Université Paris-Sud

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19922026

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

collaborating institutions

Showing 1993Show all

21 papers · 1 filter

cond-mat1993★ 36 cited

Conductance of Aharonov--Bohm Rings: From the Discrete to the Continuous Spectrum Limit

Alex Kamenev, Bertrand Reulet, Helene Bouchiat +1

The dissipative conductance of an array of mesoscopic rings, subject to an a.c. magnetic flux is investigated. The magneto--conductance may change sign between canonical and grand-…

hep-lat1993

Phase Diagram of a Lattice $S U (2) \times S U (2)$ Scalar-Fermion Model Using the Zaragoza Fermions

J. L. Alonso, Ph. Boucaud, F. Lesmes +1

We present a calculation of the phase diagram of a $S U (2) \times S U (2)$ chiral Yukawa model with massless decoupled doublers, using a saddle point approach, both for small and larg…

hep-ph1993★ 41 cited

Soft Photon Production Rate in Resummed Perturbation Theory of High Temperature QCD

R. Baier, S. Peigné, D. Schiff

We calculate the production rate of soft real photons from a hot quark -- gluon plasma using Braaten -- Pisarski's perturbative resummation method. To leading order in the QCD coup…

cond-mat1993★ 11 cited

Phi_0 - Periodic Aharonov-Bohm Oscillations Survive Ensemble Averaging

Alex Kamenev, Yuval Gefen

We have demonstrated that Phi_0 periodic Aharonov--Bohm oscillations measured in a ensemble of rings may survive after ensemble averaging procedure. The central point is the differ…

cond-mat1993★ 72 cited

Frustrated Honeycomb Heisenberg Antiferromagnet: A Schwinger Boson Approach

Ann Mattsson, Per Fröjdh, Torbjörn Einarsson

We analyze the frustrated Heisenberg antiferromagnet defined on a honeycomb lattice using a Schwinger-boson mean-field theory. The spin-wave velocity and the susceptibility are pre…

cond-mat1993★ 9 cited

Single Level Current and Curvature Distributions in Mesoscopic Systems

Alex Kamenev, Daniel Braun

Exact analytic results for single level current and curvature distribution functions are derived in a framework of a $2 \times 2$ random matrix model. Current and curvature are defi…

alg-geom1993★ 168 cited

Conformal blocks and generalized theta functions

Arnaud Beauville, Yves Laszlo

Let M(r) be the moduli space of rank r vector bundles with trivial determinant on a Riemann surface X . This space carries a natural line bundle, the determinant line bundle L . We…

hep-ph1993★ 2 cited

Dynamical Symmetry Breaking In A Nambu-Jona-Lasinio Model And The Vacuum Structure

E. A. Dudas

The vacuum structure for a Nambu-Jona -Lasinio type model is studied using the effective potential approach. The relevant degrees of freedom are taken to be two different sets of s…

hep-lat1993★ 2 cited

Dgsos on DTRS

C. F. Baillie, W. Janke, D. A. Johnston

We perform simulations of a discrete gaussian solid on solid (DGSOS) model on dynamical $ϕ^{3}$ graphs, which is equivalent to coupling the model to 2d quantum gravity, using the clu…

gr-qc1993★ 20 cited

A Noncommutative Extension of Gravity

J. Madore, J. Mourad

The commutative algebra of functions on a manifold is extended to a noncommutative algebra by considering its tensor product with the algebra of nxn complex matrices. Noncommutativ…

hep-th1993★ 6 cited

Optimal Photon Localization

J. Mourad

We show that there is only one operator having some minimal properties enabling it to be a one photon position operator. These proerties are stated, and the solution is shown to be…

hep-ph1993★ 7 cited

Composite Supersymmetric Axion-Dilaton-Dilatino System and the breaking of Supersymmetry

E. A. Dudas

The spontaneous breakdown of the scale, the chiral and the superconformal symmetries for a hidden $S U (N)$ gauge group is studied in an effective lagrangean approach. The relevant l…

cond-mat1993★ 17 cited

Density of states and magnetic susceptibilities on the octagonal tiling

A. Jagannathan

We study electronic properties as a function of the six types of local environments found in the octagonal tiling. The density of states has six characteristic forms, although the…

hep-ph1993★ 16 cited

Coherence and Decoherence in Radiation off Colliding Heavy Ions

Andre Krzywicki

We discuss the kinetics of a disoriented chiral condensate, treated as an open quantum system. We suggest that the problem is analogous to that of a damped harmonic oscillator. Mas…

hep-ph1993★ 34 cited

The heavy fermion damping rate puzzle

S. Peigne, E. Pilon, D. Schiff

: We examine again the problem of the damping rate of a moving heavy fermion in a hot plasma within the resummed perturbative theory of Pisarski and Braaten. The ansatz for its eva…

hep-th1993★ 43 cited

Dilaton, moduli and string/five-brane duality as seen from four dimensions

P. Binetruy

A naive dimensional reduction of the $N = 1, D = 10$ supergravity theory that naturally arises in five-brane models is used to determine the rôle of two fields which are basic ingredie…

chao-dyn1993

Inertial Forms of Navier-Stokes Equations on Sphere

Roger Temam, Shouhong Wang

The Navier--Stokes equations for incompressible flows past a two--dimensional sphere are considered in this article. The existence of an inertial form of the equations is establish…

cond-mat1993★ 469 cited

Elastic Theory of pinned flux lattices

T. Giamarchi, P. Le Doussal

The pinning of flux lattices by weak impurity disorder is studied in the absence of free dislocations using both the gaussian variational method and, to $O (ε = 4 - d)$ , the functional…

nucl-th1993★ 28 cited

Left-Right Asymmetry in $p ˉ p \to π^{-} π^{+}$

George Bathas, W. M. Kloet

Results for d $σ$ /d $Ω$ and $A_{N}$ in the reaction $p ˉ p \to π^{-} π^{+}$ are predicted by a simple quark model. They are compared to recent experimental data from LEAR, as we…

cond-mat1993★ 155 cited

Poisson versus GOE statistics in integrable and non-integrable quantum hamiltonian

Didier Poilblanc, Timothy Ziman, Jean Bellissard +2

We calculate the level statistics by finding the eigenvalue spectrum for a variety of one-dimensional many-body models, namely the Heisenberg chain, the t-J model and the Hubbard m…

cond-mat1993★ 452 cited

Wigner Crystal in One Dimension

H. J. Schulz

A one--dimensional gas of electrons interacting with long--range Coulomb forces ( $V (r) \approx 1/ r$ ) is investigated. The excitation spectrum consists of separate collective charge…