## Abstract

We study the dynamics of dark energy in the presence of a 2-form field coupled to a canonical scalar field ϕ. We consider the coupling proportional to e ^{ −μϕ/M pl } H _{αβγ} H ^{αβγ} and the scalar potential V(ϕ)∝e ^{ −λϕ/M pl } , where H _{αβγ} is the 2-form field strength, μ,λ are constants, and M _{pl} is the reduced Planck mass. We show the existence of an anisotropic matter-dominated scaling solution followed by a stable accelerated fixed point with a non-vanishing shear. Even if λ≥O(1), it is possible to realize the dark energy equation of state w _{DE} close to −1 at low redshifts for μ≫λ. The existence of anisotropic hair and the oscillating behavior of w _{DE} are key features for distinguishing our scenario from other dark energy models like quintessence.

Original language | English |
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Pages (from-to) | 396-404 |

Number of pages | 9 |

Journal | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics |

Volume | 793 |

DOIs | |

Publication status | Published - 2019 Jun 10 |

Externally published | Yes |

## ASJC Scopus subject areas

- Nuclear and High Energy Physics