## Members

Name | Keshav Dasgupta |

Affiliation | |

Phone (1) | 5143986498 |

Areas of research (1) | String theory and Mathematical Physics |

Area of research (2) | High Energy Physics |

Area of research (3) | Mathematics |

Area of research (4) | String Cosmology |

Area of research (5) | Knot Theory |

Postdoctoral Fellows with dates (current and since last year) (1) | Suddhasattwa Brahma (2018-2021) |

Postdoctoral Fellows with dates (current and since last year) (2) | Heliudson Bernardo (2019-) |

Students with dates (current and since last year) and affiliation (1) | Mir-Mehedi Faruk (2019-) |

Students with dates (current and since last year) and affiliation (2) | Bohdan Kulinich (2021-) |

Selected Recent Publications (past 2 years only) (1) | de Sitter Space as a Glauber-Sudarshan State: II (Fortsch.Phys. 69 (2021) 11-12, 2100131) |

Selected Recent Publications (past 2 years only) (2) | The four-dimensional null energy condition as a swampland conjecture (Phys. Rev. Lett 127 (2021) 18, 181301) |

Selected Recent Publications (past 2 years only) (3) | Purely non-perturbative AdS vacua and the swampland (Phys.Rev.D 104 (2021) 8, 086016) |

Selected Recent Publications (past 2 years only) (4) | Crisis on Infinite Earths: Short-lived de Sitter Vacua in the String Theory Landscape (JHEP 04 (2021) 037) |

Selected Recent Publications (past 2 years only) (5) | de Sitter Space as a Glauber-Sudarshan State I (JHEP 02 (2021) 104) |

Selected Recent Publications (past 2 years only) (6) | Reheating after S-brane ekpyrosis (Phys.Rev.D 102 (2020) 6, 063514) |

Selected Recent Publications (past 2 years only) (7) | Four-dimensional de Sitter space is a Glauber-Sudarshan state in string theory (JHEP 07 (2021) 114) |

Selected Recent Publications (past 2 years only) (8) | How a four-dimensional de Sitter solution remains outside the swampland (JHEP 07 (2021) 109) |

Selected Recent Publications (past 2 years only) (9) | de Sitter vacua in the string landscape (Nucl.Phys.B 969 (2021) 115463) |

Selected Recent Publications (past 2 years only) (10) | Quantum Corrections and the de Sitter Swampland Conjecture ( JHEP 01 (2019) 145) |

Selected Recent Publications (past 2 years only) (11) | On bulk viscosity at weak and strong ’t Hooft couplings (Mod.Phys.Lett.A 35 (2020) 27, 2030012) |

Selected Recent Publications (past 2 years only) (12) | Bulk Viscosity at Extreme Limits: From Kinetic Theory to Strings ( JHEP 07 (2019) 145) |

Selected Recent Publications (past 2 years only) (13) | Non-Kähler deformed conifold, ultraviolet completion and supersymmetric constraints in the baryonic branch (Int.J.Mod.Phys.A 35 (2020) 25, 2050139) |

Selected Recent Publications (past 2 years only) (14) | de Sitter Vacua in the String landscape: La Petite Version (QTS 2019) |

Recent Invited Talks and Lectures (past year only) (1) | Constructing de Sitter space in string theory (June 8, 2021; University of Lethbridge, CAP conference)) |

Recent Invited Talks and Lectures (past year only) (2) | de Sitter space in the string landscape (Nov 4, 2020, HEP theory Journal Club, McGill) |

Recent Invited Talks and Lectures (past year only) (3) | Does string theory allow a four-dimensional de Sitter vacuum? (Aug 19, 2020, Indian Institute of Science, Bangalore, India) |

Recent Invited Talks and Lectures (past year only) (4) | Constructing de Sitter space in string theory (Nov 29, 2020 Beijing Inst. for Mathematical Sciences and Applications, China) |

Recent Invited Talks and Lectures (past year only) (5) | Constructing de Sitter space in string theory (Oct 23, 2020, Indian Inst of Science, Bangalore, India) |

Recent Visiting Positions, Sabbatical Leaves (past 2 years only) | One year Sabbatical visit to Stanford University, Stanford California (USA); Sep 1 , 2014 till Aug 31, 2015 |