- #1
taha_tehran
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How does the coherent quantum mechanical entity avoid disruptions by the lattice vibration and impurities?
Understanding the Significance of the Bound State in Cooper Pair Formation
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In summary, the conversation discusses the effects of lattice vibrations and impurities on the coherence of a quantum mechanical entity, specifically a superfluid. It is mentioned that introducing defects or raising the temperature can disrupt the coherence and lead to a finite resistance. To deal with this, various limits are used, such as the "dirty limit." The conversation also mentions the importance of understanding the Cooper Pair problem, specifically the bound state and its significance. However, it is emphasized that a more specific question is needed to receive a meaningful answer.
- #2
f95toli
Science Advisor
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It doesn't. At least not in general. Introducing defects and/or raising the temperature will always affect the propeties of the superfluid (coherence length etc). In some cases this also leads to a finite resistance due to e.g. phase slips.
This is why we use various limits, e..g the "dirty limit" etc when dealing with real materials.
This is why we use various limits, e..g the "dirty limit" etc when dealing with real materials.
- #3
taha_tehran
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cooper pairs
what s one of the most important results abtioned in theory cooper pairs?
what s one of the most important results abtioned in theory cooper pairs?
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How much of the Cooper Pair problem have you understood? Maybe people can answer you starting from there. For example, in Chap. 34 of Ashcroft and Mermin, 1st ed., they describe the derivation of the bound state. Have you worked through this? Is this what you didn't realize the significance of or didn't understand why it is important?
You need to be MORE specific in your question than this to get any reasonable answer.
Zz.
You need to be MORE specific in your question than this to get any reasonable answer.
Zz.
1. What are Disruptions Cooper pairs?
Disruptions Cooper pairs are a fundamental concept in superconductivity, which is the ability of certain materials to conduct electricity with zero resistance at very low temperatures. Cooper pairs are formed when two electrons in a superconductor are attracted to each other and act as a single entity. This allows for the movement of electrons without any loss of energy or heat, resulting in the zero resistance seen in superconductors.
2. How do Disruptions Cooper pairs contribute to superconductivity?
The formation of Cooper pairs is a key factor in the phenomenon of superconductivity. When a material is cooled to a very low temperature, the electrons in the material slow down and are able to pair up. These pairs are then able to move through the material without any resistance, resulting in the superconducting state.
3. What causes disruptions in Cooper pairs?
Disruptions in Cooper pairs can be caused by various factors, such as changes in temperature or magnetic fields. When a superconductor is exposed to these disruptions, the Cooper pairs can break apart, resulting in a loss of superconductivity. This is why maintaining low temperatures and shielding from magnetic fields is important for preserving the superconducting state.
4. How do Disruptions Cooper pairs affect the properties of superconducting materials?
The presence or absence of Cooper pairs greatly affects the properties of superconducting materials. In the superconducting state, the material has zero resistance and can conduct electricity without any loss of energy. However, when disruptions occur and the Cooper pairs break apart, the material returns to its normal resistive state and loses its superconducting properties.
5. What is the significance of understanding Disruptions Cooper pairs?
Understanding Disruptions Cooper pairs is crucial for the development and advancement of superconducting technologies. By studying the behavior and characteristics of these pairs, scientists can better understand and control the superconducting state, leading to potential applications in various fields such as energy transmission, medical imaging, and quantum computing.
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