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Result of Time Dialation Under Theoretical Warp Travel?

  1. Apr 5, 2015 #1
    I was looking at Time Dialation a bit today and some of the experiments with it. Considering time goes approximately 1/3 as fast as normal, under 100% the speed of light, what would happen if you went past the speed of light with a craft capable of warping.
    Would it have no effect due to the fact space is moving and not the ship. Or could space instead be dilated? Just some food for thought.

    *sidenote: considering light goes 100% of light could it actually be going much faster, except the time dilation makes it appear slower?
     
  2. jcsd
  3. Apr 5, 2015 #2
    If you are on a hypothetical space ship traveling at near light speed, time will appear to be normal for you.
    Your clock will appear to slow down as seen by an observer standing at the place of your departure.

    The only candidate for a warp drive is the Alcubierre drive.
    http://en.wikipedia.org/wiki/Alcubierre_drive.
    This does indeed involve changing the shape of space, or dilation of space if you like
     
  4. Apr 5, 2015 #3

    mfb

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    1/3 corresponds to a speed below the speed of light. You cannot reach the speed of light, or even exceed it. You might be able to shorten the distance to your target, but that is independent of time dilation then. The details how this warping is done can still influence how the journey will look like (and how long it will take) for observers outside.
     
  5. Apr 5, 2015 #4
    Even if technical hurdles appear to be solved, no FTL model solves causality paradoxes, if it also allows FTL to occur in multiple inertial reference frames.
     
  6. Apr 5, 2015 #5
    I wouldn't say that the Alcubierre drive idea is a technical solution, it's just a solution that doesn't violate relativity in principle.
    For it work, exotic forms of matter are required, which most likely can't exist.
    There is also the problem that, according to some, deceleration from the warped state would release energy sufficient to destroy everything in the vicinity ahead of the ship, and the problems don't end there.
    There are also as you said causality paradoxes to contend with.
     
  7. Apr 5, 2015 #6

    pervect

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    Where did this 1/3 number come from, and what velocity does it correspond do?
    As a general rule, relativity says that you can't go as fast as light, so it can't answer the question about what happens if you hypothetically violate it.
     
  8. Apr 5, 2015 #7

    DaveC426913

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    To bone up on the effects of relativistic velocities on time dilation, have a look at the super-simple relativistic calculator at the bottom of this page:

    http://www.1728.org/reltivty.htm
     
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