What is ↔ mean? in commutation relation?

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Thread starter rar0308
Start date Jun 12, 2013
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Commutation Mean Relation

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rar0308

Thread starter
Jun 12, 2013

I found this in Srednicki's QFTbook.
I don't know what ↔ means.
Help me, please

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Timo

Jun 12, 2013

Presumably "the same term as before, but with the two indices exchanged". It should be deductible from the context, though.

rar0308

Jun 12, 2013

Like this?

Bill_K

Science Advisor

Insights Author

Jun 12, 2013

Yes, like that. (Except you forgot the i.) This is Eq (34.4) in Srednicki.

What is ↔ mean? in commutation relation?

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What is ↔ mean? in commutation relation?

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