Implications of new phase transitions approach onto specific black holes

2020 ◽  
Vol 35 (39) ◽  
pp. 2050326
Author(s):  
Abdul Jawad ◽  
Shahid Chaudhary
Keyword(s):  
Black Holes ◽  
Phase Transitions ◽  
Critical Points ◽  
Theoretical Physics ◽  
Open Questions ◽  
Standard Relation ◽  
Classical Gravity ◽  
Quantum Interpretation ◽  
Thermodynamic Phase ◽  
New Phase

Among many open questions in theoretical physics, consistent quantum gravity theory is still a major issue to be solved. Recent major works in phase transitions of black holes (BH) can be helpful for quantum interpretation of classical gravity. We study the new effective method to discuss the thermodynamic phase transitions onto well renowned regular BHs. Ordinary approaches of phase transitions depend upon equation of state and it is impossible to obtain all critical points with ordinary approaches. This study is derived from the slope of temperature versus entropy and it provides the possibility of finding all the critical points analytically. This technique provides pressure, which is different from standard relation of pressure and independent of other thermodynamical relations. We discuss some issues in ordinary methods and provide an easy approach to investigate the critical behavior of thermodynamical quantities. We find out the phase transitions points and horizon radii of non-physical range for BHs. We also use the new thermodynamical relations to briefly study well-known Joule–Thomson (JT) effect on regular BH.

scholarly journals CAN BLACK HOLES DECAY TO NAKED SINGULARITIES?

2001 ◽  
Vol 10 (06) ◽  
pp. 807-809 ◽  
Author(s):  
SAURYA DAS ◽  
J. GEGENBERG ◽  
V. HUSAIN
Keyword(s):  
Black Holes ◽  
Phase Transitions ◽  
Scalar Field ◽  
Thermodynamic Properties ◽  
De Sitter ◽  
Naked Singularities ◽  
Thermodynamic Phase

We investigate thermodynamic properties of two types of asymptotically anti-de Sitter spacetimes: black holes and singular scalar field spacetimes. We describe the possibility that thermodynamic phase transitions can transform one spacetime into another, suggesting that black holes can radiate to naked singularities.

scholarly journals Analogy between Thermodynamic Phase Transitions and Creeping Flows in Rectangular Cavities

Symmetry ◽  
2020 ◽  
Vol 12 (11) ◽  
pp. 1859
Author(s):  
Miron Kaufman ◽  
Petru S. Fodor
Keyword(s):  
Phase Transitions ◽  
Fixed Points ◽  
Critical Points ◽  
Moving Wall ◽  
Slip Boundary ◽  
Analytical Work ◽  
Creeping Flows ◽  
First Order Transition ◽  
Thermodynamic Phase ◽  
Fluid Flow Modeling

An analogy is found between the streamline function corresponding to Stokes flows in rectangular cavities and the thermodynamics of phase transitions and critical points. In a rectangular cavity flow, with no-slip boundary conditions at the walls, the corners are fixed points. The corners defined by a stationary and a moving wall, are found to be analogous to a thermodynamic first-order transition point. In contrast, the corners defined by two stationary walls correspond to thermodynamic critical points. Here, flow structures, also known as Moffatt eddies, form and act as stagnation regions where mixing is impeded. A third stationary point occurs in the middle region of the channel and it is analogous to a high temperature thermodynamic fixed point. The numerical results of the fluid flow modeling are correlated with analytical work in the proximity of the fixed points.

scholarly journals Fingerprinting the Fractional Order Phase Transitions in AdS Black Holes

2021 ◽  
Vol 8 ◽  
Author(s):  
Mohamed Chabab ◽  
Samir Iraoui
Keyword(s):  
Phase Transition ◽  
Black Holes ◽  
Black Hole ◽  
Phase Transitions ◽  
Detailed Analysis ◽  
Fractional Order ◽  
Critical Points ◽  
Order Phase Transition ◽  
Ads Black Holes ◽  
Kerr Black Holes

In this paper, we have extended and deepened the study on fractional order phase transition (FPT) of a charged AdS black hole. We have carried out a detailed analysis of FPT for several AdS black hole prototypes: black hole surrounded by quintessence background, 5D Gauss-Bonnet, D dimensional RN-AdS BH, and lastly Kerr black holes. We have shown that the 4/3 order FPT at critical points holds for the first three black holes systems, while for Kerr black holes, the fractional order is rather 1/3. These results suggest two remarkable features: Firstly 4/3 order phase transition can be assumed for asymptotically AdS black holes spherical solutions; secondly the fractional order is not universal and can be affected by the geometric symmetry.

