923 citations · 1.7k across the 55 of their papers we have counts for
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Detecting phase boundaries of quantum spin-1/2 XXZ ladder via bipartite and multipartite entanglement transitions
Sudipto Singha Roy, Himadri Shekhar Dhar, Debraj Rakshit +2
Phase transition in quantum many-body systems inevitably causes changes in certain physical properties which then serve as potential indicators of critical phenomena. Besides the t…
Effects of cavity-cavity interaction on the entanglement dynamics of a generalized double Jaynes-Cummings model
Mahasweta Pandit, Sreetama Das, Sudipto Singha Roy +2
We consider a generalized double Jaynes-Cummings model consisting of two isolated two-level atoms, each contained in a lossless cavity, with the cavities interacting with each othe…
Monogamy of quantum correlations - a review
Himadri Shekhar Dhar, Amit Kumar Pal, Debraj Rakshit +2
Monogamy is an intrinsic feature of quantum correlations that gives rise to several interesting quantum characteristics which are not amenable to classical explanations. The monoga…
Response to defects in multi- and bipartite entanglement of isotropic quantum spin networks
Sudipto Singha Roy, Himadri Shekhar Dhar, Debraj Rakshit +2
Quantum networks are an integral component in performing efficient computation and communication tasks that are not accessible using classical systems. A key aspect in designing an…
Analytical recursive method to ascertain multisite entanglement in doped quantum spin ladders
Sudipto Singha Roy, Himadri Shekhar Dhar, Debraj Rakshit +2
We formulate an analytical recursive method to generate the wave function of doped short-range resonating valence bond (RVB) states as a tool to efficiently estimate multisite enta…
Lower bounds on violation of monogamy inequality for quantum correlation measures
Asutosh Kumar, Himadri Shekhar Dhar
In multiparty quantum systems, the monogamy inequality proposes an upper bound on the distribution of bipartite quantum correlation between a single party and each of the remaining…