Notices
Results 1 to 3 of 3

Thread: Quantum Entanglement

  1. #1 Quantum Entanglement 
    Forum Freshman
    Join Date
    Feb 2013
    Location
    The 4th Dimension
    Posts
    9
    During my adventures of wandering around this forum, I have heard the phrase "quantum entanglement" said various times, and likewise have heard various explanations to it. It makes me very hazy on the matter of what it is and I would greatly appreciate anyone willing to explain quantum entanglement to me, thank you.


    Reply With Quote  
     

  2.  
     

  3. #2  
    Moderator Moderator Markus Hanke's Avatar
    Join Date
    Nov 2011
    Location
    Ireland
    Posts
    7,172
    Quantum entanglement means that two or more quantum particles interact in a certain way, and then get separated afterwards, while maintaining some form of correlation. What happens is that, despite being spatially separated, they still act as systems and their quantum states remain correlated to each other. Take as a simple example two electrons - let our electrons interact first in an appropriate way, and then separate them. What you will find is that, if you measure for example the spin state of one of the electrons, the state of the other electron is automatically determined, even over large distances. So for example if you measure one electron to have a spin of +1/2, the other one will always have spin -1/2 due to the exclusion principle, no matter how far away it is, because they are entangled.


    Reply With Quote  
     

  4. #3  
    Forum Bachelors Degree Kerling's Avatar
    Join Date
    Jul 2012
    Location
    Copenhagen
    Posts
    440
    Most important, entanglement comes forward out of the indistinguishability of certain particles. If I cannot distinguis between the two, and the overal configuration allows different set-ups. (one excited, one de-excited) then, entanglement follows, because we cannot differentiate between the two.
    In the information age ignorance is a choice.
    Reply With Quote  
     

Similar Threads

  1. Replies: 8
    Last Post: January 14th, 2013, 03:26 PM
  2. Replies: 1
    Last Post: September 24th, 2011, 11:32 AM
  3. Quantum entanglement?
    By Light in forum Physics
    Replies: 13
    Last Post: August 29th, 2009, 10:00 AM
  4. Quantum Entanglement
    By Cold Fusion in forum Physics
    Replies: 13
    Last Post: August 15th, 2008, 08:44 PM
  5. Quantum entanglement
    By Gus in forum Physics
    Replies: 1
    Last Post: December 12th, 2006, 08:28 AM
Bookmarks
Bookmarks
Posting Permissions
  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •