论文标题
明确的差异性破坏，无需条件和中小型企业的重力部门
Explicit Diffeomorphism Breaking, No-go Conditions, and the Gravity Sector of the SME
论文作者
论文摘要
简短地回顾了当重力理论中包括明确打破差异不变性的固定非动力背景时可能发生的问题。总结了对标准模型扩展（SME）的影响，包括最近的结果表明如何修改中小型企业以适应这种固定的非动力背景。
A brief recap is given of issues that can occur when fixed nondynamical backgrounds that explicitly break diffeomorphism invariance are included in gravity theories. Implications for the Standard-Model Extension (SME) are summarized, including recent results showing how the SME can be modified to accommodate such fixed nondynamical backgrounds.
