Gauge origin independence in finite basis sets and perturbation theory
نویسندگان
چکیده
منابع مشابه
Finite Temperature Perturbation Theory and Large Gauge Invariance
We examine finite temperature perturbation theory for Chern-Simons theories, in the context of an analogue 0 + 1-dimensional model. In particular, we show how nonextensive terms arise in the perturbative finite temperature effective action, using both the real-time and imaginary-time formalisms. We illustrate how large gauge invariance is restored at all orders, despite being broken at any give...
متن کاملGauge and motion in perturbation theory
Through second order in perturbative general relativity, a small compact object in an external vacuum spacetime obeys a generalized equivalence principle: although it is accelerated with respect to the external background geometry, it is in free fall with respect to a certain effective vacuum geometry. However, this single principle takes very different mathematical forms, with very different b...
متن کاملGauge-invariant cosmological perturbation theory with seeds.
Gauge-invariant cosmological perturbation theory is extended to handle perturbations induced by seeds. A calculation of the Sachs-Wolfe effect is presented. A second-order differential equation for the growth of density perturbations is derived and the perturbation of Liouville's equation for collisionless particles is also given. The results are illustrated by a simple analytic example of a si...
متن کاملGauge Couplings and their M – Theory Origin
We work out the relation between automorphic forms on SO(2+s, 2, Z) and gauge one– loop corrections of heterotic K3×T 2 string compactifications for the cases s = 0, 1. We find that one–loop gauge corrections of any orbifold limit of K3 with arbitrary choice of gauge bundles can always be expressed by their instanton numbers and generic automorphic forms. These functions classify also one–loop ...
متن کاملFermionization and Convergent Perturbation Expansions in Chern-simons Gauge Theory
We show that Chern-Simons gauge theory with appropriate cutoffs is equivalent, term by term in perturbation theory, to a Fermionic theory with a nonlocal interaction term. When an additional cutoff is placed on the Fermi fields, this Fermionic theory gives rise to a convergent perturbation expansion. This leads us to conjecture that Chern-Simons gauge theory also gives rise to convergent pertur...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Chemical Physics Letters
سال: 2017
ISSN: 0009-2614
DOI: 10.1016/j.cplett.2017.05.003