نتایج جستجو برای: free field
تعداد نتایج: 1262393 فیلتر نتایج به سال:
We prove that cluster observables of level-sets the Gaussian free field on hypercubic lattice $\mathbb{Z}^d$, $d\geq3$, are analytic whole off-critical regime $\mathbb{R}\setminus\{h_*\}$. This result concerns in particular percolation density function $\theta(h)$ and (truncated) susceptibility $\chi(h)$. As an important step towards proof, we show exponential decay probability for capacity a f...
In this study, waves instability in free electron laser with background plasma, under the influence of self-electric and self-magnetic fields, are analyzed. A dispersion relation in the Raman regime for free electron laser with a helical wiggler magnetic field and an axial magnetic field derived in which all possible wave modes can have unstable couplings with each other. This dispersion relati...
in this thesis our aim is to construct vector field in r3 for which the corresponding one-dimensional maps have certain discontinuities. two kinds of vector fields are considered, the first the lorenz vector field, and the second originally introced here. the latter have chaotic behavior and motivate a class of one-parameter families of maps which have positive lyapunov exponents for an open in...
بررسی اثر خود میدانهای مغناطیسی و الکتریکی بر برهمکنش لیزر الکترون آزاد در رژیم رامان به علت وجود دانسیته بالا و انرژی پایین الکترونها از اهمیت زیادی برخوردار است اخیرا جفت شدگی بین امواج در لیزر الکترون آزاد در حضور میدان های مغناطیسی ویگلر پیچشی یک بعدی و محوری مطالعه و خصوصیات آن بررسی شده جفت شدگیهای جدیدی بدست آمده است در این پروژه خود میدان الکتریکی باریکه نسبیتی که از معادله پواسون و خود...
A new approach to massive integrable models is considered. It allows one to find symmetry algebras which define the spaces of local operators and to get general integral representations for form-factors in the SU(2) Thirring and Sine-Gordon models. July, 93 † On leave of absence from L.D. Landau Institute for Theoretical Physics, Kosygina 2, Moscow, Russia ∗ e-mail address: [email protected]...
Rényi entropies Sq are useful measures of quantum entanglement; they can be calculated from traces of the reduced density matrix raised to power q, with q ≥ 0. For (d + 1)dimensional conformal field theories, the Rényi entropies across S may be extracted from the thermal partition functions of these theories on either (d+1)-dimensional de Sitter space or R×H, where H is the d-dimensional hyperb...
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