Zobrazeno 1 - 10
of 118
pro vyhledávání: '"Villamaina, D."'
In order to respond to environmental signals, cells often use small molecular circuits to transmit information about their surroundings. Recently, motivated by concrete examples in signaling and gene regulation, a body of work has focused on the prop
Externí odkaz:
http://arxiv.org/abs/1911.03032
Publikováno v:
Phys. Rev. E 89, 042105 (2014)
We study the behavior of a moving wall in contact with a particle gas and subjected to an external force. We compare the fluctuations of the system observed in the microcanonical and canonical ensembles, at varying the number of particles. Static and
Externí odkaz:
http://arxiv.org/abs/1403.2896
A massive intruder in a homogeneously driven granular fluid, in dilute configurations, performs a memory-less Brownian motion with drag and temperature simply related to the average density and temperature of the fluid. At volume fraction $\sim 10-50
Externí odkaz:
http://arxiv.org/abs/1201.1781
Publikováno v:
J. Chem. Phys. 136, 014704 (2012)
Velocity and density structure factors are measured over a hydrodynamic range of scales in a horizontal quasi-2d fluidized granular experiment, with packing fractions $\phi\in[10%,40%]$. The fluidization is realized by vertically vibrating a rough pl
Externí odkaz:
http://arxiv.org/abs/1112.2753
Publikováno v:
Am. J. Phys 79, 777 (2011)
The energy of a finite system thermally connected to a thermal reservoir may fluctuate, while the temperature is a constant representing a thermodynamic property of the reservoir. The finite system can also be used as a thermometer for the reservoir.
Externí odkaz:
http://arxiv.org/abs/1106.4848
Publikováno v:
J. Stat. Mech. (2011) L01002
We study how the Einstein relation between spontaneous fluctuations and the response to an external perturbation holds in the absence of currents, for the comb model and the elastic single-file, which are examples of systems with subdiffusive transpo
Externí odkaz:
http://arxiv.org/abs/1101.4097
Publikováno v:
J. Stat. Mech. (2009) P07024
We discuss the well known Einstein and the Kubo Fluctuation Dissipation Relations (FDRs) in the wider framework of a generalized FDR for systems with a stationary probability distribution. A multi-variate linear Langevin model, which includes dynamic
Externí odkaz:
http://arxiv.org/abs/0907.2791
Publikováno v:
J. Stat. Mech. (2008) L10001
We study a gas of hard rods on a ring, driven by an external thermostat, with either elastic or inelastic collisions, which exhibits sub-diffusive behavior $ \sim t^{1/2}$. We show the validity of the usual Fluctuation-Dissipation (FD) relation
Externí odkaz:
http://arxiv.org/abs/0810.1608
Akademický článek
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Publikováno v:
Vito Volterra PhD School, Universita' "Sapienza", Dipartimento di Fisica, Roma, 9 Giugno, 2010
info:cnr-pdr/source/autori:Gradenigo G.; Sarracino A.; Villamaina D.; Puglisi A.; Vulpiani A./congresso_nome:Vito Volterra PhD School/congresso_luogo:Universita' "Sapienza", Dipartimento di Fisica, Roma/congresso_data:9 Giugno, 2010/anno:2010/pagina_da:/pagina_a:/intervallo_pagine
info:cnr-pdr/source/autori:Gradenigo G.; Sarracino A.; Villamaina D.; Puglisi A.; Vulpiani A./congresso_nome:Vito Volterra PhD School/congresso_luogo:Universita' "Sapienza", Dipartimento di Fisica, Roma/congresso_data:9 Giugno, 2010/anno:2010/pagina_da:/pagina_a:/intervallo_pagine
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=cnr_________::64e1a07ac0cad6374d93ac4cd749f92d
http://www.cnr.it/prodotto/i/131650
http://www.cnr.it/prodotto/i/131650