Tapan Kumar Saha

Dr. Tapan Kumar Saha

Jahangirnagar University, Dhaka, Bangladesh
orcid

Research Focus & Metrics

Academic Career Length

27Years (2000-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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26 September 2011 in CLEAN – Soil, Air, Water
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Journal Article
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Tapan Kumar SahaTapan Kumar Saha
Tapan Kumar Saha
NBNikhil C. Bhoumik
Nikhil C. Bhoumik
SKSubarna Karmaker
Subarna Karmaker
MAMahmooda G. Ahmed
Mahmooda G. Ahmed
HIHideki Ichikawa
Hideki Ichikawa
YFYoshinobu Fukumori
Yoshinobu Fukumori

16 April 2024 in Physical Review D
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SHSudip Halder
Sudip Halder
Jaume HaroJaume Haro
Jaume Haro
Tapan Kumar SahaTapan Kumar Saha
Tapan Kumar Saha
Supriya PanSupriya Pan
Supriya Pan
The theory of nongravitational interaction between a pressureless dark matter (DM) and dark energy (DE) is a phenomenologically rich cosmological domain which has received magnificent attention in the community. In the present article we have considered some interacting scenarios with some novel features: the interaction functions do not depend on the external parameters of the Universe, rather, they depend on the intrinsic nature of the dark components; the assumption of unidirectional flow of energy between DM and DE has been extended by allowing the possibility of bidirectional energy flow characterized by some sign shifting interaction functions; and the DE equation of state has been considered to be either constant or dynamical in nature. These altogether add new ingredients in this context, and we performed the phase space analysis of each interacting scenario in order to understand their global behavior. According to the existing records in the literature, this combined picture has not been reported elsewhere. From the analyses, we observed that the DE equation of state as well as the coupling parameter(s) of the interaction models can significantly affect the nature of the critical points. It has been found that within these proposed sign shifting interacting scenarios it is possible to obtain stable late time attractors, which may act as global attractors corresponding to an accelerating expansion of the Universe. The overall outcomes of this study clearly highlight that the sign shifting interaction functions are quite appealing in the context of cosmological dynamics, and they deserve further attention.

28 May 2020 in ACS Omega
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Tapan Kumar SahaTapan Kumar Saha
Tapan Kumar Saha
Raton Kumar BishwasRaton Kumar Bishwas
Raton Kumar Bishwas
SKSubarna Karmaker
Subarna Karmaker
ZIZinia Islam
Zinia Islam

1 June 2005 in Journal of Colloid and Interface Science
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Tapan Kumar SahaTapan Kumar Saha
Tapan Kumar Saha
SKSubarna Karmaker
Subarna Karmaker
HIHideki Ichikawa
Hideki Ichikawa
YFYoshinobu Fukumori
Yoshinobu Fukumori

1 December 2006 in Carbohydrate Research
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Journal Article
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Tapan Kumar SahaTapan Kumar Saha
Tapan Kumar Saha
HIHideki Ichikawa
Hideki Ichikawa
YFYoshinobu Fukumori
Yoshinobu Fukumori

7 January 2013 in ChemCatChem
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Tapan Kumar SahaTapan Kumar Saha
Tapan Kumar Saha
HFHolm Frauendorf
Holm Frauendorf
MJMichael John
Michael John
SDSebastian Dechert
Sebastian Dechert
Franc MeyerFranc Meyer
Franc Meyer