Theoretical Physics

Download PDF (305.1 KB) PP. 141 - 144 Pub. Date: September 19, 2017

DOI: 10.22606/tp.2017.23005

• Subhamoy Singha Roy^*
  Department of Physics, JIS College of Engineering (Autonomous), West Bengal University of Technology, Kalyani, Nadia -741235, India

It is observed that when the conformational properties of DNA molecule are mapped onto an antiferromagnetic spin system we can realize the specific properties of the rod-like-chain (RLC) model where the analytically continued partition function corresponds to the symmetric top Hamiltonian. The relevant path integral represents a charge particle in the field of a non-quantized monopole which suggests that angular momentum is not quantized. However in a spin chain the nonquantized monopole charge appears in the renormalization group flow and corresponds to the Barry phase required by a spin ½ state in an entangled spin system. Thus avoids the RLC model crisis.

Spin system, symmetric top, monopole

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