scholarly journals Solid-liquid phase transition and heat engine in an asymptotically flat Schwarzschild black hole via the Rényi extended phase space approach

2021 ◽  
Vol 104 (6) ◽  
Author(s):  
Chatchai Promsiri ◽  
Ekapong Hirunsirisawat ◽  
Watchara Liewrian
Keyword(s):  
Phase Transition ◽  
Black Hole ◽  
Heat Engine ◽  
Extended Phase Space ◽  
Schwarzschild Black Hole ◽  
Extended Phase ◽  
Liquid Phase Transition ◽  
Asymptotically Flat ◽  
Solid Liquid ◽  
Space Approach

scholarly journals Effects of quantum corrections on the criticality and efficiency of black holes surrounded by a perfect fluid

2019 ◽  
Vol 79 (11) ◽  
Author(s):  
V. B. Bezerra ◽  
I. P. Lobo ◽  
J. P. Morais Graça ◽  
Luis C. N. Santos
Keyword(s):  
Black Holes ◽  
Black Hole ◽  
Perfect Fluid ◽  
Quantum Correction ◽  
Heat Engine ◽  
State Parameter ◽  
Quantum Corrections ◽  
Extended Phase Space ◽  
Schwarzschild Black Hole ◽  
Extended Phase

AbstractWe study some properties of the extended phase space of a quantum-corrected Schwarzschild black hole surrounded by a perfect fluid. In particular we demonstrate that, due to the quantum correction, there exist first and second order phase transitions for a certain range of the state parameter of the perfect fluid, and we explicitly analyze some cases. Besides that, we describe the efficiency of this system as a heat engine and the effect of quantum corrections for different surrounding fluids.

scholarly journals Hayward black hole heat engine efficiency in anti-de Sitter space

2021 ◽  
pp. 2150108
Author(s):  
Sen Guo ◽  
Ya Ling Huang ◽  
Ke Jiang He ◽  
Guo Ping Li
Keyword(s):  
Black Hole ◽  
Phase Space ◽  
Magnetic Charge ◽  
Heat Engine ◽  
Extended Phase Space ◽  
De Sitter ◽  
Extended Phase ◽  
Regular Black Hole ◽  
Engine Efficiency ◽  
Thermodynamic Pressure

In this paper, we attempt to further study the heat engine efficiency for the regular black hole (BH) with an anti-de Sitter (AdS) background where the working material is the Hayward–AdS (HAdS) BH. In the extended phase space, we investigate the heat engine efficiency of the HAdS BH by defining the cosmological constant as the thermodynamic pressure P and deriving the mechanical work from the PdV terms. Then, we obtain the relation between the efficiency and the entropy/pressure and plot these function figures. Meanwhile, we compare the relation between the HAdS BH with that of the Bardeen–AdS (BAdS) BH, where it is found that the efficiency of the HAdS BH increases with increase in the magnetic charge q in contrast to that of the BAdS BH decrease with increase in the magnetic charge q. We found that the HAdS BH is more efficient than the BAdS BH, and guess that it is related to the BH structure.

scholarly journals Joule–Thomson expansion in AdS black hole with a global monopole

2018 ◽  
Vol 33 (35) ◽  
pp. 1850210 ◽  
Author(s):  
C. L. Ahmed Rizwan ◽  
A. Naveena Kumara ◽  
Deepak Vaid ◽  
K. M. Ajith
Keyword(s):  
Phase Transition ◽  
Black Holes ◽  
Black Hole ◽  
Phase Space ◽  
Van Der Waals ◽  
Extended Phase Space ◽  
Global Monopole ◽  
Van Der Waals Gas ◽  
Extended Phase ◽  
Ads Black Holes

In this paper, we investigate the Joule–Thomson effects of AdS black holes with a global monopole. We study the effect of the global monopole parameter [Formula: see text] on the inversion temperature and isenthalpic curves. The obtained result is compared with Joule–Thomson expansion of van der Waals fluid, and the similarities were noted. Phase transition occuring in the extended phase space of this black hole is analogous to that in van der Waals gas. Our study shows that global monopole parameter [Formula: see text] plays a very important role in Joule–Thomson expansion.

