and that therefore a photon is NOT a "particle".
Are you agreeing that it is not a "particle"; and that the schizophrenic concept of "wave-particle duality" is lunatic? Thanks!and that therefore a photon is NOT a "particle".
No one has claimed that the photon was a particle since the early nineteenth century.
So if you're waiting for some 'admission' as to this fact you're 200 years too late.
Are you agreeing that it is not a "particle"; and that the schizophrenic concept of "wave-particle duality" is lunatic?
Most of objects around us are particles, so why just the photon should be an exception?All objects (matter and light) around us are waves: They can be rudimentary coherent-waves (like the photon and the electron) or built up from an entanglement and/or superposition of waves. All of them, when not experiencing a change in boundary conditions, move through free space following a definite path: This does NOT make them "particles": Just as the sun, earth, Jupiter etc. are not "particles".
What is lunatic about it? A photon is some entity that has some properties that appear to conform to a wave analogy under some conditions and some other properties that conform to a particle-like analogy under other conditions.
That it is called a wave-particle duality is not meant to suggest that it is a wave or a particle (or limited to ONLY exhibiting wave-like and particle-like behaviours. E.g. Photons can be entangled which is not specifically particle-like nor wave-like behavior.)
The duality only says that you can make experiments where it seems like a particle and others where it seems like a wave. Nothing more, nothing less.
Define for me what is the "particle-analogy" that a photon-wave cannot conform to?
A coherent wave can split into two parts while remaining a single wave so that the two parts remain in intimate with one another. This is NOT possible for "particles".
Nature is NOT schizophrenic
Single photon detectors behind a double slit. etc. etc.
If the photon were just the wave then with every singular photon in the apparatus you'd get a smeared picture all over the receiving screen
(because the wave energy would be distributed accross the entire wavefront).So what? When it resonates with a atomic sized detector it encounters new boundary-conditions and this causes it to change in shape and size: As we KNOW that ALL waves do!
However that is not what is observed. Photons arrive at the screen in localized quanta (which is a particle-like behavior)
All the 'particle-like' means is: localized, quantized. non-distributed.
I agree that this is not possible for particles. But you should try to read before posting replies. No one on earth is saying that photons are particles. No one. (Also no one is saying they are waves. No one)
Photons just exhibit properties/behavior that particles would, too under a certain set of circumstances.
It's a bit like the color blue. Just because my t-shirt is blue does not mean it is the sky. It just exhibits 'sky-like' qualities by having a property that looks the same.When did your T-shirt act like the sky? This is the most stupid analogy I have ever seen!
No it is not. But nature is also not limited to "It has to be either a wave or a particle and there is no third possibility".Which third possibility? Have you got data which can be interpreted as "not-wave" AND also "not-particle"? I am all ears!
I think this is the crucial point you're missing. Waves and particles are MODELS.I am not missing any crucial point since you are not making any crucial ones. The question is why do you require a "particle-model" when you can model all interactions in nature purely in terms of waves?
Typing it over and over doesn't make it true. I'm still going with Max Planck, thanks.So do I. Max Planck modeled cavity radiation in terms of stationary waves, each of which fills the whole cavity. He then postulated that the energy of each wave can only increase in terms of quanta of energy. This obviously does NOT mean that light consists of "particles" flitting around within the cavity, but only that the emitters and absorbers within the walls of the cavity cannot emit less energy than a quantum at a time or absorb less energy than a quantum at a time.
Fair play johan, i really do want to agree with you and i have often thought along these very lines, all waves would be magical for reasons i don't even know but a wavicle or corpuscle would do fine for communicating our best guesses about what a photon really is.I disagree that one should bring in another concept than that a photon is a light-wave moving with momentum p=E/c=(hbar*nu)/c. The wave is a coherent wave which in free space occupies a limited volume: One does not need any other term than "light-wave". To use terms like "particle" or "wavicle" only serve to sow confusion; and this confusion leads to Voodoo concepts like Wheeler's "participating Universe" and "Everett's (a student of Wheeler) Multi-Universes. Wheeler was a fine old gentleman, but just like Dirac and Feynman led realistic physics astray.
By communicating i mean communicating without maths.
You can't make a photon without the boundary conditions, they are linked, they are one and the same.at least here you are right but you are still missing the point!
