تقرير
Classical particles in the continuum subjected to high density boundary conditions
| العنوان: | Classical particles in the continuum subjected to high density boundary conditions |
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| المؤلفون: | Procacci, Aldo, Yuhjtman, Sergio A. |
| سنة النشر: | 2020 |
| المجموعة: | Mathematics Mathematical Physics |
| مصطلحات موضوعية: | Mathematical Physics, 82B05, 82B21 |
| الوصف: | We consider a continuous system of classical particles confined in a finite region $\Lambda$ of $\mathbb{R}^d$ interacting through a superstable and tempered pair potential in presence of non free boundary conditions. We prove that the thermodynamic limit of the pressure of the system at any fixed inverse temperature $\beta$ and any fixed fugacity $\lambda$ does not depend on boundary conditions produced by particles outside $\Lambda$ whose density may increase sub-linearly with the distance from the origin at a rate which depends on how fast the pair potential decays at large distances. In particular, if the pair potential $v(x-y)$ is of Lennard-Jones type, i.e. it decays as $C/\|x-y\|^{d+p}$ (with $p>0$) where $\|x-y\|$ is the Euclidean distance between $x$ and $y$, then the existence of the thermodynamic limit of the pressure is guaranteed in presence of boundary conditions generated by external particles which may be distributed with a density increasing with the distance $r$ from the origin as $\rho(1+ r^q)$, where $\rho$ is any positive constant (even arbitrarily larger than the density $\rho_0(\beta,\lambda)$ of the system evaluated with free boundary conditions) and $q\le {1\over 2}\min\{1, p\}$. |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2009.07917 |
| رقم الأكسشن: | edsarx.2009.07917 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |