نتایج جستجو برای: transition regime
تعداد نتایج: 328639 فیلتر نتایج به سال:
Seepage in a medium packed with particles of variable granular size can be seen in many fields of engineering applications. Due to the relative complex spatial aspect of pore geometry, there are notable differences in the critical parameters of flow transition (Reynolds number and Forchheimer number) between different structures. It is difficult to distinguish the available range of seepage equ...
Motivated by studies on the recurrent properties of animal and human mobility, we introduce a path-dependent random-walk model with long-range memory for which not only the mean-square displacement (MSD) but also the propagator can be obtained exactly in the asymptotic limit. The model consists of a random walker on a lattice, which, at a constant rate, stochastically relocates at a site occupi...
The Dicke model can exhibit quantum phase transition between the normal and superradiant phases when strength of light-matter coupling exceeds ultrastrong-coupling regime. However, it is challenging to observe this in practical systems due limited or finite two-photon ${A}^{2}$ terms. Here we show that by applying a periodic modulation frequency two-level standard strong-coupling regime, an ani...
We propose a method to obtain improved expressions for the diffraction of circular apertures in boundary between near and far field. The is based on an analysis center value pattern derived from Fresnel expression. shown be applied both amplitude, phase, complex apertures, compared propagation simulations. show how these new allow use Fraunhofer approximation at numbers least twice as large con...
A direct insulator-quantum Hall (I-QH) transition corresponds to a crossover/transition from the insulating regime to a high Landau level filling factor ν > 2 QH state. Such a transition has been attracting a great deal of both experimental and theoretical interests. In this study, we present three different two-dimensional electron systems (2DESs) which are in the vicinity of nanoscaled scatte...
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