Particles traveling backwards in time

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Recently I heard that when a particle travels back in time it carries the opposite force to it traveling forward in time
For example if an electron travels back in time then it has positive charge.
I need to know if this is true or not and if so does if affect all types of particle such as;
Hadrons,leptons,baryons etc
 
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electrogluon said:
Recently I heard that when a particle travels back in time it carries the opposite force to it traveling forward in time
For example if an electron travels back in time then it has positive charge.
I need to know if this is true or not and if so does if affect all types of particle such as;
Hadrons,leptons,baryons etc

More or less, yes, this is accurate. An electron going backwards in time would have a positive charge. A proton going backward in time has a negative charge. Their mass is still positive. But most of the other property (charge, parity, etc.) values would be reversed.
 
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so does this apply to the particles involved in the Casimir effect?
 
electrogluon said:
so does this apply to the particles involved in the Casimir effect?

Yes, the same basic rules apply to virtual particles.
 
thanks i needed reassuring on it
 
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