Author

Supriyo Dutta

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Preprint Sep 2026

Construction of Partial Join Graphs with Perfect State Transfer in Shunt Decomposition-Based Quantum Walks

In this paper, we define directed partial join graphs with signed couplings and construct discrete-time quantum-walk transition operators for these graphs using the shunt-decomposition framework. The resulting transition operators apply to several important graph families, including complete graphs with loops, circulan...

Banita Katuwal, Y. Naidu, S. SrinathM et al. · 0 citations

Preprint Sep 2026

Structural Characterizations and Algebraic Realizations of a Family of Regular Integral Graphs

All the eigenvalues of an integral graphs are integers. Integral graphs are extremely rare. They form an asymptotically vanishing fraction $2^{-\Omega(n)}$ among all graphs on $n$ vertices. It makes the construction of a new family of integral graphs a challenging task. Also, most of the known infinite family of integr...

T. Manna, Supriyo Dutta, Baby Bhattacharya · 0 citations