Results 1 to 2 of 2

Thread: Destruction of virtual particles and virtual particle pairs

  1. #1 Destruction of virtual particles and virtual particle pairs 
    Forum Freshman
    Join Date
    Jun 2009
    I'm trying to understand the process that destroys particles very shortly after they "appear". I have read that they are usually annihilated by a virtual antiparticle, much in the same way as can happen to real particles. However, is this always the case? And if so, is it an intrinsic property of these particles to appear in pairs and why exactly is this?

    In other words: could a virtual (anti)particle be created on its "own", without a partner, for example because of the Heisenberg time-energy uncertainty relation, simply because it exists too briefly for it to have any real energy? Apparently, a virtual pair can be split up (Hawking radiation), but can they also be created that way?

    Reply With Quote  


  3. #2  
    Forum Freshman
    Join Date
    Jan 2013
    You have to look at the various conservation laws to understand why they come in pairs. Conservation of energy, charge, fermion number, etc., all constrain what type of virtual particles can be created. This depends on the process, but even virtual particles have to obey these conservation laws.

    It is possible to split up virtual particle pairs using an external field, but then they become real particles.

    Reply With Quote  

Similar Threads

  1. .
    By NinjaShock in forum Physics
    Replies: 1
    Last Post: March 12th, 2012, 07:30 AM
  2. Virtual Particles?
    By GiantEvil in forum Physics
    Replies: 2
    Last Post: February 13th, 2011, 04:45 PM
  3. Virtual Particles and String Theory
    By DanielHendrycks in forum Physics
    Replies: 2
    Last Post: June 3rd, 2010, 09:16 PM
  4. Virtual Machines ... XEN , VMware, Virtual box ....
    By m_krispy in forum Computer Science
    Replies: 0
    Last Post: November 27th, 2009, 09:32 AM
  5. Are virtual particles affected by gravity?
    By KALSTER in forum Physics
    Replies: 12
    Last Post: December 6th, 2007, 04:03 PM
Posting Permissions
  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts