Related Experiment Video
Updated: Dec 28, 2025
14:58
Silicon Metal-oxide-semiconductor Quantum Dots for Single-electron Pumping
Published on: June 3, 2015
15.3K
Comment on "Dynamically induced heat rectification in quantum systems"
1Université de Lyon, ENS de Lyon, Université Claude Bernard, CNRS, Laboratoire de Physique, F-69342 Lyon, France.
Physical Review. E
|February 20, 2020
Summary
This study demonstrates that heat rectification in driven harmonic oscillators is a general phenomenon, applicable to both quantum and classical systems. The findings broaden the understanding of thermal transport in driven oscillatory networks.
Area of Science:
- Physics
- Thermodynamics
- Statistical Mechanics
Background:
- The study of heat rectification is crucial for understanding thermal transport in nanoscale systems.
- Previous research has focused on the quantum nature of heat rectification in driven systems.
- Harmonic oscillators are fundamental models for studying thermal phenomena.
Purpose of the Study:
- To investigate the generality of heat rectification in periodically driven harmonic oscillators.
- To demonstrate that the phenomenon is not limited to quantum systems.
- To broaden the applicability and understanding of heat rectification.
Main Methods:
- Analysis of heat rectification in a network of harmonic oscillators.
- Theoretical modeling of thermal transport in periodically driven systems.
- Comparison of results for both quantum and classical system descriptions.
Main Results:
- Heat rectification is shown to be valid for classical systems, not just quantum systems.
- The phenomenon of heat rectification is demonstrated in a general setting of driven harmonic oscillators.
- The findings suggest a broader applicability of the studied thermal transport mechanism.
Conclusions:
- The results presented are general and applicable to both quantum and classical harmonic oscillator networks.
- This work broadens the interest in the original study by Riera-Campeny et al.
- The findings may pave the way for a more fundamental understanding of heat rectification.
Related Concept Videos
02:44Heating and Cooling Curves
26.4K
When a substance—isolated from its environment—is subjected to heat changes, corresponding changes in temperature and phase of the substance is observed; this is graphically represented by heating and cooling curves.
For instance, the addition of heat raises the temperature of a solid; the amount of heat absorbed depends on the heat capacity of the solid (q = mcsolidΔT). According to thermochemistry, the relation between the amount of heat absorbed or released by a substance, q, and its...
For instance, the addition of heat raises the temperature of a solid; the amount of heat absorbed depends on the heat capacity of the solid (q = mcsolidΔT). According to thermochemistry, the relation between the amount of heat absorbed or released by a substance, q, and its...
26.4K
02:59Enthalpy
46.6K
Chemists ordinarily use a property known as enthalpy (H) to describe the thermodynamics of chemical and physical processes. Enthalpy is defined as the sum of a system’s internal energy (E) and the mathematical product of its pressure (P) and volume (V):
46.6K
02:46Quantifying Heat
61.3K
Thermal Energy Microscopically, thermal energy is the kinetic energy associated with the random motion of atoms and molecules. Temperature is a quantitative measure of “hot” or “cold”, which depends on the amount of thermal energy. When the atoms and molecules in an object are moving or vibrating quickly, they have a higher average kinetic energy (KE) (or higher thermal energy), and the object is perceived as “hot”, or it is described as being at a higher temperature. When the...
61.3K
01:18Entropy
3.4K
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...
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...
3.4K
01:15Statements of the Second Law of Thermodynamics
4.8K
The second law of thermodynamics can be stated in several different ways, and all of them can be shown to imply the others. The Clausius’ statement of the second law of thermodynamics is based on the irreversibility of spontaneous heat flow. It states that heat will not flow from the colder body to the hotter body unless some other process is involved. Additionally, as per the Kelvin’s statement, it is impossible to convert the heat from a single source into work without any other...
4.8K
01:19Mechanism of heat transfer
1.8K
Understanding heat transfer mechanisms is essential for understanding how our bodies maintain balance in different environmental conditions. When the environment is thermoneutral, the body is in a state of balance, neither using nor releasing energy to maintain its core temperature. However, when the environment is not thermoneutral, the body employs four heat transfer mechanisms to maintain homeostasis: conduction, convection, evaporation, and radiation. These mechanisms facilitate heat...
1.8K