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Conserved charge for boost !

by pinu
Tags: boost, charge, conserved
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Mar11-12, 10:35 AM
P: 8
In (3+1) dimension Poincare group has three types of Symmetries :

I. Space-time translations - 4
II. Spatial rotations -3 &
III. Boosts -3

Among them, (I) implies "conservation of 4-momentum" ,
(II) implies "conservation of angular momentum" ,

But what "Physical entity" is conserved for BOOSTS ??
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Mar11-12, 12:11 PM
P: 283
Look here and here.

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