34 citations · 106 across the 5 of their papers we have counts for
5 papers
Tachyonic field interacting with Scalar (Phantom) Field
Surajit Chattopadhyay, Ujjal Debnath
In this letter, we have considered the universe is filled with the mixture of tachyonic field and scalar or phantom field. If the tachyonic field interacts with scalar or phantom f…
Holographic Dark Energy Scenario and Variable Modified Chaplygin Gas
Surajit Chattopadhyay, Ujjal Debnath
In this letter, we have considered that the universe is filled with normal matter and variable modified Chaplygin gas. Also we have considered the interaction between normal matter…
Density Evolution in the New Modified Chaplygin Gas Model
Surajit Chattopadhyay, Ujjal Debnath
In this paper, we have considered new modified Chaplygin gas (NMCG) model which interpolates between radiation at early stage and CDM at late stage. This model is regarded as a…
Acceleration of the Universe in Presence of Tachyonic field
Surajit Chattopadhyay, Ujjal Debnath, Goutami Chattopadhyay
In this letter, we have assumed that the Universe is filled in tachyonic field with potential, which gives the acceleration of the Universe. For certain choice of potential, we hav…
A probe into the chaotic nature of total ozone time series by Correlation Dimension method
Goutami Bandyopadhyay, Surajit Chattopadhyay
Present paper deals with mean monthly total ozone concentration over Arosa, Switzerland. The basic rationale is to investigate the existence of chaos within the relevant time serie…