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12 papers · 1 filter
Entanglement signatures for the dimerization transition in the Majumdar-Ghosh model
M. S. Ramkarthik, V. Ravi Chandra, Arul Lakshminarayan
The transition from a gapless liquid to a gapped dimerized ground state that occurs in the frustrated antiferromagnetic Majumdar-Ghosh (or Heisenberg) model is revisited…
Renormalization Group Limit Cycle for Three-Stranded DNA
Tanmoy Pal, Poulomi Sadhukhan, Somendra M. Bhattacharjee
We show that there exists an Efimov-like three strand DNA bound state at the duplex melting point and it is described by a renormalization group limit cycle. A nonperturbative RG i…
Maximum mass of a hybrid star having a mixed phase region in the light of pulsar PSR J1614-2230
Ritam Mallick
Recent observation of pulsar PSR J1614-2230 with mass about 2 solar masses poses a severe constraint on the equations of state (EOS) of matter describing stars under extreme condit…
An operator summability of sequences in Banach spaces
Anil Kumar Karn, Deba Prasad Sinha
Let . A sequence $\lef x_n \rig$ in a Banach space is defined to be -operator summable if for each $\lef f_n \rig \in l^{w^*}_p(X^*)$, we have $\lef \lef f…
Efimov effect of triple-stranded DNA: Real-space renormalization group and Zeros of the partition function
Jaya Maji, Somendra M. Bhattacharjee
We study the melting of three-stranded DNA by using the real-space renormalization group and exact recursion relations. The prediction of an unusual Efimov-analog three-chain bound…
Signature of special behaviours of interaction in the quantum entanglement entropy
Poulomi Sadhukhan, Somendra M. Bhattacharjee
We study the bipartite von Neumann entropy of two particles interacting via a long-range scale-free potential in three dimensions, close to the unbinding transiti…