Generalizing Bogoliubov–Zubarev Theorem to Account for Pressure Fluctuations: Application to Relativistic Gas

The problem of pressure fluctuations in the thermal equilibrium state of some objects is discussed, its solution being suggested via generalizing the Bogoliubov–Zubarev theorem. This theorem relates the thermodynamic pressure with the Hamilton function and its derivatives describing the ob...

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Main Authors: Yuri G. Rudoy, Yuri P. Rybakov
Format: Article
Language:English
Published: MDPI AG 2019-03-01
Series:Particles
Subjects:
Online Access:https://www.mdpi.com/2571-712X/2/1/11
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author Yuri G. Rudoy
Yuri P. Rybakov
author_facet Yuri G. Rudoy
Yuri P. Rybakov
author_sort Yuri G. Rudoy
collection DOAJ
description The problem of pressure fluctuations in the thermal equilibrium state of some objects is discussed, its solution being suggested via generalizing the Bogoliubov–Zubarev theorem. This theorem relates the thermodynamic pressure with the Hamilton function and its derivatives describing the object in question. It is shown that unlike to other thermodynamic quantities (e.g., the energy or the volume) the pressure fluctuations are described not only by a purely thermodynamic quantity (namely, the corresponding thermodynamic susceptibility) but also by some non-thermodynamic quantities. The attempt is made to apply these results to the relativistic ideal gases, with some numerical results being valid for the limiting ultra-relativistic or high-temperature case.
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spelling doaj.art-d27daecf7f144c0f84ca5baaf26c20722022-12-22T01:48:23ZengMDPI AGParticles2571-712X2019-03-012115016510.3390/particles2010011particles2010011Generalizing Bogoliubov–Zubarev Theorem to Account for Pressure Fluctuations: Application to Relativistic GasYuri G. Rudoy0Yuri P. Rybakov1Institute for Physical Research and Technologies, RUDN University, Miklukho-Maklay Str. 6, Moscow 117198, RussiaInstitute for Physical Research and Technologies, RUDN University, Miklukho-Maklay Str. 6, Moscow 117198, RussiaThe problem of pressure fluctuations in the thermal equilibrium state of some objects is discussed, its solution being suggested via generalizing the Bogoliubov–Zubarev theorem. This theorem relates the thermodynamic pressure with the Hamilton function and its derivatives describing the object in question. It is shown that unlike to other thermodynamic quantities (e.g., the energy or the volume) the pressure fluctuations are described not only by a purely thermodynamic quantity (namely, the corresponding thermodynamic susceptibility) but also by some non-thermodynamic quantities. The attempt is made to apply these results to the relativistic ideal gases, with some numerical results being valid for the limiting ultra-relativistic or high-temperature case.https://www.mdpi.com/2571-712X/2/1/11Gibbs equilibrium statistical mechanicsBogoliubov’s quasi-averagespressure fluctuationsrelativistic ideal gas
spellingShingle Yuri G. Rudoy
Yuri P. Rybakov
Generalizing Bogoliubov–Zubarev Theorem to Account for Pressure Fluctuations: Application to Relativistic Gas
Particles
Gibbs equilibrium statistical mechanics
Bogoliubov’s quasi-averages
pressure fluctuations
relativistic ideal gas
title Generalizing Bogoliubov–Zubarev Theorem to Account for Pressure Fluctuations: Application to Relativistic Gas
title_full Generalizing Bogoliubov–Zubarev Theorem to Account for Pressure Fluctuations: Application to Relativistic Gas
title_fullStr Generalizing Bogoliubov–Zubarev Theorem to Account for Pressure Fluctuations: Application to Relativistic Gas
title_full_unstemmed Generalizing Bogoliubov–Zubarev Theorem to Account for Pressure Fluctuations: Application to Relativistic Gas
title_short Generalizing Bogoliubov–Zubarev Theorem to Account for Pressure Fluctuations: Application to Relativistic Gas
title_sort generalizing bogoliubov zubarev theorem to account for pressure fluctuations application to relativistic gas
topic Gibbs equilibrium statistical mechanics
Bogoliubov’s quasi-averages
pressure fluctuations
relativistic ideal gas
url https://www.mdpi.com/2571-712X/2/1/11
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