Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Stulga, Dalius"'
We investigate off-shell perturbative renormalisation of pure quantum gravity for both background metric and quantum fluctuations. We show that at each new loop order, the divergences that do not vanish on-shell are constructed from only the total me
Externí odkaz:
http://arxiv.org/abs/2308.07382
We study $d$-dimensional scalar field theory in the Local Potential Approximation of the functional renormalization group. Sturm-Liouville methods allow the eigenoperator equation to be cast as a Schrodinger-type equation. Combining solutions in the
Externí odkaz:
http://arxiv.org/abs/2306.14643
Autor:
Morris, Tim R., Stulga, Dalius
This article is a review of functional $f(R)$ approximations in the asymptotic safety approach to quantum gravity. It mostly focusses on a formulation that uses a non-adaptive cutoff, resulting in a second order differential equation. This formulatio
Externí odkaz:
http://arxiv.org/abs/2210.11356
We study an $f(R)$ approximation to asymptotic safety, using a family of non-adaptive cutoffs, kept general to test for universality. Matching solutions on the four-dimensional sphere and hyperboloid, we prove properties of any such global fixed poin
Externí odkaz:
http://arxiv.org/abs/2111.05067
Publikováno v:
Communications Physics 1, 84 (2018)
Laguerre-Gauss beams, and more generally the orbital angular momentum of light (OAM) provide valuable research tools for optical manipulation, processing, imaging and communication. Here we explore the high-efficiency frequency conversion of OAM in a
Externí odkaz:
http://arxiv.org/abs/1805.08190
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 1, Pp 1-30 (2022)
Journal of High Energy Physics
Journal of High Energy Physics
We study an $f(R)$ approximation to asymptotic safety, using a family of non-adaptive cutoffs, kept general to test for universality. Matching solutions on the four-dimensional sphere and hyperboloid, we prove properties of any such global fixed poin