Quantum virial and confinement

In summary, the conversation discusses the concept of virial and how it relates to the energy spectrum of confined particles. The question is raised about the energy associated with a confined particle in a specific dimension and whether it is discretized. There is also mention of using this concept to explain the fringe patterns in the one slit experiment. More discussion and hypothesis are needed to fully understand this concept.
  • #1
DaTario
1,039
35
Hi All

As far as I know, the virial is the component of the Kinetic energy associated with one particular spatial dimension.

Aditionally, when a particle is confined, its energy spectrum gets discretized.

So my question:
if, in three dimensions, a particle with momentum in ^i passes a slit in a plane (^j and ^k with the slit along ^k), as long the particle is inside the slit, laterally it is confined in the dimension ^j, so is it correct to state that the energy associated with v_j is discretized?

Thank you

DaTario
 
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  • #3
No. But in fact I still believe that it is possible to describe the one slit experiment with tiny particles using the fact that when the particle crosses the slit, during a small interval of time it is inside a well and its spectrum in the transverse direction gets discretized. It is, then, precisely this dicretization of energy that makes the particle arrive in fringes at the ecran. Additional hypothesis must be discussed, and questions must be answered, but I think it would provide a nice way to explain the fringe paterns.

Best Regards,
DaTario
 

1. What is the concept of quantum virial and confinement?

Quantum virial and confinement refer to the phenomenon in quantum mechanics where particles are confined to a small region or potential well, resulting in their energy being quantized and their behavior being governed by the principles of quantum mechanics.

2. How does quantum confinement affect the properties of particles?

Quantum confinement can lead to changes in the energy levels, behavior, and physical properties of particles, such as their size, shape, and conductivity. This is due to the restrictions placed on the particles by the confined space, resulting in altered quantum states and interactions.

3. What are some examples of quantum confinement in real-world applications?

Quantum confinement has been observed in various systems, such as quantum dots in semiconductors, atoms trapped in optical lattices, and electrons in nanowires. It also plays a crucial role in technologies like quantum computers, solar cells, and LEDs.

4. How is quantum virial and confinement related to Heisenberg's uncertainty principle?

Quantum confinement can be seen as a manifestation of Heisenberg's uncertainty principle, which states that the more precisely we know the position of a particle, the less we know about its momentum and vice versa. In confined systems, the position and momentum of particles are more restricted, leading to uncertainty in their values.

5. Can quantum confinement be observed in macroscopic systems?

While quantum confinement is primarily observed in microscopic systems, it can also be seen in certain macroscopic systems, such as Bose-Einstein condensates and superfluids. These systems exhibit quantum behavior on a larger scale, allowing for the observation of quantum confinement effects.

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