i am now reading the book by coleman, aspects of symmetry.(adsbygoogle = window.adsbygoogle || []).push({});

i am a bit interested in the instanton.

in his book, he discussed how to calculate the level splitting in a double well potential.

as for this splitting, it seems that he did not give an explicit expression of the coefficient K,

see his equation (2.41) on page 276.

how to calculate the fraction involving det?

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# Instanton by coleman

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