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Forums
Physics
Quantum Physics
When should I use a plus or minus sign in space and time translations?
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[QUOTE="Silviu, post: 6046905, member: 588158"] Hello! I am a bit confused about the sign in space and time translation operators acting on a state. I found it with both plus and minus sign and I am not sure which one to use when. The equations I am talking about are: $$U(t)=e^{\pm iHt/\hbar}$$ and $$T(x)=e^{\pm ixp/\hbar}$$. Is it a plus or a minus in the exponent? Thank you! [/QUOTE]
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Forums
Physics
Quantum Physics
When should I use a plus or minus sign in space and time translations?
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