2 citations · 2 across the 13 of their papers we have counts for
4 papers · 1 filter
The perturbative Ricci flow in gravity
Robert V. Harlander, Yannick Kluth, Jonas T. Kohnen +1
We develop a perturbative formulation of the Ricci flow in gravity. Following steps analogous to the gradient flow in QCD, we supplement the usual Feynman rules for perturbative gr…
Heavy-Meson Bag Parameters using Gradient Flow
Matthew Black, Robert V. Harlander, Jonas T. Kohnen +4
We demonstrate the use of the gradient flow combined with the short flow-time expansion (GF+SFTX) as a renormalization procedure for four-quark operator matrix elements and associa…
Bag Parameters for Heavy Meson Lifetimes
Matthew Black, Robert V. Harlander, Jonas T. Kohnen +4
We calculate the dimension-six four-quark matrix elements describing heavy-meson lifetime ratios using the gradient flow with its short flow-time expansion as a renormalizat…
The gradient-flow coupling of three-and four-dimensional QED
Lars Georg, Robert V. Harlander, Robert H. Mason
We evaluate the QED coupling in the gradient-flow scheme in three and four space-time dimensions. Our general result applies to any theory with a U(1) gauge field coupled to arbita…