What is the minimum level of energy in quantum physics and who determined it?

  • Context: Graduate 
  • Thread starter Thread starter balulu
  • Start date Start date
  • Tags Tags
    Energy Quantum
Click For Summary

Discussion Overview

The discussion revolves around the concept of the minimum level of energy in quantum physics, exploring whether such a minimum exists, how it might be defined, and who has contributed to these ideas. The scope includes theoretical considerations and interpretations of quantum mechanics.

Discussion Character

  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • Some participants question the existence of a minimum quantum of energy, suggesting that for photons, energy can be made arbitrarily small by reducing frequency.
  • Others argue that the concept of a minimum energy is not meaningful in a dynamic universe, proposing that if the universe were static, one could theorize about a photon with a wavelength equal to the size of the universe representing minimal energy.
  • Ezio introduces the idea of the Casimir-Polder-Lifgarbagez experiment, suggesting it indicates a "point zero of energy" in quantum space, which he relates to the concept of vacuum energy.
  • Another participant mentions that a discrete time evolution would be necessary to define a minimal quantity of energy, implying that with continuous time, energy can approach zero without a defined minimum.
  • A request for clarification on the concept of discrete time in relation to energy is made, indicating a desire for deeper understanding of the implications of time's nature on energy levels.

Areas of Agreement / Disagreement

Participants express differing views on the existence of a minimum energy level in quantum physics, with no consensus reached. Some argue against the existence of such a minimum, while others propose theoretical frameworks that suggest otherwise.

Contextual Notes

The discussion includes various assumptions about the nature of the universe, the implications of quantum mechanics, and the interpretations of experimental results, which remain unresolved.

balulu
Messages
4
Reaction score
0
I have two questions regarding Quantom physics and energy:

1.What is the minimal quantom of energy in the universe? and How and who established it?

2.Are there theories that predict that a lower level of Quantom might exist and will be discovered/validated in the future? Who proposed the theories and what arguments are they using to justify them?
 
Physics news on Phys.org
balulu, There is no minimum. For example for a photon the quantum is E = ħω, and since the frequency ω can be as small as you like, so can E.
 
0. It is quantum, not quantom
1. There is no such thing. If the universe was completely static (and not expanding), one could argue that a photon with the wavelength of the size of the universe would have the minimal possible energy. But the universe is not static, so it is not really meaningful to talk about those photons.
2. What do you mean by "lower level"? The theories were developed by many scientists over several decades, and nearly every recent scientific experiment uses quantum physics in some way, with excellent agreement.
 
hi guys
i'm Ezio , an italian student physic.
i would start apologise me for my english, i have recently started the study of the english language. i read your argument on the possibility that there no be minimum energy for the elementary particles. i think that this argument is much interesting, but i asked me as this fact may agree with Casimir-Polder-Lifgarbagez's experiment, which show that there be an "point zero of the energy" into quantum space...this fact is expected by QUD, it just say as the vacuum space has an point zero of energy to below which you can't go...

thanks for you have read this post
ezio
 
Hi Balulu.

you'd need discrete time (evolution) to have a minimal quantity of energy. If we assume time is continuous then so is energy and it can be arbitrarily close to zero.

Of course, Nature ain't dumb (it JUST WORKS),and probably doesn't have zeroes and singularities, so make a guess how she does that :-)
 
Hi Balulu,
thanks for your answer
could you explain me what means to discrete time in the this context , please?
 

Similar threads

  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 5 ·
Replies
5
Views
2K
  • · Replies 8 ·
Replies
8
Views
1K
  • · Replies 29 ·
Replies
29
Views
3K
  • · Replies 3 ·
Replies
3
Views
3K
  • · Replies 5 ·
Replies
5
Views
573
  • · Replies 41 ·
2
Replies
41
Views
6K
  • · Replies 7 ·
Replies
7
Views
3K
  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 15 ·
Replies
15
Views
4K