Does anything happen in the quantum world?

  • B
  • Thread starter DiamondHead
  • Start date
  • Tags
    Quantum
In summary: These are useful concepts. But are limited by the inherent quantum uncertainty. They are superficial.
  • #1
DiamondHead
6
1
Was Neils Bohr justified to claim that the quantum world does not exist?

Are we stuck in a loop when having to use classical-world tools to probe and understand the micro world?

Does anything happen in the quantum world?
 
Last edited:
Physics news on Phys.org
  • #2
DiamondHead said:
Does anything happen in the quantum world?
What does that even mean? The "quantum world" is just a description of things very small, all of which do LOTS of things. Ever heard of electricity? An electron is a quantum object.
 
  • Like
Likes AronYstad
  • #3
phinds said:
What does that even mean? The "quantum world" is just a description of things very small, all of which do LOTS of things. Ever heard of electricity? An electron is a quantum object.
I was looking for a scientific answer specifically one related to quantum theory.

Does the theory say that anything is moving? Or that anything exists?
Does the math say what exists?
 
  • #4
DiamondHead said:
Does the theory say that anything is moving? Or that anything exists?
Does the math say what exists?
Math does not say what exists. NATURE says what exists. Where possible, we use math to describe what nature creates. Do you think electrons do not move?
 
  • Like
Likes gentzen
  • #5
phinds said:
Math does not say what exists. NATURE says what exists. Where possible, we use math to describe what nature creates. Do you think electrons do not move?

What does NATURE say it is that exists in the quantum world?

Does the uncertainty principle allow things to exist? And... well 'move'?
 
  • #6
DiamondHead said:
What does NATURE say it is that exists in the quantum world?
Protons, neutrons, photons, electrons, neutrinos ... Do you not know how to use Google?
DiamondHead said:
Does the uncertainty principle allow things to exist? And... well 'move'?
The uncertainly principle has nothing to do with whether or not things exist and whether or not they move.
 
  • #7
@DiamondHead it appears from you questions that you are not going to get very far asking semi-random questions on an Internet forum. Your time would be better spent actually learning some basic physics.
 
  • #8
DiamondHead said:
What does NATURE say it is that exists in the quantum world?

Does the uncertainty principle allow things to exist? And... well 'move'?
Ummmm.... atoms, nuclei, a large number of subatomic particles, just to list the obvious Physical things. Then there are fields, energy, momentum, spin, etc, etc. Pretty much everything you're likely to have been taught exists. Why would you doubt it?

The UP talks about the uncertainty of the value of different properties of an object. It does not say that an object does not exist or move.

-Dan
 
  • #9
topsquark said:
Ummmm.... atoms, nuclei, a large number of subatomic particles, just to list the obvious Physical things. Then there are fields, energy, momentum, spin, etc, etc. Pretty much everything you're likely to have been taught exists. Why would you doubt it?

The UP talks about the uncertainty of the value of different properties of an object. It does not say that an object does not exist or move.

-Dan

I know what the uncertainty principle does not say and I never asked what it does not say.
I asked if the UP allows quantum 'things' or systems to exist.
And 'move'.

I will ask in another way hopefully it will be easier to understand - does the UP prevent the scenario where quantum 'things' exist and move?
 
  • #10
phinds said:
@DiamondHead it appears from you questions that you are not going to get very far asking semi-random questions on an Internet forum. Your time would be better spent actually learning some basic physics.
I think you need to think more deeply about the uncertainty principle.
 
  • Like
Likes gentzen
  • #11
phinds said:
Protons, neutrons, photons, electrons, neutrinos ... Do you not know how to use Google?

These are useful concepts. But are limited by the inherent quantum uncertainty. They are superficial.
phinds said:
The uncertainly principle has nothing to do with whether or not things exist and whether or not they move.

Hmmm
 
  • #12
Thread closed for Moderation...
 
  • #13
Thread will remain closed. Turns out this newbie was another sockpuppet account of a previously banned (multiple times) member who posted similar nonsense. Thanks anyway folks. :smile:
 
  • Like
Likes vanhees71, Bystander, topsquark and 1 other person

FAQ: Does anything happen in the quantum world?

What is the quantum world?

The quantum world refers to the realm of physics that deals with the behavior of particles at the atomic and subatomic levels. It is governed by the principles of quantum mechanics, which describe phenomena that are not observed in the macroscopic world, such as superposition, entanglement, and wave-particle duality.

Does anything actually happen in the quantum world?

Yes, a lot happens in the quantum world. Particles constantly interact, change states, and exhibit behaviors that defy classical intuition. Events in the quantum world include the absorption and emission of photons, tunneling through potential barriers, and the formation of quantum entanglements between particles.

How does quantum mechanics differ from classical physics?

Quantum mechanics differs from classical physics in several fundamental ways. While classical physics describes the deterministic behavior of macroscopic objects, quantum mechanics deals with probabilities and uncertainties. Quantum particles can exist in multiple states simultaneously (superposition), and their properties are not definite until measured. Additionally, particles can become entangled, meaning the state of one particle can instantly affect the state of another, regardless of distance.

What is superposition in the quantum world?

Superposition is a principle in quantum mechanics where a quantum system can exist in multiple states at the same time. For example, an electron in an atom can be in a superposition of different energy levels. It is only when a measurement is made that the electron 'chooses' a specific state. This concept is famously illustrated by Schrödinger's cat thought experiment, where a cat in a box is simultaneously alive and dead until observed.

What is quantum entanglement?

Quantum entanglement is a phenomenon where two or more particles become interconnected in such a way that the state of one particle instantly influences the state of the other, no matter how far apart they are. This connection persists even if the particles are separated by large distances. Entanglement challenges classical notions of locality and has been experimentally verified, playing a crucial role in emerging technologies like quantum computing and quantum cryptography.

Similar threads

Replies
232
Views
18K
Replies
1
Views
1K
Replies
1
Views
1K
Replies
23
Views
1K
Back
Top