Europhysics Letters

Volume 63 / No 5 (September 2003)

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General

Questioning the quark model. Strong interaction, gravitation and time arrows. An approach to asymptotic freedom p. 635

G. Basini and S. Capozziello

Published online: 01 November 2003

DOI: https://doi.org/10.1209/epl/i2003-00575-8

Multidimensional solitons in periodic potentials p. 642

B. B. Baizakov, B. A. Malomed and M. Salerno

Published online: 01 November 2003

DOI: https://doi.org/10.1209/epl/i2003-00579-4

Superfluids in non-Riemannian spacetime background p. 649

L. C. Garcia de Andrade

Published online: 01 November 2003

DOI: https://doi.org/10.1209/epl/i2003-00577-6

The Pioneer riddle, the quantum vacuum and the variation of the light velocity p. 653

A. F. Rañada

Published online: 01 November 2003

DOI: https://doi.org/10.1209/epl/i2003-00587-x

Structure of the local-field factor of the 2D electron fluid. Possible evidence for correlated scattering of electron pairs p. 660

M. W. C. Dharma-wardana and F. Perrot

Published online: 01 November 2003

DOI: https://doi.org/10.1209/epl/i2003-00593-6

Suppressing temporal and spatio-temporal chaos by multiple weak resonant excitations: Application to arrays of chaotic coupled oscillators p. 667

R. Chacón, V. Preciado and V. Tereshko

Published online: 01 November 2003

DOI: https://doi.org/10.1209/epl/i2003-00582-9

Tailoring symmetry groups using external alternate fields p. 674

I. Junier and J. Kurchan

Published online: 01 November 2003

DOI: https://doi.org/10.1209/epl/i2003-00583-2

High-resolution imaging of a soft-X-ray laser beam by color centers excitation in lithium fluoride crystals p. 681

G. Tomassetti, A. Ritucci, A. Reale, L. Palladino, L. Reale, L. Arrizza, G. Baldacchini, F. Bonfigli, F. Flora, L. Mezi et al. (5 more)

Published online: 01 November 2003

DOI: https://doi.org/10.1209/epl/i2003-00588-3

Nuclear Physics

Extraction of radioactive positive ions across the surface of superfluid helium: A new method to produce cold radioactive nuclear beams p. 687

W. X. Huang, P. Dendooven, K. Gloos, N. Takahashi, J. P. Pekola and J. Äystö

Published online: 01 November 2003

DOI: https://doi.org/10.1209/epl/i2003-00576-1

Electromagnetism, optics, acoustics, heat transfer, classical mechanics, and fluid dynamics

Sub-milliradiant divergence soft-X-ray laser by active plasma waveguiding in -pinch capillary discharge p. 694

A. Ritucci, G. Tomassetti, A. Reale, L. Palladino, L. Reale, F. Flora, L. Mezi, S. V. Kukhlevsky, A. Faenov, T. Pikuz et al. (2 more)

Published online: 01 November 2003

DOI: https://doi.org/10.1209/epl/i2003-00571-0

Enhanced energy of parallel fractures in nacre-like composite materials p. 701

K. Okumura

Published online: 01 November 2003

DOI: https://doi.org/10.1209/epl/i2003-00578-y

Conformal dynamics of precursors to fracture p. 708

F. Barra, M. Herrera and I. Procaccia

Published online: 01 November 2003

DOI: https://doi.org/10.1209/epl/i2003-00591-8

Putting hydrodynamic interactions to work: Tagged-particle separation p. 715

J. L. Iguain and J. Kurchan

Published online: 01 November 2003

DOI: https://doi.org/10.1209/epl/i2003-00572-5

Condensed matter: electronic structure, electrical, magnetic, and optical properties

Antiferromagnetism and single-particle properties in the two-dimensional half-filled Hubbard model: Slater vs. Mott-Heisenberg p. 722

K. Borejsza and N. Dupuis

Published online: 01 November 2003

DOI: https://doi.org/10.1209/epl/i2003-00584-7

Probing electron confinement in ultrathin metal films: From spin-polarized quantum-well states to surface resonances p. 729

D. H. Yu and M. Donath

Published online: 01 November 2003

DOI: https://doi.org/10.1209/epl/i2003-00586-5

Scaling approach to the phase diagram of quantum Hall systems p. 736

M. O. Goerbig and C. Morais Smith

Published online: 01 November 2003

DOI: https://doi.org/10.1209/epl/i2003-00585-0

Possible high-temperature superconductivity in hole-doped p. 743

A. K. Verma, P. Modak, D. M. Gaitonde, R. S. Rao, B. K. Godwal and L. C. Gupta

Published online: 01 November 2003

DOI: https://doi.org/10.1209/epl/i2003-00592-1

Two dynamic exponents in the resistive transition of fully frustrated Josephson-junction arrays p. 750

E. Granato and D. Domínguez

Published online: 01 November 2003

DOI: https://doi.org/10.1209/epl/i2003-00581-4

: A new narrow-band spin-gap material p. 757

T. Masuda, A. Zheludev, H. Kageyama and A. N. Vasiliev

Published online: 01 November 2003

DOI: https://doi.org/10.1209/epl/i2003-00467-y

Energy spectrum of the molecular magnet p. 764

T. J. Burns and J. Oitmaa

Published online: 01 November 2003

DOI: https://doi.org/10.1209/epl/i2003-00574-3

Overdamped interlayer exchange coupling and disorder-dominated magnetoresistance in superlattices p. 771

P. Padhan, R. C. Budhani and R. P. S. M. Lobo

Published online: 01 November 2003

DOI: https://doi.org/10.1209/epl/i2003-00580-y

Effect of physical aging on the low-frequency vibrational density of states of a glassy polymer p. 778

E. Duval, L. Saviot, L. David, S. Etienne and J. F. Jal

Published online: 01 November 2003

DOI: https://doi.org/10.1209/epl/i2003-00573-x

Comment on “New criteria for bosonic behavior of excitons” by M. Combescot and C. Tanguy p. 785

S. Rombouts, D. Van Neck and L. Pollet

Published online: 01 November 2003

DOI: https://doi.org/10.1209/epl/i2003-00589-8

Reply to the Comment by S. Rombouts et al. on “New criteria for bosonic behaviour of excitons” p. 787

M. Combescot and C. Tanguy

Published online: 01 November 2003

DOI: https://doi.org/10.1209/epl/i2003-00590-3

Comment on “Drift without flux: Brownian walker with a space-dependent diffusion coefficient” by P. Lançon et al. p. 789

J. Bławzdziewicz and S. Bhattacharya

Published online: 01 November 2003

DOI: https://doi.org/10.1209/epl/i2003-00494-8