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Double Slit Experiments with Electrons

  1. Dec 23, 2014 #1
    Are electron also wave as are photons. I can image electron as Gaussian pulse to preserve it dual particle-wave nature. Does it preserve own magnetic and electric field values and wave frequency?
     
  2. jcsd
  3. Dec 23, 2014 #2

    phinds

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    There IS no "wave particle duality". As has been explained on this forum approximately 6,000 times, that's an 80 year old concept that is totally deprecated today (but unfortunately persists due to some mistaken belief that it makes things easier to explain to beginners). Both photons and electrons are quantum objects, NOT particles and NOT waves.
     
  4. Dec 23, 2014 #3
    Thank you. Does it means quantum objects are not fields too (waves are mathematical description of fields and other in the space) ? Then it must be something else corresponding to space structure!
     
    Last edited: Dec 23, 2014
  5. Dec 23, 2014 #4
    There's a gluon which holds quarks together.
     
  6. Dec 23, 2014 #5

    phinds

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    It means that they exhibit some wave characteristics and some particle characteristics, but that does NOT mean they are waves or particles
     
  7. Dec 23, 2014 #6

    bhobba

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    Last edited by a moderator: May 7, 2017
  8. Dec 23, 2014 #7

    bhobba

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    The correct statement of the wave-particle duality is sometimes it behaves like a particle, and sometimes like a wave - but really its neither.

    The reason it's frowned on at the more advanced level is to know when that sometimes applies and exactly what like means you need the full QM machinery - so it hasn't really bought you anything.

    Its fine for the stuff like the double slit experiment in beginner texts but once you venture into more advanced realms it quickly looses any value.

    Thanks
    Bill
     
  9. Dec 23, 2014 #8

    phinds

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    Isn't that exactly what I just said?
     
  10. Dec 23, 2014 #9

    bhobba

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    Pretty much.

    Its just I understand explaining it in my language.

    Sorry if I gave the impression what you wrote was wrong - it wasn't.

    Thanks
    Bill
     
  11. Dec 23, 2014 #10

    phinds

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    OK, got it.
     
  12. Dec 24, 2014 #11
    Thank you for the QFT book I downloaded today. There I have found also that quantum objects are space entities (structure) which confirmed me mine long time feelings of mass origin following:
    "By using colors to represent physical fields, we remind ourselves that fields are a property of space, not a separate substance in space."
    Brooks, Rodney A. (2010-12-14). Fields of Color: The theory that escaped Einstein (Kindle Locations 306-307). Epic Publications. Kindle Edition.
     
  13. Dec 24, 2014 #12

    bhobba

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    You are most welcome.

    You are on the right track understanding QM correctly, not the often half truths, and to be blunt sometimes downright junk in popularisations. Remember however this is the most advanced version of QM - and is not what is usually chatted about here - although you can of course discuss it if you wish.

    Thanks
    Bill
     
  14. Dec 24, 2014 #13
    Now I have discrete space, time and single quantum objects or having composite quantum systems which can rise or collapse at discrete time. Now I can image to build communication composite channel to other star to communicate with advance civilisation as us. The fundamental question what is trigger delay time of making single composition? Does measurement will collapse whole composite system or only part to be sustainable? (Technically at first achievement need to entangle whole laser beam to use for quantum communication to make next steps.)
     
    Last edited: Dec 24, 2014
  15. Dec 24, 2014 #14

    bhobba

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    Some of those issues are treated in the book you downloaded.

    Would it be possible for you to read it first then post with some questions?

    Thanks
    Bill
     
  16. Dec 24, 2014 #15
    Yes.

    Merry Christmas
    Marceli
     
  17. Dec 31, 2014 #16
    I have finished reading recommended book. It much updated mine knowledge. I like bottom up description phenomena approach, therefore book should in beginning describes somehow what is time and distance. For example, If in quantum field time is discrete then distance must be too. Also seems for me to be nonsense if described fields creates distance, means space.
     
  18. Dec 31, 2014 #17

    bhobba

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    Neither of those are discrete in QFT. It assumes Special Relativity where in an inertial frame space is assumed Euclidean and time continuous. It's an explicit assumption of that model.

    Nothing in any of those references says anything even remotely like that.

    I get the feeling you are approaching this with preconceived ideas. That's not the best way to come to grips with this stuff.

    Thanks
    Bill
     
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