# What Is Temperature? Modern Outlook on the Concept of Temperature

## Abstract

**:**

## 1. Introduction

## 2. Results and Discussion

#### 2.1. Temperature as an Average of the Kinetic Energy and the Metrics of Configurational Space

#### 2.2. Temperature, Energy, and Entropy: An Alternative Glance on the Temperature

#### 2.3. Entropy Forces and Fundamental Role of Temperature

#### 2.4. The Landauer Principle and Informational Interpretation of the Temperature

#### 2.5. Fundamental Role of the Cosmic Background Temperature

#### 2.6. Boltzmann and Gibbs Temperatures: Is a Negative Absolute Temperature Possible?

## 3. Conclusions

## Funding

## Acknowledgments

## Conflicts of Interest

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**Figure 1.**Origin of the inertia entropic force is illustrated [25]. A particle with mass m approaches a holographic screen possessing temperature T. $\mathsf{\Delta}S$ is the entropy change near the screen.

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Bormashenko, E. What Is Temperature? Modern Outlook on the Concept of Temperature. *Entropy* **2020**, *22*, 1366.
https://doi.org/10.3390/e22121366

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Bormashenko E. What Is Temperature? Modern Outlook on the Concept of Temperature. *Entropy*. 2020; 22(12):1366.
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Bormashenko, Edward. 2020. "What Is Temperature? Modern Outlook on the Concept of Temperature" *Entropy* 22, no. 12: 1366.
https://doi.org/10.3390/e22121366