

Phys. Rev. Lett. 70, 982 (1993) - Published 15 February, 1993

Ensemble studies of nonlinear conductance fluctuations in phase coherent samples

D. C. Ralph, K. S. Ralls, and R. A. Buhrman

Phys. Rev. Lett. 70, 986 (1993) - Published 15 February, 1993

Coulomb blockade of tunneling into a quasi-one-dimensional wire

K. A. Matveev and L. I. Glazman

Phys. Rev. Lett. 70, 990 (1993) - Published 15 February, 1993

Measurement of the even-odd free-energy difference of an isolated superconductor

P. Lafarge, P. Joyez, D. Esteve, C. Urbina, and M. H. Devoret

Phys. Rev. Lett. 70, 994 (1993) - Published 15 February, 1993

Observation of free flux flow at high dissipation levels in ${YBa}_{2}$ ${Cu}_{3}$ $O_{7 - δ}$ epitaxial films

Milind N. Kunchur, David K. Christen, and Julia M. Phillips

Phys. Rev. Lett. 70, 998 (1993) - Published 15 February, 1993

Low frequency spin dynamics in undoped and Sr-doped ${La}_{2}$ ${CuO}_{4}$

T. Imai, C. P. Slichter, K. Yoshimura, and K. Kosuge

Phys. Rev. Lett. 70, 1002 (1993) - Published 15 February, 1993

Asymmetry of the spin reorientation transition in ultrathin Fe films and wedges grown on Ag(100)

Z. Q. Qiu, J. Pearson, and S. D. Bader

Phys. Rev. Lett. 70, 1006 (1993) - Published 15 February, 1993

Towards a quantum theory of polarization in ferroelectrics: The case of ${KNbO}_{3}$

R. Resta, M. Posternak, and A. Baldereschi

Phys. Rev. Lett. 70, 1010 (1993) - Published 15 February, 1993

Investigation of femtosecond electronic dephasing in CdSe nanocrystals using quantum-beat-suppressed photon echoes

R. W. Schoenlein, D. M. Mittleman, J. J. Shiang, A. P. Alivisatos, and C. V. Shank

Phys. Rev. Lett. 70, 1014 (1993) - Published 15 February, 1993

Photoluminescence up-conversion induced by intersubband absorption in asymmetric coupled quantum wells

P. Vagos, P. Boucaud, F. H. Julien, J.-M. Lourtioz, and R. Planel

Phys. Rev. Lett. 70, 1018 (1993) - Published 15 February, 1993

No evidence for enhanced (d,d) fusion under ( ${CD}_{4}$ $)_{n}^{+}$ cluster impact

M. Fallavier, R. Kirsch, J.-C. Poizat, J. Remillieux, H. Rothard, and J.-P. Thomas

Phys. Rev. Lett. 70, 1022 (1993) - Published 15 February, 1993

Probing the microscopic corrugation of liquid surfaces with gas-liquid collisions

Mackenzie E. King, Gilbert M. Nathanson, Mark Hanning-Lee, and Timothy K. Minton

Phys. Rev. Lett. 70, 1026 (1993) - Published 15 February, 1993

COMMENTS

Comment on ‘‘Delayed relaxation by surfactant action in highly strained III-V semiconductor epitaxial layers’’

C. W. Snyder and B. G. Orr

Phys. Rev. Lett. 70, 1030 (1993) - Published 15 February, 1993

Grandjean and Massies reply

N. Grandjean and J. Massies

Phys. Rev. Lett. 70, 1031 (1993) - Published 15 February, 1993

ERRATA

Optical Activity of Selenium: A Nearly First-Principles Calculation

Hua Zhong, Zachary H. Levine, Douglas C. Allan, and John W. Wilkins

Phys. Rev. Lett. 70, 1032 (1993) - Published 15 February, 1993

Hardness and Softness in the Ab Initio Study of Polyatomic Systems

Marcelo Galván, Arnaldo Dal Pino, Jr., and John D. Joannopoulos

Phys. Rev. Lett. 70, 1032 (1993) - Published 15 February, 1993