scholarly journals Black Hole Solution of Einstein-Born-Infeld-Yang-Mills Theory

2017 ◽  
Vol 2017 ◽  
pp. 1-7 ◽  
Author(s):  
Kun Meng ◽  
Da-Bao Yang ◽  
Zhan-Ning Hu
Keyword(s):  
Phase Transition ◽  
Black Hole ◽  
Phase Space ◽  
Cosmological Constant ◽  
Black Hole Solution ◽  
Extended Phase Space ◽  
Extended Phase ◽  
Yang Mills ◽  
First Law Of Thermodynamics ◽  
Dimensional Black Hole

A new four-dimensional black hole solution of Einstein-Born-Infeld-Yang-Mills theory is constructed; several degenerated forms of the black hole solution are presented. The related thermodynamical quantities are calculated, with which the first law of thermodynamics is checked to be satisfied. Identifying the cosmological constant as pressure of the system, the phase transition behaviors of the black hole in the extended phase space are studied.

Extended phase-space thermodynamics of black holes in massive gravity

2019 ◽  
Vol 34 (09) ◽  
pp. 1950063
Author(s):  
Parthapratim Pradhan
Keyword(s):  
Phase Transition ◽  
Black Holes ◽  
Black Hole ◽  
Phase Space ◽  
Equation Of State ◽  
Critical Point ◽  
Massive Gravity ◽  
Extended Phase Space ◽  
Extended Phase ◽  
Thermodynamics Of Black Holes

We study the extended phase-space thermodynamics of black holes in massive gravity. Particularly, we examine the critical behavior of this black hole using the extended phase-space formalism. Extended phase-space can be defined as one in which the cosmological constant should be treated as a thermodynamic pressure and its conjugate variable as a thermodynamic volume. In this phase-space, we derive the black hole equation of state, the critical pressure, the critical volume and the critical temperature at the critical point. We also derive the critical ratio of this black hole. Moreover, we derive the black hole reduced equation of state in terms of the reduced pressure, the reduced volume and the reduced temperature. Furthermore, we examine the Ehrenfest equations of black holes in massive gravity in the extended phase-space at the critical point. We show that the Ehrenfest equations are satisfied on this black hole and the black hole encounters a second-order phase transition at the critical point in the said phase-space. This is re-examined by evaluating the Pregogine–Defay ratio [Formula: see text]. We determine the value of this ratio is [Formula: see text]. The outcome of this study is completely analogous to the nature of liquid–gas phase transition at the critical point. This investigation also further gives us the profound understanding between the black hole of massive gravity with the liquid–gas system.

scholarly journals More insight into microscopic properties of RN-AdS black hole surrounded by quintessence via an alternative extended phase space

2018 ◽  
Vol 15 (10) ◽  
pp. 1850171 ◽  
Author(s):  
M. Chabab ◽  
H. El Moumni ◽  
S. Iraoui ◽  
K. Masmar ◽  
S. Zhizeh
Keyword(s):  
Phase Transition ◽  
Black Hole ◽  
Phase Transitions ◽  
Phase Space ◽  
Microscopic Structure ◽  
Extended Phase Space ◽  
Extended Phase ◽  
Horizon Radius ◽  
Insight Into

In this work, we study the phase transition of the charged-AdS black hole surrounded by quintessence via an alternative extended phase space defined by the charge square [Formula: see text] and her conjugate [Formula: see text], a quantity proportional to the inverse of horizon radius, while the cosmological constant is kept fixed. The equation of state is derived under the form [Formula: see text] and the critical behavior of such black hole analyzed. In addition, we examine the role of the quintessence parameter and its effects on phase transitions. Besides that, we explore the connection between the microscopic structure and Ruppeiner geothermodynamics. We also find that, at certain points of the phase space, the Ruppeiner curvature is characterised by the presence of singularities that are interpreted as a signal of the occurrence of the phase transitions.

scholarly journals Dynamical and thermal stabilities of nonlinearly charged AdS black holes

2019 ◽  
Vol 79 (9) ◽  
Author(s):  
S. N. Sajadi ◽  
N. Riazi ◽  
S. H. Hendi
Keyword(s):  
Phase Transition ◽  
Black Holes ◽  
Black Hole ◽  
Normal Modes ◽  
Extended Phase Space ◽  
Extended Phase ◽  
Thermal Stabilities ◽  
Ads Black Holes ◽  
Black Hole Solutions ◽  
Scalar Perturbations

Abstract In this paper, we study an extended phase space thermodynamics of a nonlinearly charged AdS black hole. We examine both the local and global stabilities, and possible phase transition of the black hole solutions. Finally, we compute quasi-normal modes via scalar perturbations and compare the obtained results with those of Reissner-Nordström black hole.

