A microscopic theory of photonucleation: Density functional approach to the properties of a fluid of two-level atoms, a part of which is excited

We use the density functional method to examine the properties of the nonuniform (two-phase) fluid of twolevel
 atoms, a part of which is excited. From the analysis of the equation of state of a gas of two-level atoms,
 a part of which is excited, the following density functional of...

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Published in:Condensed Matter Physics
Date:2006
Main Authors: Derzhko, O., Myhal, V.
Format: Article
Language:English
Published: Інститут фізики конденсованих систем НАН України 2006
Online Access:https://nasplib.isofts.kiev.ua/handle/123456789/121450
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Journal Title:Digital Library of Periodicals of National Academy of Sciences of Ukraine
Cite this:A microscopic theory of photonucleation: Density functional approach to the properties of a fluid of two-level atoms, a part of which is excited / O. Derzhko, V. Myhal // Condensed Matter Physics. — 2006. — Т. 9, № 4(48). — С. 703–708. — Бібліогр.: 24 назв. — англ.

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Digital Library of Periodicals of National Academy of Sciences of Ukraine
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Summary:We use the density functional method to examine the properties of the nonuniform (two-phase) fluid of twolevel
 atoms, a part of which is excited. From the analysis of the equation of state of a gas of two-level atoms,
 a part of which is excited, the following density functional of the grand thermodynamical potential emerges width (here ΩCS[ρ(r)] is the Carnahan-Starling term, σ is the atom radius, v = 4/3πσ³, c₁ is the concentration of
 excited atoms, c₀ + c₁ = 1, E₁ − E₀ is the excitation energy and a is the dimensionless parameter which
 characterizes the atom). We use this expres Ми використовуємо метод функцiоналу густини для дослiдження властивостей неоднорiдного (двофазного) плину дворiвневих атомiв, частина з яких збуджена. На основi аналiзу рiвняння стану газу
 дворiвневих атомiв, частина з яких збуджена, виникає наступний функцiонал густини великого термодинамiчного потенцiалу, (тут ΩCS[ρ(r)] – доданок Карнагана-Старлiнга, σ – радiус атома, v = 4/3πσ³, c₁ – концентрацiя збуджених атомiв, c₀ + c₁ = 1, E₁ − E₀ – енергiя збудження i a – безрозмiрний параметр, який характеризує атом). Ми використовуємо цей вираз для обчислення нуклеацiйного бар’єру для фазового
 переходу пари в рiдину за наявностi збуджених атомiв.
ISSN:1607-324X