Covariant Lagrange multiplier constrained higher derivative gravity with scalar projectors
| Authors | |
|---|---|
| Year of publication | 2011 |
| Type | Article in Periodical |
| Magazine / Source | Physics Letters B |
| MU Faculty or unit | |
| Citation | |
| Web | http://dx.doi.org/10.1016/j.physletb.2011.05.025 |
| Doi | http://dx.doi.org/10.1016/j.physletb.2011.05.025 |
| Field | Theoretical physics |
| Keywords | Higher derivative gravity |
| Description | We formulate higher derivative gravity with Lagrange multiplier constraint and scalar projectors. Its gauge-fixed formulation as well as vector fields formulation is developed and corresponding spontaneous Lorentz symmetry breaking is investigated. We show that the only propagating mode is higher derivative graviton while scalar and vector modes do not propagate. Despite to higher derivatives structure of the action, its first FRW equation is the first order differential equation which admits the inflationary universe solution. |
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