Zobrazeno 1 - 10
of 198
pro vyhledávání: '"Najafi, M. N."'
We propose integral representations and analytical solutions for the propagator of the $1+1$ dimensional Salpeter Hamiltonian, describing a relativistic quantum particle with no spin. We explore the exact Green function and an exact solution for a gi
Externí odkaz:
http://arxiv.org/abs/2407.00096
We introduce a novel field theory representation for the Sum of Powers of Principal Minors (SPPM), a mathematical construct with profound implications in quantum mechanics and statistical physics. We begin by establishing a Berezin integral formulati
Externí odkaz:
http://arxiv.org/abs/2403.09874
Autor:
Tang, Yaoyue, Gharari, Fatemeh, Arias-Calluari, Karina, Alonso-Marroquin, Fernando, Najafi, M. N.
This article reveals a specific category of solutions for the $1+1$ Variable Order (VO) nonlinear fractional Fokker-Planck equations. These solutions are formulated using VO $q$-Gaussian functions, granting them significant versatility in their appli
Externí odkaz:
http://arxiv.org/abs/2309.04206
Recently it was shown that self-organized criticality is an important ingredient of the dynamics of cumulus clouds (Physical Review E, 103(5), p.052106, 2021). Here we introduce a new algorithm to simulate cumulus clouds in two-dimensional square lat
Externí odkaz:
http://arxiv.org/abs/2212.02580
In this study, we experimentally study the dried pattern droplets of coffee with and without sugar. We statistically analyze the rough surface formed after the stain becomes dried. The amount of sugar is controlled by the mass $m$. Along with the for
Externí odkaz:
http://arxiv.org/abs/2211.12132
This paper considers a sandpile model subjected to a sinusoidal external drive with the time period $T$. We develop a theoretical model for the Green function in a large $T$ limit, which predicts that the avalanches are anisotropic and elongated in t
Externí odkaz:
http://arxiv.org/abs/2207.14562
Motivated by a recent observation on the self-organized criticality of cumulus clouds (Phys. Rev E 103, 052106, 2021) we study their connection to self-similar rough surfaces, in which $f\equiv \log I$ plays the role of the main field, where $I$ is t
Externí odkaz:
http://arxiv.org/abs/2204.13783
Publikováno v:
Phys. Rev. B 105, 245109 (2022)
The R\'enyi (Shannon) entropy, i.e. $Re_{\alpha}(Sh)$, of the ground state of quantum systems in local bases normally show a volume-law behavior. For a subsystem of quantum chains at critical point there is an extra logarithmic subleading term with a
Externí odkaz:
http://arxiv.org/abs/2203.13124
Autor:
Masoomy, H., Najafi, M. N.
The problem of betweenness centrality remains a fundamental unsolved problem in complex networks. After a pioneering work by Barthelemy, it has been well-accepted that the maximal betweenness-degree ($b$-$k$) exponent for scale-free (SF) networks is
Externí odkaz:
http://arxiv.org/abs/2112.07698
This paper is devoted to a phenomenological study of the earthquakes in central Alborz, Iran. Using three observational quantities, namely weight function, quality factor, and velocity model in this region, we develop a phenomenological dissipative s
Externí odkaz:
http://arxiv.org/abs/2111.06261