Zobrazeno 1 - 10
of 203
pro vyhledávání: '"Bettelheim E"'
Publikováno v:
Phys. Rev. B 86, 165324 (2012)
We revisit the problem of the plateau transition in the integer quantum Hall effect. Here we develop an analytical approach for this transition, based on the theory of conformal restriction. This is a mathematical theory that was recently developed w
Externí odkaz:
http://arxiv.org/abs/1202.4573
Publikováno v:
J. Phys. A: Math. Theor. (2011) 44: 28. 282001
We formulate the problem of the Fermi Edge Singularity in non-equilibrium states of a Fermi gas as a matrix Riemann-Hilbert problem with an integrable kernel. This formulation is the most suitable for studying the singular behavior at each edge of no
Externí odkaz:
http://arxiv.org/abs/1103.4236
Publikováno v:
J.Phys.A42:135201,2009
We develop a hydrodynamic description of the classical Calogero-Sutherland liquid: a Calogero-Sutherland model with an infinite number of particles and a non-vanishing density of particles. The hydrodynamic equations, being written for the density an
Externí odkaz:
http://arxiv.org/abs/0810.5327
Autor:
Nahum, A., Bettelheim, E.
Publikováno v:
Phys. Rev. B 78, 184510 (2008)
In many situations a BCS-type superconductor will develop an imbalance between the populations of the holelike and electronlike spectral branches. This imbalance suppresses the gap. It has been noted by Gal'perin et al. [Sov. Phys. JETP 54, 1126 (198
Externí odkaz:
http://arxiv.org/abs/0807.1352
Publikováno v:
J. Phys. A: Math. Theor. 41 (2008) 392003
We present new nonlinear differential equations for spacetime correlation functions of Fermi gas in one spatial dimension. The correlation functions we consider describe non-stationary processes out of equilibrium. The equations we obtain are integra
Externí odkaz:
http://arxiv.org/abs/0804.2272
Publikováno v:
J. Phys. A: Math. Theor. 40 (2007)
We consider critical curves -- conformally invariant curves that appear at critical points of two-dimensional statistical mechanical systems. We show how to describe these curves in terms of the Coulomb gas formalism of conformal field theory (CFT).
Externí odkaz:
http://arxiv.org/abs/cond-mat/0610550
Publikováno v:
Phys. Rev. Lett. 97, 246402 (2006)
A semiclassical wave-packet propagating in a dissipationless Fermi gas inevitably enters a "gradient catastrophe" regime, where an initially smooth front develops large gradients and undergoes a dramatic shock wave phenomenon. The non-linear effects
Externí odkaz:
http://arxiv.org/abs/cond-mat/0607453
Publikováno v:
Phys.Rev.Lett.95:170602,2005
Fractal geometry of critical curves appearing in 2D critical systems is characterized by their harmonic measure. For systems described by conformal field theories with central charge $c\leqslant 1$, scaling exponents of harmonic measure have been com
Externí odkaz:
http://arxiv.org/abs/hep-th/0507115
Publikováno v:
Phys.Rev.Lett. 95 (2005) 251601
The Stochastic Loewner evolution is a recent tool in the study of two-dimensional critical systems. We extend this approach to the case of critical systems with continuous symmetries, such as SU(2) Wess-Zumino-Witten models, where domain walls carry
Externí odkaz:
http://arxiv.org/abs/hep-th/0503013
Publikováno v:
Nucl.Phys. B700 (2004) 521-532
We continue the analysis of the spectral curve of the normal random matrix ensemble, introduced in an earlier paper. Evolution of the full quantum curve is given in terms of compatibility equations of independent flows. The semiclassical limit of the
Externí odkaz:
http://arxiv.org/abs/hep-th/0407017