Recent content by ananya J

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    Solve Peskin's QFT Eqn 2.54 with Hints

    i jumped into conclusions before reading the text further. sorry. anyways thanks so much for ur time & help.:smile:
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    Solve Peskin's QFT Eqn 2.54 with Hints

    QFT Peskin p.30 eqn 2.54 Homework Statement i am perplexed with eqn 2.54 peskins introductory qft. just can't make out how to arrive at it from the previous step. i think that there are dirac delta funtions involved but simply can't make it out. can somebody help? provide some hint? thanks...
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    QFT: Is a^+_{-p}\ a_{-p} = a^+_{p}\ a_{p}?

    twas.:smile:
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    QFT: Is a^+_{-p}\ a_{-p} = a^+_{p}\ a_{p}?

    Homework Statement Hi I was trying to get the expression for H ,eqn 2.31 on page 21 peskins introductory QFT Homework Equations I get the final expression only if a^+_{-p}\ a_{-p} = a^+_{p}\ a_{p} so pls tell me if a^+_{-p}\ a_{-p} = a^+_{p}\ a_{p} (+ stands for dagger) thanks in advance