Bio
Dr. Subhamoy Singha Roy is a physicist affiliated with JIS College of Engineering, Kalyani, India. He holds a Bachelor of Science in Physics (Honours), a Master of Science in Physics with a specialization in Solid State Physics, and completed postdoctoral research at the Indian Statistical Institute (ISI), Kolkata. His research spans solid state physics, the bending dynamics of DNA, and low-energy effective theories of strongly correlated electron systems. With 17 published works, 6 citations, and an h-index of 2, Dr. Roy continues to contribute to theoretical and applied physics. He is also an active fellow of a global research organization, reflecting his commitment to advancing scientific knowledge.
Educational Journey
JIS College of Engineering, Kalyani
UG BACHELOR OF SCIENCE (PHYSICS HONOURS), PG MASTER OF SCIENCE (PHYSICS) (SPL. SOLIDSTATE), Post doctorial (ISI Kolkata). • Solid State Physics
Experience
JIS College of Engineering, Kalyani
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Fellow
Research
Bending Dynamics of DNA
It is here pointed out that the local opening of base pairs induces the formation of kinks which facilitates the bending of double helix. The conformational properties of DNA can be mapped onto the Heisenberg spin system and denaturation occurs through quantum phase transition (QPT) induced by a quench when the temperature effect is incorporated through the quench time . The nonequilibrium effect in QPT introduced through the quench generate defects like kinks end antikinks, the density of which depends on the quench time and hence on temperature. It is here argued that when we transcribe this result in the rod –like-chain (RLC) model of DNA, these defects lead to bends. This suggests that we have dynamical generation of kinks leading to the formation of bends during local denaturation.
