4 papers
Pure matrix states on block Toeplitz matrices
Tirthankar Bhattacharyya, Ritul Duhan
Let denote the operator system of all block Toeplitz matrices with entries $T_k \in M_m(\mathbb C)…
Gromov-Hausdorff convergence of metric spaces of UCP maps
Tirthankar Bhattacharyya, Ritul Duhan, Chandan Pradhan
It is shown that van Suijlekom's technique of imposing a set of conditions on operator system spectral triples ensures Gromov-Hausdorff convergence of sequences of sets of unital c…
Lipschitz Estimates and an application to trace formulae
Tirthankar Bhattacharyya, Arup Chattopadhyay, Saikat Giri +1
In this note, we provide an elementary proof for the expression of in the form of a double operator integral for every Lipschitz function on the unit circle $\cir$…
Sequences of operator algebras converging to odd spheres in the quantum Gromov-Hausdorff distance
Tirthankar Bhattacharyya, Sushil Singla
Marc Rieffel had introduced the notion of the quantum Gromov-Hausdorff distance on compact quantum metric spaces and found a sequence of matrix algebras that converges to the space…