التفاصيل البيبلوغرافية
| العنوان: |
Modified Thirring model beyond the excluded-volume approximation |
| المؤلفون: |
Alessandro Campa, Lapo Casetti, Pierfrancesco Di Cintio, Ivan Latella, J Miguel Rubi, Stefano Ruffo |
| بيانات النشر: |
arXiv, 2022. |
| سنة النشر: |
2022 |
| مصطلحات موضوعية: |
Thirring model, Statistics and Probability, Non additive systems, Statistical Mechanics (cond-mat.stat-mech), Phase diagrams, FOS: Physical sciences, Statistical and Nonlinear Physics, Statistics, Probability and Uncertainty, Non additive systems, Thirring model, Condensed Matter - Statistical Mechanics, Settore FIS/03 - Fisica della Materia, Settore FIS/02 - Fisica Teorica, Modelli e Metodi Matematici |
| الوصف: |
Long-range interacting systems may exhibit ensemble inequivalence and can possibly attain equilibrium states under completely open conditions, for which energy, volume and number of particles simultaneously fluctuate. Here we consider a modified version of the Thirring model for self-gravitating systems with attractive and repulsive long-range interactions in which particles are treated as hard spheres in dimension d=1,2,3. Equilibrium states of the model are studied under completely open conditions, in the unconstrained ensemble, by means of both Monte Carlo simulations and analytical methods and are compared with the corresponding states at fixed number of particles, in the isothermal-isobaric ensemble. Our theoretical description is performed for an arbitrary local equation of state, which allows us to examine the system beyond the excluded-volume approximation. The simulations confirm the theoretical prediction of the possible occurrence of first-order phase transitions in the unconstrained ensemble. This work contributes to the understanding of long-range interacting systems exchanging heat, work and matter with the environment.
Comment: 26 pages, 8 figures |
| DOI: |
10.48550/arxiv.2206.04527 |
| URL الوصول: |
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::72298b6260377cf79a07b70dd6d8e942 |
| Rights: |
OPEN |
| رقم الانضمام: |
edsair.doi.dedup.....72298b6260377cf79a07b70dd6d8e942 |
| قاعدة البيانات: |
OpenAIRE |