1 citations · 2 across the 5 of their papers we have counts for
5 papers
Modified gravity as entropic cosmology
Shin'ichi Nojiri, Sergei D. Odintsov, Tanmoy Paul +1
The present work reveals a direct correspondence between modified theories of gravity (cosmology) and entropic cosmology based on the thermodynamics of apparent horizon. It turns o…
Does the stability of f(R) theories imply the stability of the dual scalar-tensor theory ?
Subham Chakraborty, Soumitra SenGupta
Higher curvature f(R) gravity theories are often plagued with Ostragadsky instability. In this work we show that such instability manifests itself in the corresponding dual scalar…
Natural validation of the second law of thermodynamics in cosmology
Sergei D. Odintsov, Tanmoy Paul, Soumitra SenGupta
The present work shows that the second law of thermodynamics gets naturally satisfied during the entire cosmic evolution of the universe starting from inflation to the late dark en…
Second law of horizon thermodynamics during cosmic evolution
Sergei D. Odintsov, Tanmoy Paul, Soumitra SenGupta
We examine the second law of thermodynamics in the context of horizon cosmology, in particular, whether the change of total entropy (i.e. the sum of the entropy for the apparent ho…
f(R) gravity with spacetime torsion
Hitender Kumar, Tanmoy Paul, Soumitra SenGupta
The duality between a higher curvature gravity model and a scalar-tensor theory helps to bring out the role of the additional degree of freedom originating from the higher d…