Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Parallel Universe

  1. Aug 13, 2015 #1
    if parallel universe are real... means according to schordinger equation..many possible states..then when we chose any one state..then other options or i mean possible states would dissolve into one single option whom to chose... or remains present as a reality...????
     
  2. jcsd
  3. Aug 13, 2015 #2

    mfb

    User Avatar
    2016 Award

    Staff: Mentor

  4. Aug 13, 2015 #3
    what does it mean?
     
  5. Aug 13, 2015 #4

    mfb

    User Avatar
    2016 Award

    Staff: Mentor

    What does what mean?
     
  6. Aug 13, 2015 #5
    please are you believe in paralllel universe
     
  7. Aug 13, 2015 #6
    There is nothing in the many worlds interpretations of QM which implies a 'choice'.
    Also the many worlds' interpretations are not the only interpretations, there are others which do not require many worlds.
    Even those interpretations which do involve many worlds do not necessesaraly imply that actual physical realisations of alternative realities exist.
    The alternative worlds can be just 'possibilities'.
     
  8. Aug 13, 2015 #7
    when we say any electron will be in many possibile states..then it means many parallel worlds here

    these possibilties are in real..mark templer said..they are in real...
     
    Last edited by a moderator: Aug 13, 2015
  9. Aug 13, 2015 #8

    mfb

    User Avatar
    2016 Award

    Staff: Mentor

    No. No interpretation is saying that.

    Please do not make multiple posts in a row, you can edit your own posts if you want to add something.
    At least for me, it is hard to read your posts.
     
  10. Aug 13, 2015 #9
    Your question is very incoherent. Can you please rephrase?
     
  11. Aug 14, 2015 #10
    when we say .according to quantum mechanics..there are may possibilities of any event ..until we observe.. when we observe one possibility ..then other possibilities still remains?
     
    Last edited: Aug 14, 2015
  12. Aug 14, 2015 #11

    bhobba

    User Avatar
    Science Advisor
    Gold Member

    That's entirely interpretation dependant. In Many Worlds each possibility is a new world. But in most others an observation once done - then that's it - the others no longer are relevant.

    Thanks
    Bill
     
  13. Aug 14, 2015 #12
    but Mark templer says other possibilities remains present
     
  14. Aug 14, 2015 #13

    bhobba

    User Avatar
    Science Advisor
    Gold Member

    As I said it depends on interpretation. But in the majority that's simply not true.

    Thanks
    Bill
     
  15. Aug 14, 2015 #14
    can you breifly explain
     
  16. Aug 14, 2015 #15

    bhobba

    User Avatar
    Science Advisor
    Gold Member

    In QM we have the formalism and interpretations of that formalism. Everyone agrees on the formalism - its the interpretations that are debated.

    For the modern view of the formalism check out:
    http://www.scottaaronson.com/democritus/lec9.html

    As you can see its simply an extension of probability theory. And just like in probability once an outcome occurs, eg throwing a dice, that's it, the outcome occurs and the rest are irrelevant. But there are some interpretations that say - no - each possible outcome is a separate world and what happens is simply we experience that world. Even in standard probability theory you can take that view - it would be a very weird view to take - but you can do it. The reason its taken seriously in QM is it turns out to be very beautiful and mathematically elegant - but it's not to everyone's taste - including mine.

    QM interpretations mostly are arguments about the meaning of probability:
    http://math.ucr.edu/home/baez/bayes.html

    Thanks
    Bill
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook