Zobrazeno 1 - 10
of 327
pro vyhledávání: '"Fortin, J Y"'
We study the variation of the mean cross section with the density of the samples in the quantum scattering of a particle by a disordered target. The target consists of a set of pointlike scatterers, each having an equal probability of being anywhere
Externí odkaz:
http://arxiv.org/abs/1908.10798
Autor:
Turban, L., Fortin, J. -Y.
Publikováno v:
J. Phys. A 51 (2018) 145001
Diffusion-coagulation can be simply described by a dynamic where particles perform a random walk on a lattice and coalesce with probability unity when meeting on the same site. Such processes display non-equilibrium properties with strong fluctuation
Externí odkaz:
http://arxiv.org/abs/1711.01248
Publikováno v:
Phys. Rev. Lett. 97, 237203 (2006)
The LiHo$_x$Y$_{1-x}$F$_4$ magnetic material in a transverse magnetic field $B_{x}\hat x$ perpendicular to the Ising spin direction has long been used to study tunable quantum phase transitions in a random disordered system. We show that the $B_{x}-$
Externí odkaz:
http://arxiv.org/abs/cond-mat/0608145
We study motion of domain wall defects in a fully frustrated Josephson-unction ladder system, driven by small applied currents. For small system sizes, the energy barrier E_B to the defect motion is computed analytically via symmetry and topological
Externí odkaz:
http://arxiv.org/abs/cond-mat/0512081
de Haas-van Alphen oscillation spectrum is studied for an idealized two-dimensional Fermi liquid with two parabolic bands in the case of canonical (fixed number of quasiparticles) and grand canonical (fixed chemical potential) ensembles. As already r
Externí odkaz:
http://arxiv.org/abs/cond-mat/0406596
Autor:
Bramwell, S. T., Christensen, K., Fortin, J. -Y., Holdsworth, P. C. W., Jensen, H. J., Lise, S., López, J. M., Nicodemi, M., Pinton, J. -F., Sellitto, M.
Reply to the comment, cond-mat/0209398 by by N.W. Watkins, S.C. Chapman, and G. Rowlands
Comment: To appear In Physical Review Letters
Comment: To appear In Physical Review Letters
Externí odkaz:
http://arxiv.org/abs/cond-mat/0209416
Autor:
Bramwell, S. T., Christensen, K., Fortin, J. -Y., Holdsworth, P. C. W., Jensen, H. J., Lise, S., López, J. M., Nicodemi, M., Pinton, J. -F., Sellitto, M.
We reply to the comment on our published paper `` Universal Fluctuations in Correlated Systems'',Phys. Rev. Lett. Vol; 84, p3744 (2000), by B. Zheng and S. Trimper, cond-mat/0109003. We argue that their results confirm our conjecture, that the probab
Externí odkaz:
http://arxiv.org/abs/cond-mat/0109107
Publikováno v:
Phys. Rev. B 63, 224504 (2001)
We have used two-fluid dynamics to study the discrepancy between the work of Thouless, Ao and Niu (TAN) and that of Iordanskii. In TAN no transverse force on a vortex due to normal fluid flow was found, whereas the earlier work found a transverse for
Externí odkaz:
http://arxiv.org/abs/cond-mat/0101297
Autor:
Bramwell, S. T., Fortin, J. -Y., Holdsworth, P. C. W., Peysson, S., Pinton, J. -F., Portelli, B., Sellitto, M.
Publikováno v:
Phys. Rev. E 63 (2001) 041106.
We study the probability density function for the fluctuations of the magnetic order parameter in the low temperature phase of the XY model of finite size. In two-dimensions this system is critical over the whole of the low temperature phase. It is s
Externí odkaz:
http://arxiv.org/abs/cond-mat/0008093
Autor:
Bramwell, S. T., Christensen, K., Fortin, J. -Y., Holdsworth, P. C. W., Jensen, H. J., Lise, S., López, J., Nicodemi, M., Pinton, J. -F., Sellitto, M.
Publikováno v:
Phys.Rev.Lett.84:3744-3747,2000
The probability density function (PDF) of a global measure in a large class of highly correlated systems has been suggested to be of the same functional form. Here, we identify the analytical form of the PDF of one such measure, the order parameter i
Externí odkaz:
http://arxiv.org/abs/cond-mat/9912255