arXiv subjects

Zheng-Wen Liu

Publications and source records attributed to Zheng-Wen Liu.

2 recordsLinked to original sources

arXiv2017

M5-branes in AdS$_4 \times Q^{1,1,1}$ spacetime

In this paper, we study the M5-brane configurations in AdS$_4 \times Q^{1,1,1}$ spacetime. We consider the configurations with an AdS$_2$ factor embedding into AdS$_4$, and manage to construct two solutions, which could be dual to line defects in the boundary gauge theory. Moreover we discuss their BPS nature and find that neither of them is supersymmetric. We show that the M5-brane with a R$_t$ or an AdS$_3$ factor found before is half-BPS.

hep-th↗

arXiv2015

Soft theorems in maximally supersymmetric theories

In this paper we study the supersymmetric generalization of the new soft theorem which was proposed by Cachazo and Strominger recently. At tree level, we prove the validity of the super soft theorems in both ${\cal N}=4$ super-Yang-Mills theory and ${\cal N}=8$ supergravity using super-BCFW recursion relations. We verify these theorems exactly by showing some examples.

hep-th↗