Some features of phase transitions in solutions with two critical points

1996 ◽  
Vol 166 (6) ◽  
pp. 683-685 ◽  
Author(s):  
K.V. Kovalenko ◽  
S.V. Krivokhizha ◽  
Immanuil L. Fabelinskii ◽  
L.L. Chaikov
Keyword(s):  
Phase Transitions ◽  
Critical Points

1,2-propanediol and 1,3-propanediol homogeneous nucleation rates and phase transitions in the new phase critical embryos

2000 ◽  
Vol 112 (22) ◽  
pp. 9917-9928 ◽  
Author(s):  
M. P. Anisimov ◽  
J. A. Koropchak ◽  
A. G. Nasibulin ◽  
L. V. Timoshina
Keyword(s):  
Phase Transitions ◽  
Homogeneous Nucleation ◽  
New Phase

Dielectric and Thermal Studies on New Phase Transitions of CsHSO4

1981 ◽  
Vol 50 (10) ◽  
pp. 3187-3188 ◽  
Author(s):  
Masaru Komukae ◽  
Toshio Osaka ◽  
Yasuharu Makita ◽  
Tohru Ozaki ◽  
Kazuyuki Itoh ◽  
...  
Keyword(s):  
Phase Transitions ◽  
Thermal Studies ◽  
New Phase

scholarly journals Similarities Between the AdS/CFT Correspondence and the Binding Problem

2019 ◽  
Author(s):  
Michael Elliott
Keyword(s):  
Black Holes ◽  
Subjective Experience ◽  
Condensed Matter ◽  
Boundary Surface ◽  
Theoretical Physics ◽  
Binding Problem ◽  
Physical Systems ◽  
Combine Information ◽  
The Brain

The binding problem refers to the puzzle of how the brain combines objects’ properties such as motion, color, shape, location, sound, etc., from diverse regions of the brain and forms a unified subjective experience. Holographic physical systems, recently discovered darlings of theoretical physics, began with research into black holes but have since evolved into the study of condensed matter systems in the laboratory like superfluids and superconductors. A primary example is the AdS/CFT correspondence. A recent conjecture of this correspondence suggests that holographic systems combine information from across a boundary surface, sort out the simplest description of said information, and, in turn, use it to determine the geometry of spacetime itself in the interior - a kind of geometric hologram. Although we would never tend to think of these two processes as related, in this paper we point out ten similarities between the two and show that holographic systems are the only physical systems that match the subjective and computational characteristics of the binding problem.

scholarly journals KRITIK SALIM AL-JAbI ATAS HERMENEUTIKA MUHAMMAD SYAHRUR

el-'Umdah ◽  
2018 ◽  
Vol 1 (2) ◽  
pp. 145-167
Author(s):  
Syamsul Wathani
Keyword(s):  
Critical Points ◽  
Historical Analysis ◽  
Interpretation Studies ◽  
New Phase

Criticism in interpretation studies shows a new phase of the interpretation of the Qur’an in contemporary academic studies of the Qur’an. Muhammad Syahrur is a fgure who became the object of criticism for some of his renewed ideas in contemporary studies of the Qur’an which are packaged in hermeneutics. Mahir al-Munanjad passed his book al-iskâ liyat Qirâ ah and Salim al-Jabi, al-Qirâ ‘at al-Mu’â shirat. This article focuses on Al-Jabi thinking with analysis on critical points. Al-Jabi made anBacademic criticism of Syahrur’s study, especially in the pattern of the approach used by Syahrur. Al-Jabi offers textual-contextual criticisms of the Shahrur approach patterned on language and thematic-historical analysis, which are often not in the context of the verses of the Qur’an.

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