Orthogonal unitary bases and a subfactor conjecture

J Crann, D Kribs, R Pereira - Proceedings of the American Mathematical …, 2023 - ams.org
We show that any finite dimensional von Neumann algebra admits an orthonormal unitary
basis with respect to its standard trace. We also show that a finite dimensional von Neumann …

Quantum teleportation in the commuting operator framework

A Conlon, J Crann, DW Kribs, RH Levene - Annales Henri Poincaré, 2023 - Springer
We introduce a notion of teleportation scheme between subalgebras of semi-finite von
Neumann algebras in the commuting operator model of locality. Using techniques from …

Lattice of intermediate subalgebras

KC Bakshi, VP Gupta - Journal of the London Mathematical …, 2021 - Wiley Online Library
Analogous to subfactor theory, employing Watatani's notions of index and C∗‐basic
construction of certain inclusions of C∗‐algebras,(a) we develop a Fourier theory (consisting …

A few remarks on Pimsner–Popa bases and regular subfactors of depth 2

KC Bakshi, VP Gupta - Glasgow Mathematical Journal, 2022 - cambridge.org
We prove that a finite index regular inclusion of-factors with commutative first relative
commutant is always a crossed product subfactor with respect to a minimal action of a …

Regular inclusions of simple unital -algebras

KC Bakshi, VP Gupta - arXiv preprint arXiv:2404.06959, 2024 - arxiv.org
We prove that an inclusion $\mathcal {B}\subset\mathcal {A} $ of simple unital $ C^* $-
algebras with a finite-index conditional expectation is regular if and only if there exists a …

On Pimsner-Popa orthonormal basis and Popa's relative dimension of projections

KC Bakshi, S Guin - arXiv preprint arXiv:2311.13820, 2023 - arxiv.org
We show that any depth 2 subfactor with a simple first relative commutant has a unitary
orthonormal basis. As a pleasant consequence, we produce new elements in the set of …