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pro vyhledávání: '"Liu, Wen‐bin"'
Carrollian amplitude is the natural object that defines the correlator of the boundary Carrollian field theory. In this work, we will elaborate on its proper definition in general dimensions. We use the vielbein field on the unit sphere to define the
Externí odkaz:
http://arxiv.org/abs/2407.20816
The helicity flux operator is a fascinating quantity that characterizes the angular distribution of the helicity of radiative photons or gravitons and it has many interesting physical consequences. In this paper, we construct the electromagnetic heli
Externí odkaz:
http://arxiv.org/abs/2407.20077
In this paper, we derive the Carrollian amplitude in the framework of bulk reduction. The Carrollian amplitude is shown to relate to the scattering amplitude by a Fourier transform in this method. We propose Feynman rules to calculate the Carrollian
Externí odkaz:
http://arxiv.org/abs/2402.04120
Autor:
Liu, Wen-Bin, Long, Jiang
We propose a holographic dictionary which comes from reducing the bulk theories in an asymptotically flat spacetime to its null infinity. A general boundary theory is characterized by a fundamental field, an infinite tower of descendant fields, const
Externí odkaz:
http://arxiv.org/abs/2401.11223
We construct Carrollian higher spin field theories by reducing the bosonic Fronsdal theories in flat spacetime to future null infinity. We extend the Poincar\'e fluxes to quantum flux operators which generate Carrollian diffeomorphism, namely supertr
Externí odkaz:
http://arxiv.org/abs/2311.11361
We construct Carrollian scalar field theories in general dimensions, mainly focusing on the boundaries of Minkowski and Rindler spacetime, whose quantum flux operators form a faithful representation of Carrollian diffeomorphism up to a central charge
Externí odkaz:
http://arxiv.org/abs/2309.16572
Autor:
Liu, Wen-Bin, Long, Jiang
We reduce the gravitational theory in an asymptotically flat spacetime to future null infinity. We compute the Poincar\'e flux operators at future null infinity and construct the supertranslation and superrotation generators. The generators are shown
Externí odkaz:
http://arxiv.org/abs/2307.01068
Autor:
Liu, Wen-Bin, Long, Jiang
In this paper, we reduce the electromagnetic theory to future null infinity and obtain a vector theory at the boundary. We compute the Poincar\'e flux operators which could be generalized. We quantize the vector theory, and impose normal order on the
Externí odkaz:
http://arxiv.org/abs/2304.08347
Autor:
Liu, Wen-Bin, Long, Jiang
We reduce the massless scalar field theory in Minkowski spacetime to future null infinity. We compute the Poincar\'e flux operators, which can be generalized and identified as the supertranslation and superrotation generators. These generators are sh
Externí odkaz:
http://arxiv.org/abs/2210.00516
Autor:
Liu, Wen-Bin, Ma, Dong-Jun, Qian, Jian-Zhen, Zhang, Ming-Yu, He, An-Min, Liu, Nan-Sheng, Wang, Pei
In this study, we investigate high-accuracy three-dimensional surface detection in smoothed particle hydrodynamics for free-surface flows. A new geometrical method is first developed to enhance the accuracy of free-surface particle detection in compl
Externí odkaz:
http://arxiv.org/abs/2205.02742