Weyl引力电磁学中的牛顿势
Newtonian Potential in Weyl Gravitoelectromagnetism
AI总结：
本文研究Weyl引力电磁学的规范结构，将其应用于张量场介导的巴巴散射，推导零温极限下的牛顿势，发现高温下该势会因热场动力学效应被抑制，呈现热屏蔽机制。
AI中文摘要：
本文研究了Weyl引力电磁学（GEM）形式论的规范结构，结果表明该理论虽存在额外传播模式，但仅有效自旋2部分对物理可观测量有贡献。基于此结果，将该形式论应用于张量场$A_{\mu\nu}$介导的巴巴散射（Bhabha scattering），并在零温极限下推导出牛顿引力势。通过热场动力学（TFD）形式论引入有限温度效应，发现低温下可恢复牛顿相互作用，高温下则逐渐被抑制，呈现热屏蔽机制，文中还简要讨论了该行为的物理起源及其可能对 underlying散射过程的依赖性。
英文摘要：
The gauge structure of the Weyl Gravitoelectromagnetic (GEM) formalism has been investigated, showing that although the theory admits additional propagating modes, only an effective spin-2 sector contributes to physical observables. Building on this result, the formalism is applied to Bhabha scattering mediated by the tensor field $A_{μν}$, and the Newtonian gravitational potential is derived in the zero-temperature limit. Finite-temperature effects are incorporated through the Thermo Field Dynamics (TFD) formalism. While the Newtonian interaction is recovered at low temperatures, it becomes progressively suppressed in the high-temperature regime, revealing a thermal screening mechanism. The physical origin of this behavior and its possible dependence on the underlying scattering process are briefly discussed.
