Pankaj Dey

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20212026

most citedHigher Rank Numerical Ranges of Normal Operators and unitary dilations

2 citations · 3 across the 5 of their papers we have counts for

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math.OA2026

A complete characterization of eventually entanglement breaking unital quantum channels

B. V. Rajarama Bhat, Pankaj Dey, Biswarup Saha

We obtain a complete characterization of eventually entanglement breaking (EEB) unital channels in terms of some simple commutation properties of their eigenvectors. Specifically,…

math.OA2024

On the rank of extremal marginal states

Repana Devendra, Pankaj Dey, Santanu Dey

Let $ρ_{1}$ and $ρ_{2}$ be two states on $C^{d_{1}}$ and $C^{d_{2}}$ respectively. The marginal state space, denoted by $C (ρ_{1}, ρ_{2})$ , is the set of all states $…