Towards the nonlinear regime in extensions to GR: assessing possible options
Towards the nonlinear regime in extensions to GR: assessing possible options
复制标题
走向广义相对论扩展中的非线性机制：评估可能的选择
DOI：
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发表时间：
2018
影响因子：
3.5
通讯作者：
L. Lehner
中科院分区：
文献类型：
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作者：
Gwyneth Allwright;L. Lehner
测试广义相对论和探索可能的偏离已经收到了进一步的投入，可以通过在强引力/高动态场景中发射的引力波以及通过精确敏感的宇宙学观测来实现这一点。然而，大多数扩展在数学层面上都存在严重的病态，这阻碍了对假定理论的彻底探索。借助捕获典型病理的模型问题，我们探索了控制它们的建议方法。我们发现修改方程来控制高阶梯度的方法既稳健又高效。
Testing general relativity and exploring possible departures has received further input with the possibility to do so through gravitational waves emitted in strongly gravitating/highly dynamical scenarios and also through the availability of exquisitely sensitive cosmological observations. However, most extensions suffer from severe pathologies at the mathematical level which have stymied a thorough exploration of putative theories. With the aid of a model problem which captures typical pathologies, we explore suggested methods to control them. We find that the approach that modifies the equations to control higher-order gradients is both robust and efficient.
影响因子：
5.4
作者：
S. Endlich;V. Gorbenko;Junwu Huang;L. Senatore
通讯作者：
S. Endlich;V. Gorbenko;Junwu Huang;L. Senatore
影响因子：
2.1
作者：
Duncan A. Brown;K. Vahi;M. Taufer;Von Welch;E. Deelman;Lorena A. Barba;George K. Thiruvathukal
通讯作者：
Duncan A. Brown;K. Vahi;M. Taufer;Von Welch;E. Deelman;Lorena A. Barba;George K. Thiruvathukal
影响因子：
5
作者：
M. Okounkova;L. Stein;M. Scheel;D. Hemberger
通讯作者：
M. Okounkova;L. Stein;M. Scheel;D. Hemberger