Is wave-particle duality a myth?

In summary, this paper suggests that the term 'wave-particle duality' is an incorrect description of the phenomenon, and goes into a bit of heavy maths to describe the realities of it.
  • #1
gerbilmore
31
1
Hi,

This paper- http://arxiv.org/abs/quant-ph/0609163 - suggests (on p4) that the term 'wave-particle duality' is an incorrect description of the phenomenon, but then goes into a bit of heavy maths to describe the realities of it, so I'm left a little confused.

Is my understanding correct when I say that the term 'duality' incorrectly suggests that a particle is also a wave, - ie. suggesting that a particle and a wave are two separate things in their own right - when actually neither is entirely correct and a particle by its very nature *is* a wave in the sense that it spreads out and does't actually act like a particle in the classic 'solid object in an specific position in space' kind of way?

Seems like a useful paper to clarify some misconceptions. Thanks.
 
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  • #2
And to add to that, is all of the stuff in the universe essentially in the form of waves or fields, which can manifest as point like particles. I get confused between waves, fields and particles when trying to get my head around the fundamental 'stuff' of the universe. I'm sure I'm not alone!
 
  • #3
gerbilmore said:
Hi,

This paper- http://arxiv.org/abs/quant-ph/0609163 - suggests (on p4) that the term 'wave-particle duality' is an incorrect description of the phenomenon, but then goes into a bit of heavy maths to describe the realities of it, so I'm left a little confused.

Is my understanding correct when I say that the term 'duality' incorrectly suggests that a particle is also a wave, - ie. suggesting that a particle and a wave are two separate things in their own right - when actually neither is entirely correct and a particle by its very nature *is* a wave in the sense that it spreads out and does't actually act like a particle in the classic 'solid object in an specific position in space' kind of way?

Seems like a useful paper to clarify some misconceptions. Thanks.
A quantum system is neither a wave, or particle, in the classical sense.
 
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  • #4
What the particle "is" is difficult to define. For example - photons. When doing a double slit experiment, waves make sense. For the photo-electric effect, particles make sense. What words to use to describe photons is almost outside of physics.
 
  • #5
You may call it a myth, I name it <a short lived outdated principle> in physics which should only be mentioned as a historical fact in introductory texts on modern physics, just like the Bohr model of 1913.
 
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  • #6
gerbilmore said:
And to add to that, is all of the stuff in the universe essentially in the form of waves or fields, which can manifest as point like particles. I get confused between waves, fields and particles when trying to get my head around the fundamental 'stuff' of the universe. I'm sure I'm not alone!

The wave bit is incorrect.

Its in the form of quantum fields - but an intuitive understanding of that is not really possible - although the following makes a reasonable fist of it:
https://www.amazon.com/dp/0473179768/?tag=pfamazon01-20

Thanks
Bill
 
  • #7
dextercioby said:
You may call it a myth, I name it <a short lived outdated principle> in physics which should only be mentioned as a historical fact in introductory texts on modern physics, just like the Bohr model of 1913.

Its not a myth - De-Broglie came up with that hypotheses - that's a historical fact - and he won a Nobel prize for it - it was an indispensable way-station in the development of the full theory. But with the rapid development of quantum physics between 1922 when he made the hypothesis and end of 1926 when the full quantum theory emerged it didn't last long and it's simply a bit of outdated physics that has outlived it usefulness.

The modern statent is quantum particles sometimes act like waves, sometimes like particles, but most of the time like neither. The issue is to know what like and sometimes means in that statement you have to use the full quantum theory so you may as well do that from the start.

Thanks
Bill
 
Last edited:
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  • #8
bhobba said:
The wave bit is incorrect.
And the point-particle bit is not?
 
  • #9
Enough already... we're starting to talk about which is the most unaccepted part of a no-longer accepted picture, and that's neither helping OP with his question (which has been answered now) nor creating a discussion that will be helpful to someone else (for example, a new visitor brought to the thread via google).

Closed, but PM me if you want to add something to this thread that will help either OP or my hypothetical new visitor.
 

1. What is wave-particle duality?

Wave-particle duality is a concept in quantum physics that describes the phenomena of particles exhibiting both wave-like and particle-like behavior. This means that particles, such as electrons and photons, can exhibit characteristics of both waves and particles depending on how they are observed or measured.

2. Is wave-particle duality a proven concept?

Yes, wave-particle duality has been extensively studied and tested through various experiments, and has been proven to be a fundamental principle of quantum mechanics. It is supported by various theories, such as the famous double-slit experiment, and has been confirmed by numerous experiments and observations.

3. Can you give an example of wave-particle duality?

One example of wave-particle duality is the behavior of electrons. When electrons are observed through a double-slit experiment, they exhibit wave-like behavior by creating an interference pattern. However, when they are observed as individual particles, they behave like discrete particles with a specific position and momentum.

4. Is wave-particle duality a myth or just a theory?

Wave-particle duality is not a myth, it is a well-established principle in quantum mechanics. While it is considered a theory, it has been extensively tested and confirmed through experiments and observations. It is an essential concept in understanding the behavior of subatomic particles.

5. Does wave-particle duality have any practical applications?

Yes, wave-particle duality has many practical applications in various fields, such as electronics, photonics, and quantum computing. Understanding the dual nature of particles has led to the development of technologies like transistors and lasers, which are essential components in modern devices. It also plays a crucial role in the development of quantum computing, which has the potential to revolutionize computing and information processing.

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