3 citations · 3 across the 6 of their papers we have counts for
6 papers
Critical Behavior of Photon Rings in Kerr-Bertotti-Robinson Spacetime
Xi Wan, Zhenyu Zhang, Fang-Stars Wei +2
In this work, we investigate the critical behavior of photon rings in the Kerr-Bertotti-Robinson spacetime, describing a rotating black hole immersed in a background magnetic field…
Soft theorems based on differential operators from gravity to Yang-Mills and BAS
Fang-Stars Wei
This note study the soft behavior of Yang-Mills (YM) and bi-adjoint scalar (BAS) amplitudes at tree level, by using transmutation operators proposed by Cheung, Shen and Wen. By act…
On soft factors and transmutation operators
Fang-Stars Wei, Kang Zhou
The well known soft theorems state the specific factorizations of tree level gravitational (GR) amplitudes at leading, sub-leading and sub-sub-leading orders, with universal soft f…
Note on tree NLSM amplitudes and soft theorems
Kang Zhou, Fang-Stars Wei
We use the universality of single soft behavior, together with the double copy structure, to completely determine the tree amplitudes of non-linear sigma model (NLSM). We first fig…
Expanding single trace YMS amplitudes with gauge invariant coefficients
Fang-Stars Wei, Kang Zhou
In this note, we use the new bottom up method based on soft theorems to construct the expansion of single-trace Yang-Mills-scalar amplitudes recursively. The resulted expansion man…
Tree and -loop fundamental BCJ relations from soft theorems
Fang-Stars Wei, Kang Zhou
We provide a new derivation of the fundamental BCJ relation among double color ordered tree amplitudes of bi-adjoint scalar theory, based on the leading soft theorem for external s…