Investigation of phase transition of BTZ black hole with Sharma–Mittal entropy approaches

2019 ◽  
Vol 34 (30) ◽  
pp. 1950182 ◽  
Author(s):  
J. Sadeghi ◽  
M. Rostami ◽  
M. R. Alipour
Keyword(s):  
Phase Transition ◽  
Black Hole ◽  
Phase Space ◽  
Local Stability ◽  
Thermodynamic Quantities ◽  
Extended Phase Space ◽  
Btz Black Hole ◽  
Extended Phase ◽  
Corrected Entropy ◽  
Global And Local

In this paper, we use Bekenstein entropy and study thermodynamic quantities and phase transition for the charged BTZ black hole. Then, we apply the Sharma–Mittal (SM) entropy and calculate some thermodynamic quantities. Here, we note that in case of [Formula: see text], the SM entropy is same as the known corrected entropy. Also, we investigate [Formula: see text] critically and phase transition of this corrected black hole and show that the critical points of corrected black hole are similar to Van der Waals fluid. We compare phase transition of corrected and uncorrected entropies to each other. Finally, we study the effect of SM entropy on the global and local stability in the extended phase space. Here, we also compare the obtained results of corrected entropy with respect to uncorrected entropy.

scholarly journals Thermal image and phase transitions of charged AdS black holes using shadow analysis

2020 ◽  
Vol 35 (27) ◽  
pp. 2050170 ◽  
Author(s):  
A. Belhaj ◽  
L. Chakhchi ◽  
H. El Moumni ◽  
J. Khalloufi ◽  
K. Masmar
Keyword(s):  
Phase Transition ◽  
Black Holes ◽  
Black Hole ◽  
Thermal Image ◽  
Point Of View ◽  
Extended Phase Space ◽  
Efficient Tool ◽  
Extended Phase ◽  
Ads Black Holes ◽  
Black Hole Temperature

We investigate the relations between the black hole shadow and charged AdS black hole critical behavior in the extended phase space. Using the thermo-shadow formalism built in Ref. 1, we reveal that the shadow radius can be considered as an efficient tool to study thermodynamical black hole systems. Based on such arguments, we build a thermal profile by varying the RN–AdS black hole temperature on the shadow silhouette. Among others, the Van der Waals-like phase transition takes place. This could open a new window on the thermal picture of black holes and the corresponding thermodynamics from the observational point of view.

Thermodynamics of asymptotically flat Reissner–Nordstrom black hole

2021 ◽  
pp. 2150071
Author(s):  
Aloke Kumar Sinha
Keyword(s):  
Phase Transition ◽  
Thermal Stability ◽  
Black Holes ◽  
Black Hole ◽  
Black Hole Mass ◽  
Schwarzschild Black Hole ◽  
Asymptotically Flat ◽  
Electrically Charged ◽  
Derivatives Of ◽  
Thermal Stability Of

We established the criteria for thermal stability of a most general black hole in the form of a series of inequalities connecting second-order derivatives of the black hole mass with respect to its parameters. The mass of a black hole depends solely on these parameters, e.g. horizon area and electric charge are these parameters for non-rotating charged black hole. We also introduced the notion of “Quasi stability”. It is known how to calculate the fluctuations of these parameters for both stable and quasi stable black holes. In this paper, we consider the simplest black hole having nontrivial parameter, i.e. electrically charged non-rotating asymptotically flat Reissner–Nordstrom black hole (AFRNBH). We will show here that this black hole is not stable anywhere in its parameter space, but it is actually quasi stable, having positive specific heat in some region, violating Hawking’s prediction. In fact, this black hole will be shown to exhibit phase transition which is structurally quite different from that in case of Schwarzschild black hole, as predicted first by Hawking. This black hole will also be shown to try to resist its decay under Hawking radiation, but ultimately remains unsuccessful.

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