The Weiss variation of the gravitational action
The Weiss variation of the gravitational action
复制标题
引力作用的韦斯变分
DOI:
10.1007/s10714-018-2420-2
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发表时间:
2018
影响因子:
2.8
通讯作者:
Matzner, Richard A.
中科院分区:
文献类型:
--
作者:
Feng, Justin C.;Matzner, Richard A.
The Weiss variational principle in mechanics and classical field theory is a variational principle which allows displacements of the boundary. We review the Weiss variation in mechanics and classical field theory, and present a novel geometric derivation of the Weiss variation for the gravitational action: the Einstein–Hilbert action plus the Gibbons–Hawking–York boundary term. In particular, we use the first and second variation of area formulas (we present a derivation accessible to physicists in an “Appendix”) to interpret and vary the Gibbons–Hawking–York boundary term. The Weiss variation for the gravitational action is in principle known to the Relativity community, but the variation of area approach formalizes the derivation, and facilitates the discussion of time evolution in General Relativity. A potentially useful feature of the formalism presented in this article is that it avoids an explicit 31 decomposition in the bulk spacetime.
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DOI:
10.1016/b978-0-444-64112-0.15001-4
发表时间:
2019
期刊:
Nonequilibrium Thermodynamics
影响因子:
--
作者:
T. J. Crawford;J. Goedecke;P. Haas;E. Lauga;J. Munro;J. Tsang
通讯作者:
J. Tsang
影响因子:
5
作者:
I. Booth;R. Mann
通讯作者:
R. Mann
DOI:
10.1090/gsm/077
发表时间:
2018
期刊:
--
影响因子:
--
作者:
B. Chow;P. Lu;Lei Ni
通讯作者:
B. Chow;P. Lu;Lei Ni
DOI:
10.1098/rspa.1936.0143
发表时间:
1936
期刊:
Proceedings of The Royal Society A: Mathematical, Physical and Engineering Sciences
影响因子:
--
作者:
P. Weiss
通讯作者:
P. Weiss
影响因子:
--
作者:
U. Gerlach
通讯作者:
U. Gerlach