Gupta-Bleuler quantization for minimally coupled scalar fields in de Sitter space JP Gazeau, J Renaud, MV Takook Classical and Quantum Gravity 17 (6), 1415, 2000 | 180 | 2000 |

“Massive” spin-2 field in de Sitter space T Garidi, JP Gazeau, MV Takook Journal of Mathematical Physics 44 (9), 3838-3862, 2003 | 108 | 2003 |

“Massless” vector field in de Sitter universe T Garidi, JP Gazeau, S Rouhani, MV Takook Journal of mathematical physics 49 (3), 2008 | 93 | 2008 |

Dirac fields and thermal effects in the de Sitter universe P Bartesaghi, JP Gazeau, U Moschella, MV Takook Classical and Quantum Gravity 18 (21), 4373, 2001 | 86 | 2001 |

“Massive” vector field in de Sitter space JP Gazeau, MV Takook Journal of Mathematical Physics 41 (9), 5920-5933, 2000 | 86 | 2000 |

COVARIANT TWO-POINT FUNCTION FOR MINIMALLY COUPLED SCALAR FIELD IN de SITTER SPACE–TIME MV Takook Modern Physics Letters A 16 (26), 1691-1697, 2001 | 81 | 2001 |

Conformally invariant “massless” spin-2 field in the de Sitter universe M Dehghani, S Rouhani, MV Takook, MR Tanhayi Physical Review D—Particles, Fields, Gravitation, and Cosmology 77 (6), 064028, 2008 | 71 | 2008 |

Conformally invariant wave equations and massless fields in de Sitter spacetime S Behroozi, S Rouhani, MV Takook, MR Tanhayi Physical Review D—Particles, Fields, Gravitation, and Cosmology 74 (12), 124014, 2006 | 67 | 2006 |

Negative norm states in de Sitter space and QFT without renormalization procedure MV Takook International Journal of Modern Physics E 11 (06), 509-518, 2002 | 62 | 2002 |

A naturally renormalized quantum field theory S Rouhani, MV Takook International Journal of Theoretical Physics 48, 2740-2747, 2009 | 40 | 2009 |

Quantum field theory in de Sitter universe: ambient space formalism MV Takook arXiv preprint arXiv:1403.1204, 2014 | 37 | 2014 |

Krein regularization of QED B Forghan, MV Takook, A Zarei Annals of Physics 327 (9), 2388-2401, 2012 | 37 | 2012 |

QED effective action in Krein space quantization A Refaei, MV Takook Physics Letters B 704 (4), 326-333, 2011 | 36 | 2011 |

Conformal linear gravity in de Sitter space MV Takook, MR Tanhayi, S Fatemi Journal of Mathematical Physics 51 (3), 2010 | 34 | 2010 |

Casimir effect in Krein space quantization H Khosravi, M Naseri, S Rouhani, MV Takook Physics Letters B 640 (1-2), 48-51, 2006 | 34 | 2006 |

Discrete symmetries for spinor field in de Sitter space S Moradi, S Rouhani, MV Takook Physics Letters B 613 (1-2), 74-82, 2005 | 32 | 2005 |

Linear Weyl gravity in de Sitter universe MV Takook, MR Tanhayi Journal of High Energy Physics 2010 (12), 1-15, 2010 | 31* | 2010 |

Tree-level scattering amplitude in de Sitter space S Rouhani, MV Takook Europhysics Letters 68 (1), 15, 2004 | 31 | 2004 |

A natural renormalization of the one-loop effective action for scalar field in curved spacetime MV Takook International Journal of Modern Physics E 14 (02), 219-223, 2005 | 29 | 2005 |

Scalar effective action in Krein space quantization A Refaei, MV Takook Modern Physics Letters A 26 (01), 31-41, 2011 | 28 | 2011 |