Zobrazeno 1 - 10
of 38
pro vyhledávání: '"Nezhadhaghighi, M. Ghasemi"'
Autor:
Nezhadhaghighi, M. Ghasemi
The Stochastic Loewner equation, introduced by Schramm, gives us a powerful way to study and classify critical random curves and interfaces in two-dimensional statistical mechanics. New kind of stochastic Loewner equation, called fractional stochasti
Externí odkaz:
http://arxiv.org/abs/2106.05869
In this paper the mono-layer graphene at the charge neutrality point is considered whithin Thomas-Fermi-Dirac theory, treating inhomogeneous external potentials and electron-electron interactions on equal footing. We present some general consideratio
Externí odkaz:
http://arxiv.org/abs/1609.07458
Publikováno v:
Phys. Rev. E 95, 032112 (2017)
We characterize the carrier density profile of the ground state of graphene in the presence of particle-particle interaction and random charged impurity for zero gate voltage. We provide detailed analysis on the resulting spatially inhomogeneous elec
Externí odkaz:
http://arxiv.org/abs/1609.07096
Publikováno v:
Journal of Applied Physics 122, 085302 (2017)
In this paper, we propose crossing statistics and its generalization, as a new framework to characterize the anisotropy in a 2D field, e.g. height on a surface, extendable to higher dimensions. By measuring $\nu^+$, the number of up-crossing (crossin
Externí odkaz:
http://arxiv.org/abs/1508.01409
In this paper, we propose a disordered heterostructure in which the distribution of refractive index of one of its constituents follows a L\'evy-type distribution characterized by the exponent $\alpha$. For the normal and oblique incidences, the effe
Externí odkaz:
http://arxiv.org/abs/1507.04149
Publikováno v:
Phys. Rev. B 90, 205438 (2014)
We study the time evolution of the entanglement entropy in the short and long-range coupled harmonic oscillators that have well-defined continuum limit field theories. We first introduce a method to calculate the entanglement evolution in generic cou
Externí odkaz:
http://arxiv.org/abs/1408.3744
Publikováno v:
Phys. Rev. B 88, 045426 (2013)
We study different aspects of quantum von Neumann and R\'enyi entanglement entropy of one dimensional long-range harmonic oscillators that can be described by well-defined non-local field theories. We show that the entanglement entropy of one interva
Externí odkaz:
http://arxiv.org/abs/1306.0982
Publikováno v:
EPL, 100 (2012) 60011
We study the Von Neumann and R\'enyi entanglement entropy of long-range harmonic oscillators (LRHO) by both theoretical and numerical means. We show that the entanglement entropy in massless harmonic oscillators increases logarithmically with the sub
Externí odkaz:
http://arxiv.org/abs/1209.1883
Publikováno v:
Phys. Rev. E 84, 011134 (2011)
We study the first passage time processes of anomalous diffusion on self similar curves in two dimensions. The scaling properties of the mean square displacement and mean first passage time of the ballistic motion, fractional Brownian motion and subo
Externí odkaz:
http://arxiv.org/abs/1102.2966
Publikováno v:
Phys. Rev. E 83, 021122 (2011)
We study the fractal properties of the 2d discrete scale invariant (DSI) rough surfaces. The contour lines of these rough surfaces show clear DSI. In the appropriate limit the DSI surfaces converge to the scale invariant rough surfaces. The fractal p
Externí odkaz:
http://arxiv.org/abs/1011.1118