Effective potential and asymmetric instantons
نویسندگان
چکیده
منابع مشابه
New instantons in the double - well potential
A new instanton solution is found in the quantum-mechanical double-well potential with a four-fermion term. The solution has finite action, S = −m3 3λ − ( mA 4 √ 2λ + g 261m 8960 ) ǫξiξjξkξl, where A is a bosonic collective coordinate, ξi, i = 1, ..., 4 are fermionic collective coordinates and g,m and λ are coupling constants. We explain why in general the instanton action can depend on collect...
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A new solution of the Euclidean equations of motion is found for the quantummechanical double-well potential with a four-fermion term. It extends the usual kinkinstanton solution in which both the kink field and the fermionic fields contain a finite number of new terms which are polynomial in the fermionic collective coordinates. The solution has finite action, S = −m3 3λ + 9 140 mg ǫξiξjξkξl, ...
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ژورنال
عنوان ژورنال: Il Nuovo Cimento A
سال: 1988
ISSN: 0369-3546,1826-9869
DOI: 10.1007/bf02730617