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

Energy and Measurements

  1. Sep 18, 2011 #1


    User Avatar
    Gold Member

    Say we have a stream of particles, emitted from a source, traveling freely in one direction and then colliding with some sort of screen.

    Between the source and the screen the particles are said to be in that indefinite state of limbo known as coherent superposition. Do the particles in this state, since they are not interacting with their environment (other particles), meet the definition of "conservative systems"?

    Conversely, does EVERY exchange of energy (interacting with other particles) constitute a "measurement"?

    As always, thanks in advance.
  2. jcsd
  3. Sep 20, 2011 #2
    Hi, Are they (the particles in flight) interacting or not ?

    Best regards,

  4. Sep 26, 2011 #3


    User Avatar
    Gold Member

    The particles in flight are not interacting.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook