4 papers
Reduction of topological invariants on null hypersurfaces
Jiang Long, Xin-Hao Zhou
Gravitational helicity flux density represents the angular distribution of helicity flux in general relativity. In this work, we explore its relationship to the reduction of topolo…
Extrapolating the massive fields to future timelike infinity
Wen-Bin Liu, Jiang Long
It is well-known that future timelike infinity () in four-dimensional Minkowski spacetime is conformal to the unit three-dimensional hyperboloid (). We asymptotically exp…
Thermal correlator at null infinity
Jiang Long, Hong-Yang Xiao
We study the thermal Carrollian correlators at null infinity in the real-time formalism. We derive the Feynman rules to calculate these correlators in the position space. We comput…
Quantum flux operators in the fermionic theory and their supersymmetric extension
Si-Mao Guo, Wen-Bin Liu, Jiang Long
We construct quantum flux operators with respect to the Poincaré symmetry in the massless Dirac theory at future null infinity. An anomalous helicity flux operator emerges from the…