Fractional order phase transition based on Q − Φ criticality of RN-AdS black hole. (14th May 2021)

• Record Type: Journal Article
• Authors: Liu, Fang; Wang, Li-Hua; Zhang, Zi-Zhen; He, Yun
• Is Part Of: Physica scripta. Volume 96:Number 8(2021)
• Publication Date: 2021-05-14
• Subjects: black hole -- phase transition -- thermodynamics; Physics -- Periodicals; 530.05
• DOI: 10.1088/1402-4896/abfde3
• Languages: English
• ISSNs: 0031-8949

Abstract

Abstract: We consider the Q − Φ criticality of RN-AdS black hole in four-dimensional spacetime. Especially, by employing the fractional derivative we reanalyze the order of phase transition at the critical point. By means of this fine-grained classification of phase transition, it is found that at the critical point it is a 4/3-order, but not the second-order phase transition. This result is the same as that obtained in a previous work on the basis of P − V criticality.