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Negetive Energy Can it be observed?

  1. Aug 20, 2009 #1
    Negetive Energy!! Can it be observed?

    While deriving Einstein's energy mass relation , we observe that
    E2 = m2 x c4
    but by taking square roots of both sides,
    we get:
    E=+- mc2
    we accept the positive energy but neglect the negative energy.why?
    can't it be that,this negative energy or antienergy can be thought to as gravity.
    because when we give energy to an object,it excites or tries to scatter. but on the other hand Gravity tries to restrct the scattering and tries to bind the objects towards itself.Please think about it...
     
  2. jcsd
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