67 citations · 239 across the 12 of their papers we have counts for
12 papers
Algebraic Consistency and Explicit Construction of One-Loop BCJ Numerators of Yang-Mills and Related Theories
Yi-Jian Du, Chih-Hao Fu, Yihong Wang +1
We study the algebraic structure of one-loop BCJ numerators in Yang-Mills and related theories. Starting from the propagator matrix that connects colour-ordered integrands to numer…
HEFT Numerators from Kinematic Algebra
Chih-Hao Fu, Pierre Vanhove, Yihong Wang
We derive the kinematic numerator factors for heavy-mass effective field theory from the field theory limit of the string theory vertex operator kinematic algebra introduced in arX…
Cluster Alphabets from Generalized Worldsheets: A Geometric Approach to Finite Types
Peng Zhao, Yihong Wang
We provide a systematic derivation of cluster alphabets of finite types. The construction is based on a geometric realization of the generalized worldsheets by gluing and folding a…
Building Momentum Kernel from Shapovalov Form
Chih-Hao Fu, Yihong Wang
These notes are an extended version of the talks given by the authors at the XIV International Workshop on Lie Theory and Its Applications in Physics, Sofia, Bulgaria, 20-26 June 2…
Notes on Worldsheet-Like Variables for Cluster Configuration Spaces
Song He, Yihong Wang, Yong Zhang +1
We continue the exploration of various appearances of cluster algebras in scattering amplitudes and related topics in physics. The cluster configuration spaces generalize the famil…
Carving out the Space of Open-String S-matrix
Yu-tin Huang, Jin-Yu Liu, Laurentiu Rodina +1
In this paper, we explore the open string amplitude's dual role as a space-time S-matrix and a 1D CFT correlation function. We pursue this correspondence in two directions. First,…
BCJ, worldsheet quantum algebra and KZ equations
Chih-Hao Fu, Yihong Wang
We exploit the correspondence between twisted homology and quantum group to construct an algebra explanation of the open string kinematic numerator. In this setting the representat…
A Vertex Operator Algebra Construction of the Colour-Kinematics Dual numerator
Chih-Hao Fu, Pierre Vanhove, Yihong Wang
We derive a vertex operator based expression for the kinematic numerators of Yang-Mills amplitudes by applying the momentum kernel formalism to open string amplitudes. The expressi…
Estimation for Entanglement Negativity of Free Fermions
Christopher P. Herzog, Yihong Wang
In this letter we study the negativity of one dimensional free fermions. We derive the general form of the symmetric term in moments of the partial transposed (red…
Note on Soft Graviton theorem by KLT Relation
Yi-Jian Du, Bo Feng, Chih-Hao Fu +1
Recently, new soft graviton theorem proposed by Cachazo and Strominger has inspired a lot of works. In this note, we use the KLT-formula to investigate the theorem. We have shown h…
A note on on-shell recursion relation of string amplitudes
Yung-Yeh Chang, Bo Feng, Chih-Hao Fu +3
In the application of on-shell recursion relation to string amplitudes, one challenge is the sum over infinite intermediate on-shell string states. In this note, we show how to sum…
BCFW Recursion Relation with Nonzero Boundary Contribution
Bo Feng, Junqi Wang, Yihong Wang +1
The appearance of BCFW on-shell recursion relation has deepen our understanding of quantum field theory, especially the one with gauge boson and graviton. To be able to write the B…