Ghost-free vector superfield actions in supersymmetric higher-derivative theories
Sign Up to like & getrecommendations! Published in 2017 at "Journal of High Energy Physics"
DOI: 10.1007/jhep09(2017)143
Abstract: A bstractWe systematically construct ghost-free higher-derivative actions of Abelian vector supermultiplets in four-dimensional N=1$$ \mathcal{N}=1 $$ global supersymmetric theories. After giving a simple example which illustrates that a naive introduction of a higher-derivative term gives… read more here.
Keywords: term; free vector; ghost free; vector superfield ... See more keywords
Polarized primordial gravitational waves in the ghost-free parity-violating gravity
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DOI: 10.1103/physrevd.101.043528
Abstract: The tests of parity symmetry in the gravitational interaction is an attractive issue in gravitational-wave astronomy. In the general theories of gravity with parity violation, one of the fundamental results is that primordial gravitational waves… read more here.
Keywords: gravitational waves; free parity; parity; primordial gravitational ... See more keywords
Generalized ghost-free propagators in nonlocal field theories
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DOI: 10.1103/physrevd.101.084019
Abstract: In this paper we present an iterative method to generate an infinite class of new nonlocal field theories whose propagators are ghost-free. We first examine the scalar field case and show that the pole structure… read more here.
Keywords: field theories; field; free propagators; generalized ghost ... See more keywords
Post-Newtonian parameter $γ$ and the deflection of light in ghost-free massive bimetric gravity
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DOI: 10.1103/physrevd.95.124049
Abstract: We consider the parametrized post-Newtonian (PPN) limit of ghost-free massive bimetric gravity with two mutually non-interacting matter sectors coupled to the two metrics. Making use of a gauge-invariant differential decomposition of the metric perturbations, we… read more here.
Keywords: ghost free; deflection; post newtonian; deflection light ... See more keywords
Ghost free systems with coexisting bosons and fermions
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DOI: 10.1103/physrevd.96.044015
Abstract: We study co-existence system of both bosonic and fermionic degrees of freedom. For such system with up to first derivatives in Lagrangian, we find Ostrogradsky-type ghost-free condition in Hamiltonian analysis, which is found to be… read more here.
Keywords: system; ghost free; systems coexisting; coexisting bosons ... See more keywords
Erratum: Wald Entropy for Ghost-Free, Infinite Derivative Theories of Gravity [Phys. Rev. Lett. 114, 201101 (2015)].
Sign Up to like & getrecommendations! Published in 2018 at "Physical review letters"
DOI: 10.1103/physrevlett.120.039901
Abstract: This corrects the article DOI: 10.1103/PhysRevLett.114.201101. read more here.
Keywords: wald entropy; ghost free; free infinite; entropy ghost ... See more keywords