Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Schwarzschild Radius and Event Horizon

Schwarzschild Radius and Event Horizon

No object with a finite mass can travel faster than the speed of light in a vacuum. This fact has an interesting consequence in the domain of extremely high gravitational fields.
The minimum speed required to launch a projectile from the surface of an object to which it is gravitationally bound so that it eventually escapes the object’s gravitational field is called the escape velocity. The escape velocity is independent of the mass of the object. Merging the idea of escape...

Detection of Black Holes

Detection of Black Holes

Although black holes were theoretically postulated in the 1920s, they remained outside the domain of observational astronomy until the 1970s.
Their closest cousins are neutron stars, which are composed almost entirely of neutrons packed against each other, making them extremely dense. A neutron star has the same mass as the Sun but its diameter is only a few kilometers. Therefore, the escape velocity from their surface is close to the speed of light.
Not until the 1960s, when the first neutron...

Thermodynamic Systems

Thermodynamic Systems

A thermodynamic system is a set of objects whose thermodynamic properties are of interest. The system is considered to be embedded in its surroundings or the environment. The system and its environment can exchange heat and do work on each other through a boundary that separates them. However, the immediate surroundings of the system interact with it directly and therefore have a much stronger influence on its behavior and properties.
Consider an example of tea boiling in a kettle. The...

Entropy

Entropy

Salt particles that have dissolved in water never spontaneously come back together in solution to reform solid particles. Moreover, a gas that has expanded in a vacuum remains dispersed and never spontaneously reassembles. The unidirectional nature of these phenomena is the result of a thermodynamic state function called entropy (S). Entropy is the measure of the extent to which the energy is dispersed throughout a system, or in other words, it is proportional to the degree of disorder of a...

Entropy

Entropy

The first law of thermodynamics is quantitatively formulated via an equation relating the internal energy of a system, the heat exchanged by it, and the work done on it. A quantitative formulation of the second law of thermodynamics leads to defining a state function, the entropy.
When an ideal gas expands isothermally, the disorder in the gas increases. From the molecular perspective, the gas molecules have more volume to move around in.
Consider an infinitesimal step in the expansion, which...

Third Law of Thermodynamics

Third Law of Thermodynamics

A pure, perfectly crystalline solid possessing no kinetic energy (that is, at a temperature of absolute zero, 0 K) may be described by a single microstate, as its purity, perfect crystallinity,and complete lack of motion means there is but one possible location for each identical atom or molecule comprising the crystal (W = 1). According to the Boltzmann equation, the entropy of this system is zero.

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Thermodynamic Curvature of the Binary van der Waals Fluid.

Entropy (Basel, Switzerland)·2020

Same author

Solid-like features in dense vapors near the fluid critical point.

The Journal of chemical physics·2017

Same author

Thermodynamic geometry of supercooled water.

Physical review. E, Statistical, nonlinear, and soft matter physics·2015

Same author

Thermodynamic curvature for a two-parameter spin model with frustration.

Physical review. E, Statistical, nonlinear, and soft matter physics·2015

Same author

Thermodynamic curvature for attractive and repulsive intermolecular forces.

Physical review. E, Statistical, nonlinear, and soft matter physics·2013

Same author

Thermodynamic curvature from the critical point to the triple point.

Physical review. E, Statistical, nonlinear, and soft matter physics·2012

Search research articles

Related Experiment Video

Updated: Nov 27, 2025

Characterization of Thermal Transport in One-dimensional Solid Materials

Characterization of Thermal Transport in One-dimensional Solid Materials

Published on: January 26, 2014

Thermodynamic Black Holes.

George Ruppeiner¹

¹Division of Natural Sciences, New College of Florida, 5800 Bay Shore Road, Sarasota, FL 34243, USA.

Entropy (Basel, Switzerland)

|December 3, 2020

Summary

This summary is machine-generated.

This study proposes a new thermodynamic method to select black hole equations of state. This approach bypasses quantum gravity challenges, using thermodynamics to guide black hole research.

Keywords:

Kerr black hole Reissner-Nordström black hole black hole thermodynamics critical phenomena information geometry of thermodynamics thermodynamic curvature

More Related Videos

Cryogenic Liquid Jets for High Repetition Rate Discovery Science

Cryogenic Liquid Jets for High Repetition Rate Discovery Science

Published on: May 9, 2020

Submillisecond Conformational Changes in Proteins Resolved by Photothermal Beam Deflection

Submillisecond Conformational Changes in Proteins Resolved by Photothermal Beam Deflection

Published on: February 18, 2014

Related Experiment Videos

Last Updated: Nov 27, 2025

Characterization of Thermal Transport in One-dimensional Solid Materials

Characterization of Thermal Transport in One-dimensional Solid Materials

Published on: January 26, 2014

Cryogenic Liquid Jets for High Repetition Rate Discovery Science

Cryogenic Liquid Jets for High Repetition Rate Discovery Science

Published on: May 9, 2020

Submillisecond Conformational Changes in Proteins Resolved by Photothermal Beam Deflection

Submillisecond Conformational Changes in Proteins Resolved by Photothermal Beam Deflection

Published on: February 18, 2014

Area of Science:

Theoretical physics
Black hole thermodynamics
Quantum gravity

Background:

Black holes present significant theoretical challenges due to the need to unify gravity and quantum mechanics.
Lack of detailed observational data hinders theoretical advancements in black hole physics.

Purpose of the Study:

To propose a thermodynamic framework for selecting accurate black hole equations of state.
To bypass the complexities of quantum gravity by utilizing black hole thermodynamics and information geometry.

Main Methods:

Employing black hole thermodynamics augmented with information geometry concepts.
Developing a thermodynamic agenda to choose candidate equations of state parameterized by two exponents.
Using Kerr and Reissner-Nordström black holes as models for guidance.

Main Results:

Identified candidate equations of state for black holes based on thermodynamic principles.
The proposed method allows for the incorporation of astrophysical or microscopic theory data via adjustable exponents.
The approach focuses on macroscopic properties derived from general thermodynamic assumptions.

Conclusions:

The developed thermodynamic agenda offers a novel pathway for selecting black hole equations of state.
This method can represent both gravitational and quantum properties of black holes.
It provides a framework to guide theoretical and observational research in black hole physics.