Now if you are trying to get to the bottom of what energy actually is, then, you still have to employ particulate descriptions because of the big bang ect..Wrong! Wrong! Wrong! The "Big Bang" most probably did not involve any "particles" at all. According to Guth, and I believe his reasons are correct, there was a BIG INFLATION. Only a primordial wave can inflate instantaneously, just as an electron-wave around the nucleus of an atom does when it absorbs a photon!
Inflation regardless, from a 'point like' origin.If it started from a "point" then as sure as hell the "point" could not have had a tremendously high temperature since temperature requires kinetic-energy and kinetic-energy requires objects moving through space. Thus for our Universe to have inflated from a "point" the energy "within this point" must have been purely potential energy so that the temperature "within this point" must have been T=0.
I think my 'point' still stands as the need for an all encompassing description ..
I'd find it pretty difficult to model beta decay using just waves, we have electrons, antineutrinos and photons to deal with. And they're all related somehow, limiting yourself to waves does just that.
We model charge and the lorentz force using particles,Wrong! We model this by using a center-of-charge and a center-of-mass. The fact that a body has a center-of-charge and a center-of-mass does NOT make it a "particle".
And also Planks constant in the photon energy equation suggests a quantum nature at a fundamental level.It only defines the minimum amount of light-energy of a single coherent wave, with that frequency, which can be emitted by a light-source: So Planck's constant is determined by the limitation that, on the atomic scale, a light source which can emit a single coherent wave with less energy cannot exist. This does not demand that all light-waves with a definite frequency can only be photon-waves: A laser beam is a single coherent light-wave with FAR more energy
I like the back and forth Johan/Joe. If I may chime in, I think this became far more complicated by the physics world treating mass and energy as as separate entities, but I understand why it happened. We as a race learned to quantify mass and weight long before we knew about energy and wavelength. But once we realized the interchangeability between mass and energy, we failed to unify the terminology and instead, tried harder to separate the concepts. If the human race ever starts trying to simplify things that have become overly complicated....you can "wave" goodbye to particles.
But you should try to read before posting replies. No one on earth is saying that photons are particles. No one.-I think what you mean is everyone instead of no one. Must be a typo.
What is lunatic about it? A photon is some entity that has some properties that appear to conform to a wave analogy under some conditions and some other properties that conform to a particle-like analogy under other conditions.All particles do these things.
Photons can be entangled which is not specifically particle-like nor wave-like behavior-as well as electrons, molecules as large as buckyballs, and even small diamonds.
When people create maths that have the ability to model some aspect of nature, it's beautiful.
And Dirac was a cool guy in the grand scheme of things.He might have been "cool" but his equation is unadulterated mathematical rubbish!
"A photon is an elementary particle,It is NOT a "particle", it is a coherent wave with energy (hbar)*(omega) which is modeled by Maxwell's equation for the electric-potential of light.
the quantum of light and all other forms of electromagnetic radiation, and the force carrier for the electromagnetic force, even when static via virtual photons...The photon is the gauge boson for electromagnetism" "a gauge boson is a force carrier, a bosonic particle that carries any of the fundamental interactions of nature."Gauge bosons have been derived in terms of Dirac's wave equation which is unadulterated trash! If you do physics on the quantum scale correctly, you will find that the energy of any matter-wave is NOT gauge invariant: Thus, to use gauge-invariance to model "gauge-forces" is nonsensical.
It is easy to prove from Einstein's STR that a moving electron is...
It is easy to prove from Einstein's STR that a moving electron is...
Stop right there. No scientist would make this statement. Proof in science comes from measurements and observations.
Proof in science comes from measurements and observations.AND ALSO FROM LOGICAL DEDUCTIONS FROM EXISTING KNOWLEDGE!
@Johanfprins
I get the impression you are stuck in pre QFT QED physics
and dont have a clue what to do with these concepts because you dont get it.BTW I do understand the mathematics and the physics reasoning in these fields. But if you are a real physicist, and you find that a theory (even though you have believed for years that it is correct) has all along been wrong, you are obliged to reject that theory and move on.
(I dont understand it in full either but i do not pretend to know better)
You are just spammingHow do you know this without having studied my arguments based on excellent physics. I am not a hand-waving maniac that hallucinate about ducks and foam, and infinite seas of electrons, and multi-verses and "participating universes". I understand and know what I am doing
the same nonsense over and over again.
johanfprins
Nov 23, 2012