Gravidynamics,spinodynamics and electrodynamics within the framework of gravitational quantum field theory  

作　　者：Yue-Liang Wu 

机构地区：[1]International Centre for Theoretical Physics Asia-Pacific,University of Chinese Academy of Sciences,Beijing 100190,China [2]Institute of Theoretical Physics,Chinese Academy of Sciences,Beijing 100190,China [3]Taiji Laboratory for Gravitational Wave Universe(Beijing/Hangzhou),University of Chinese Academy of Sciences,Bejing 100049,China [4]School of Fundamental Physics and Mathematical Sciences,Hangzhou Institute for Advanced Study,University of Chinese Academy of Sciences,Hangzhou310024,China

出　　处：《Science China(Physics,Mechanics & Astronomy)》2023年第6期148-190,共43页中国科学：物理学、力学、天文学（英文版）

基　　金：supported by the National Key Research and Development Program of China(Grant No.2020YFC2201501);the National Natural Science Foundation of China(Grant Nos.12147103(special fund to the center for quanta-to-cosmos theoretical physics);and 11821505);the Strategic Priority Research Program of the Chinese Academy of Sciences(Grant No.XDB23030100);the consulting project of the division of Chinese Academy of Sciences。

摘　　要：By noticing the fact that the charged leptons and quarks in the standard model are chirality-based Dirac spinors since their weak interaction violates maximally parity symmetry though they behave as Dirac fermions in electromagnetic interaction,we show that such a chirality-based Dirac spinor possesses not only electric charge gauge symmetry U(1)but also inhomogeneous spin gauge symmetry WS(1,3)=SP(1,3)?W1,3,which reveals the nature of gravity and spacetime.The gravitational force and spin gauge force are governed by the gauge symmetries W1,3and SP(1,3),respectively,and a biframe spacetime with globally fiat Minkowski spacetime as base spacetime and locally fiat gravigauge spacetime as a fiber is described by the gravigauge field through emergent non-commutative geometry.The gauge-geometry duality and renormalizability in gravitational quantum field theory(GQFT)are carefully discussed.A detailed analysis and systematic investigation on gravidynamics and spinodynamics as well as electrodynamics are carried out within the framework of GQFT.A full discussion on the generalized Dirac equation and Maxwell equation as well as Einstein equation and spin gauge equation is made in biframe spacetime.New effects of gravidynamics as extension of general relativity are particularly analyzed.All dynamic equations of basic fields are demonstrated to preserve the spin gauge covariance and general coordinate covariance due to the spin gauge symmetry and emergent general linear group symmetry GL(1,3,R),so they hold naturally in any spinning reference frame and motional reference frame.

关 键 词：inhomogeneous spin gauge symmetry locally flat gravigauge spacetime gravitational relativistic quantum mechanics with generalized Dirac equation gravidynamics with generalized Einstein equation generalized Maxwell equation in any motional and spinning reference frame 

分 类 号：O469[理学—凝聚态物理]