Highly effective action from largeNgauge fields
نویسندگان
چکیده
منابع مشابه
Finite Temperature Nonlocal Effective Action for Scalar Fields
Scalar fields at finite temperature are considered in four dimensional ultrastatic curved spacetime. One loop nonlocal effective action at finite temperature is found up to the second order in curvature expansion. This action is explicitly infrared finite. In the high temperature expansion of free energy, essentially nonlocal terms linear in temperature are derived. e-mail: [email protected]...
متن کاملEffective Action of Matter Fields in Four-Dimensional String Orientifolds
We study various aspects of the Kähler metric for matter fields in N = 1, 2 orientifold compactifications of type IIB string theory. The result has an infrared-divergent part which reproduces the field-theoretical anomalous dimensions, and a moduli-dependent part which comes from N = 2 sectors of the orientifold. For the N = 2 orientifolds, we also compute the disk amplitude for two matter fiel...
متن کاملEffective action for scalar fields and generalised zeta-function regularisation
Motivated by the study of quantum fields in a Friedman-Robertson-Walker (FRW) spacetime, the one-loop effective action for a scalar field defined in the ultrastatic manifold R × H/Γ, H/Γ being the finite volume, non-compact, hyperbolic spatial section, is investigated by a generalisation of zeta-function regularisation. It is shown that additional divergences may appear at one-loop level. The o...
متن کاملp-BRANE ACTION FROM GRAVI-DILATON EFFECTIVE ACTION
Using a special ansatz for the metric, by straightforward computation we prove that gravi-dilaton effective action in higher dimensions is reduced to the p-brane action. The dual symmetry of the generic type a ←→ 1 a is an important symmetry of the reduced action. Pacs numbers: 11.10.Kk, 04.50.+h, 12.60.-i July/2000 ∗ [email protected]
متن کاملCritical Exponents from the Effective Average Action
We compute the critical behaviour of three-dimensional scalar theories using a new exact non-perturbative evolution equation. Our values for the critical exponents agree well with previous precision estimates.
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: Physical Review D
سال: 2014
ISSN: 1550-7998,1550-2368
DOI: 10.1103/physrevd.90.086006