3 papers
gr-qc2020
Gravitational waves from inflation with antisymmetric tensor field
Sandeep Aashish, Abhilash Padhy, Sukanta Panda
We build upon the past studies of inflation with rank-2 antisymmetric tensor field, including here the tensor perturbations to metric. We perform a comprehensive analysis of the ba…
gr-qc2019
Avoiding instabilities in antisymmetric tensor field driven inflation
Sandeep Aashish, Abhilash Padhy, Sukanta Panda
Models of inflation with antisymmetric tensor studied in the past are plagued with ghost instability even in an unperturbed FRW background. We show that it is possible to avoid gho…
gr-qc2018
Inflation with an antisymmetric tensor field
Sandeep Aashish, Abhilash Padhy, Sukanta Panda +1
We investigate the possibility of inflation with models of antisymmetric tensor field having minimal and nonminimal couplings to gravity. Although the minimal model does not suppor…