Consistent description of fluctuations requires negative temperatures

Autor: Angelo Vulpiani, Andrea Puglisi, Luca Cerino

Publikováno v: Journal of statistical mechanics 2015 (2015): P12002. doi:10.1088/1742-5468/2015/12/P12002
info:cnr-pdr/source/autori:Luca Cerino (1); Andrea Puglisi (2); Angelo Vulpiani (1)/titolo:A consistent description of fluctuations requires negative temperatures/doi:10.1088%2F1742-5468%2F2015%2F12%2FP12002/rivista:Journal of statistical mechanics/anno:2015/pagina_da:P12002/pagina_a:/intervallo_pagine:P12002/volume:2015

We review two definitions of temperature in statistical mechanics, $T_B$ and $T_G$, corresponding to two possible definitions of entropy, $S_B$ and $S_G$, known as surface and volume entropy respectively. We restrict our attention to a class of syste

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5a13f3ab333fab3fdf5d9a42f3250725
http://arxiv.org/abs/1509.07369

Dynamical symmetries of Markov processes with multiplicative white noise

Autor: Leticia F. Cugliandolo, Camille Aron, Daniel G. Barci, Gustavo S. Lozano, Zochil González Arenas

We analyse various properties of stochastic Markov processes with multiplicative white noise. We take a single-variable problem as a simple example, and we later extend the analysis to the Landau-Lifshitz-Gilbert equation for the stochastic dynamics

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7610ba2ca945e166a846e4447cdd3ab8
http://arxiv.org/abs/1412.7564

Fluctuations theory of random walks in dimension 1 Local limit theorems for reflected random walks on N

Autor: Essifi, Rim

Publikováno v: Probabilités [math.PR]. Université François Rabelais-Tours, 2014. Français

The purpose of this thesis is to establish some local limit theorems for reflected random walks on N. The fluctuations theory and the Wiener-Hopf factorization play a crucial role. We will develop in the first part a classical approach that we will a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::a77bb4737f269d4ed23e024c97b799f0
https://tel.archives-ouvertes.fr/tel-01003859/file/these_Essifi_mars_2014.pdf

Time-resolved dynamics of granular matter by random laser emission

Autor: Viola Folli, Claudio Conti, Neda Ghofraniha, Andrea Puglisi, Luca Leuzzi

Publikováno v: Scientific reports (Nature Publishing Group) 3 (2013): art_n_2251. doi:10.1038/srep02251
info:cnr-pdr/source/autori:Viola Folli (1,2); Neda Ghofraniha (2,3); Andrea Puglisi (1,2); Luca Leuzzi (1,3); Claudio Conti (1,2)/titolo:Time-resolved dynamics of granular matter by random laser emission/doi:10.1038%2Fsrep02251/rivista:Scientific reports (Nature Publishing Group)/anno:2013/pagina_da:art_n_2251/pagina_a:/intervallo_pagine:art_n_2251/volume:3
Scientific Reports

Because of the huge commercial importance of granular systems, the second-most used material in industry after water, intersecting the industry in multiple trades, like pharmacy and agriculture, fundamental research on grain-like materials has receiv

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fe521c8d218307ccf6df4232cb92cfd6
https://doi.org/10.1038/srep02251

Noise-induced resonance-like phenomena in InP crystals embedded in fluctuating electric fields

Autor: Bernardo Spagnolo, Nicola Pizzolato, D. Persano Adorno

Publikováno v: Journal of Statistical Mechanics: Theory and Experiment. 2016:054021

We explore and discuss the complex electron dynamics inside a low-doped n-type InP bulk embedded in a sub-THz electric field, fluctuating for the superimposition of an external source of Gaussian correlated noise. The results presented in this study

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4345fbc482536a2c6309a0d094011afc
https://doi.org/10.1088/1742-5468/2016/05/054021