Quantum coherence in a gas sample

In summary, the conversation discusses the application of Pascal's principle to a hypothetical scenario involving a U tube with reflective walls and varying diameters at each end. The question posed is whether the principle still holds true when considering the effects of light pressure. The participants express curiosity and further discussion is encouraged.
  • #1
DaTario
1,091
45
Pascal principle with light pressure

Hello,

Supose you have an U tube, in which the inner walls are made absolutelly reflective. Now, put a termical state (temperature T) for the radiation field inside the tube and close it with reflective discs which can slide without friction. Supose further that de diameter of the tube in its terminations are not equal. For the sake of definiteness, let's assume 2 sq meters cross section in one side and 10 sq meters in the other. My question is: Taking into account light pressure effects , is the Pascal principle valid in this context ?
 
Last edited:
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  • #3
Hello Greg, no, but I still have some excitation about it. Do you have any info or comment?

Editing: only reading again I noticed that the title has some mistake in it. In my question, the tube should have inside only vacuum and light. Interesting to note.
 

FAQ: Quantum coherence in a gas sample

What is quantum coherence in a gas sample?

Quantum coherence in a gas sample refers to the phenomenon of the collective behavior of gas particles, where they exhibit wave-like characteristics and maintain a synchronized phase. This coherence is a result of quantum mechanical interactions between the particles.

How is quantum coherence in a gas sample measured?

Quantum coherence in a gas sample can be measured through techniques such as spectroscopy and interferometry. These methods involve shining a laser beam on the gas sample and analyzing the resulting interference patterns to determine the coherence of the gas particles.

What factors can affect quantum coherence in a gas sample?

Several factors can affect quantum coherence in a gas sample, including temperature, pressure, and the composition of the gas. External factors such as external fields or interactions with other particles can also impact the coherence of the gas sample.

What are the applications of quantum coherence in a gas sample?

Quantum coherence in a gas sample has various applications, including in quantum computing, quantum information processing, and quantum metrology. It also plays a crucial role in understanding and studying the properties of complex systems and can contribute to advancements in fields such as materials science and chemistry.

Can quantum coherence in a gas sample be controlled?

Yes, quantum coherence in a gas sample can be controlled through various techniques such as manipulating the external conditions (e.g., temperature, pressure) or using external fields to manipulate the interactions between gas particles. This control is essential for harnessing the potential applications of quantum coherence in gas samples.

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