Cosmological constant is a conserved charge / D. V. Chernyavsky, K. Hajian
Уровень набора: Classical and Quantum Gravity, Scientific JournalЯзык: английский.Страна: .Резюме или реферат: Cosmological constant can always be considered as the on-shell value of a top form in gravitational theories. The top form is the field strength of a gauge field, and the theory enjoys a gauge symmetry. We show that cosmological constant is the charge of the global part of the gauge symmetry, and is conserved irrespective of the dynamics of the metric and other fields. In addition, we introduce its conjugate chemical potential, and prove the generalized first law of thermodynamics which includes variation of cosmological constant as a conserved charge. We discuss how our new term in the first law is related to the volume–pressure term. In parallel with the seminal Wald entropy, this analysis suggests that pressure can also be considered as a conserved charge..Примечания о наличии в документе библиографии/указателя: [References: 47 tit.].Аудитория: .Тематика: электронный ресурс | труды учёных ТПУ | черные дыры | термодинамика | космологическая постоянная | термодинамические свойства | Dark matter | inflation | supergravity | reheating Ресурсы он-лайн:Щелкните здесь для доступа в онлайнTitle screen
[References: 47 tit.]
Cosmological constant can always be considered as the on-shell value of a top form in gravitational theories. The top form is the field strength of a gauge field, and the theory enjoys a gauge symmetry. We show that cosmological constant is the charge of the global part of the gauge symmetry, and is conserved irrespective of the dynamics of the metric and other fields. In addition, we introduce its conjugate chemical potential, and prove the generalized first law of thermodynamics which includes variation of cosmological constant as a conserved charge. We discuss how our new term in the first law is related to the volume–pressure term. In parallel with the seminal Wald entropy, this analysis suggests that pressure can also be considered as a conserved charge.
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