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279 papers · 1 filter

hep-ex2003★ 14 cited

Spectral functions from hadronic tau decays and QCD

Michel Davier

Hadronic decays of the lepton provide a clean environment to study hadron dynamics in an energy regime dominated by resonances. The interesting information is captured in the s…

nlin.CD2003★ 12 cited

Quantum and Arithmetical Chaos

Eugene Bogomolny

The lectures are centered around three selected topics of quantum chaos: the Selberg trace formula, the two-point spectral correlation functions of Riemann zeta function zeros, and…

math-ph2003★ 87 cited

Sharp regularity results for many-electron wave functions

Søren Fournais, Maria Hoffmann-Ostenhof, Thomas Hoffmann-Ostenhof +1

We show that electronic wave functions Psi of atoms and molecules have a representation Psi=F*phi, where F is an explicit universal factor, locally Lipschitz, and independent of th…

hep-ph2003★ 3 cited

Phenomenological Aspects of Heterotic Effective Models At One Loop

Y. Mambrini

We provide a study of the phenomenology of orbifold compactifications of the heterotic string within the context of supergravity effective theories. Our investigation focuses on th…

cond-mat.stat-mech2003★ 13 cited

Statistical mechanics of random graphs

Zdzislaw Burda, Jerzy Jurkiewicz, Andre Krzywicki

We discuss various aspects of the statistical formulation of the theory of random graphs, with emphasis on results obtained in a series of our recent publications.

cond-mat.str-el2003★ 55 cited

Quantum Spins and Quasiperiodicity: a real space renormalization group approach

A. Jagannathan

We study the antiferromagnetic spin-1/2 Heisenberg model on a two-dimensional bipartite quasiperiodic structure, the octagonal tiling -- the aperiodic equivalent of the square latt…

cond-mat.mtrl-sci2003★ 77 cited

Controlled normal and inverse magnetoresistance and current-driven magnetization switching in magnetic nanopillars

M. AlHajDarwish, H. Kurt, S. Urazhdin +4

Combining pairs of ferromagnetic metals with different signs of scattering anisotropies, let us independently invert the magnetoresistance and the direction of current-driven switc…

physics.comp-ph2003★ 12 cited

Applications of the wave packet method to resonant transmission and reflection gratings

Andrei G. Borisov, Sergei V. Shabanov

Scattering of femtosecond laser pulses on resonant transmission and reflection gratings made of dispersive (Drude metals) and dielectric materials is studied by a time-domain numer…

math-ph2003★ 4 cited

From repeated to continuous quantum interactions

S. Attal, Y. Pautrat

We consider the general physical situation of a quantum system $\H_0$ interacting with a chain of exterior systems $\bigotimes_\N \H$, one after the other, during a small interval…

hep-ph2003★ 35 cited

Relating Incomplete Data and Incomplete Theory

Pierre Binetruy, G. L. Kane, Brent D. Nelson +3

Assuming string theorists will not soon provide a compelling case for the primary theory underlying particle physics, the field will proceed as it has historically: with data stimu…

cond-mat.mes-hall2003★ 20 cited

Electron transport in Si/SiGe modulation-doped heterostructures using Monte Carlo simulation

F. Monsef, P. Dollfus, S. Galdin-Retailleau +2

The electron transport in the two-dimensional gas formed in tensile-strained Si1-xGex/Si/Si1-xGex heterostructures is investigated using Monte Carlo simulation. At first the electr…

hep-ph2003★ 6 cited

Remarks on transient photon production in heavy ion collisions

E. Fraga, F. Gelis, D. Schiff

In this note, we discuss the derivation of a formula that has been used in the literature in order to compute the number of photons emitted by a hot or dense system during a finite…

nucl-th2003★ 57 cited

Gluons, tadpoles, and color neutrality in a two-flavor color superconductor

Dennis D. Dietrich, Dirk H. Rischke

Considering cold, dense quark matter with two massless quark flavors, we demonstrate how, in a self-consistent calculation in the framework of QCD, the condensation of Cooper pairs…

hep-th2003★ 11 cited

The QCD vacuum as a disordered medium: A simplified model for the QCD Dirac operator

Antonio M. Garcia-Garcia, James C. Osborn

We model the QCD Dirac operator as a power-law random banded matrix (RBM) with the appropriate chiral symmetry. Our motivation is the form of the Dirac operator in a basis of insta…

cond-mat.supr-con2003★ 136 cited

Spontaneous supercurrent induced by ferromagnetic pi-junctions

A. Bauer, J. Bentner, M. Aprili +4

We present magnetization measurements of mesoscopic superconducting niobium loops containing a ferromagnetic (PdNi) pi-junction. The loops are prepared on top of the active area of…

cond-mat.mes-hall2003★ 30 cited

Weak localization in multiterminal networks of diffusive wires

Christophe Texier, Gilles Montambaux

We study the quantum transport through networks of diffusive wires connected to reservoirs in the Landauer-Büttiker formalism. The elements of the conductance matrix are computed b…

hep-ph2003★ 33 cited

Modified instanton profile effects from lattice Green functions

Ph. Boucaud, F. De Soto, A. Le Yaouanc +4

We trace here instantons through the analysis of pure Yang-Mills gluon Green functions in the Landau gauge for a window of IR momenta (0.4 GeV GeV). We present lattice…

hep-ph2003★ 14 cited

Direct and Indirect Detection of Dark Matter in Heterotic Orbifold Models

Pierre Binetruy, Yann Mambrini, Emmanuel Nezri

We study the neutralino dark matter phenomenology in the context of effective field theories derived from the weakly--coupled heterotic string. We consider in particular direct det…

hep-ph2003★ 1 cited

Physics of the linear collider

Francois Richard

This presentation intends to illustrate the specific capabilities of an ee sub-TeV collider to provide answers on the basic issues in physics: origin of mass, hierarchy of…

gr-qc2003★ 21 cited

Space-time correlations in inflationary spectra, a wave packet analysis

David Campo, Renaud Parentani

The inflationary mechanism of mode amplification predicts that the state of each mode with a given wave vector is correlated to that of its partner mode with the opposite vector. T…

cond-mat.mes-hall2003★ 17 cited

Effect of interactions on the noise of chiral Luttinger liquid systems

B. Trauzettel, P. Roche, D. C. Glattli +1

We analyze the current noise, generated at a quantum point contact in fractional quantum Hall edge state devices, using the chiral Luttinger liquid model with an impurity and the a…

cond-mat.stat-mech2003★ 10 cited

Properties of atypical graphs from negative complexities

Olivier Rivoire

The one-step replica symmetry breaking cavity method is proposed as a new tool to investigate large deviations in random graph ensembles. The procedure hinges on a general connecti…

cond-mat.mes-hall2003★ 115 cited

A one-channel conductor in an ohmic environment: mapping to a TLL and full counting statistics

Ines Safi, Hubert Saleur

It is shown that a one-channel mesoscopic conductor in an ohmic environment can be mapped to the problem of a backscattering impurity in a Tomonaga-Luttinger liquid (TLL). This all…

cond-mat.stat-mech2003★ 183 cited

Pinning and Sliding of Driven Elastic Systems: from Domain Walls to Charge Density Waves

Serguei Brazovskii, Thomas Nattermann

The review is devoted to the theory of collective and it local pinning effects in various disordered non-linear driven systems. Although the emphasis is put on charge and spin dens…