203 citations · 3.3k across the 144 of their papers we have counts for
145 papers
Distinguishing Flat and Warped Extra Dimensions with Unruh-DeWitt Detectors
Ashmita Das, Anjana Krishnan, Soumitra Sengupta
We examine the response of a two level Unruh-DeWitt (UD) detector interacting with the Kaluza-Klein (KK) mass modes of a bulk scalar field in extra dimensional models. Considering…
Equivalence of the wave function of the universe in the Einstein and Jordan frames
Vikramaditya Mondal, Sumanta Chakraborty, Soumitra SenGupta
We investigate the question of equivalence between the Einstein and Jordan frames for generic scalar-tensor and gravity theories in the context of minisuperspace quantum cos…
Constant Curvature 3-branes in 5-D f(R) Bulk
Shafaq Gulzar Elahi, Soumya Samrat Mandal, Soumitra SenGupta
Braneworld models remain the most promising candidates to address several important questions in low-energy particle phenomenology and cosmology. The role of the moduli field(s) an…
Horizon entropy consistent with FLRW equations for general modified theories of gravity and for all EoS of the matter field
Shin'ichi Nojiri, Sergei D. Odintsov, Tanmoy Paul +1
The question that continues to hinge the interrelation between cosmology and thermodynamics is broadly described as -- what is the form of horizon entropy that links the Friedmann…
Nested warped geometry in a non-flat braneworld scenario
Arko Bhaumik, Soumitra SenGupta
We generalize nested multiply warped braneworld models by incorporating non-zero brane curvature caused by an effective cosmological constant Ω induced on the 3-branes. Starting wi…
Novel modulus stabilization mechanism in higher dimensional f(R) Gravity
Shafaq Gulzar Elahi, Soumya Samrat Mandal, Soumitra SenGupta
In this work, we obtain a new warped solution for a 5-dimensional gravity in an anti de-Sitter bulk. The higher curvature term in the gravity action is shown to modify the…