期刊
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
卷 -, 期 2, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/1475-7516/2013/02/042
关键词
modified gravity; gravity; quantum field theory on curved space
资金
- Cambridge Overseas Trust
- Department of Energy [DE-FG02-12ER41810]
- STFC [ST/I002006/1, ST/J002798/1] Funding Source: UKRI
- Science and Technology Facilities Council [ST/I002006/1, ST/J002798/1] Funding Source: researchfish
We prove that the linear instability in a non-degenerate higher derivative theory, the Ostrogradski instability, can only be removed by the addition of constraints if the original theory's phase space is reduced.
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