Transport with noise in dilute gases: Effect of Langevin thermostat on transport coefficients
Fuente:
arXiv
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| Autori principali: | , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866908597933309952 |
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| author | Alés, Alejandro Cerato, Juan Ignacio Marchioni, Leandro Hoyuelos, Miguel |
| author_facet | Alés, Alejandro Cerato, Juan Ignacio Marchioni, Leandro Hoyuelos, Miguel |
| contents | In dilute gases, transport properties such as the thermal conductivity, self-diffusion, and viscosity are significantly affected by interatomic collisions, which are determined by the potential form. This study explores these transport properties in the presence of a Langevin thermostat in systems where particles interact through various potentials, including soft-core and hard-core potentials, both with and without an attractive region. Using molecular dynamics simulations and a theoretical approach based on an analogy with an electric circuit (Ohm's law), we derived and compared the transport coefficients across these interatomic potentials for different couplings with the thermostat. The transport coefficients were obtained by considering the thermostat as a resistance in a series circuit. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_14745 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Transport with noise in dilute gases: Effect of Langevin thermostat on transport coefficients Alés, Alejandro Cerato, Juan Ignacio Marchioni, Leandro Hoyuelos, Miguel Statistical Mechanics In dilute gases, transport properties such as the thermal conductivity, self-diffusion, and viscosity are significantly affected by interatomic collisions, which are determined by the potential form. This study explores these transport properties in the presence of a Langevin thermostat in systems where particles interact through various potentials, including soft-core and hard-core potentials, both with and without an attractive region. Using molecular dynamics simulations and a theoretical approach based on an analogy with an electric circuit (Ohm's law), we derived and compared the transport coefficients across these interatomic potentials for different couplings with the thermostat. The transport coefficients were obtained by considering the thermostat as a resistance in a series circuit. |
| title | Transport with noise in dilute gases: Effect of Langevin thermostat on transport coefficients |
| topic | Statistical Mechanics |
| url | https://arxiv.org/abs/2510.14745 |