Detecting genuine multipartite entanglement in three-qubit systems with eternal non-Markovianity

Journal of Physics A: Mathematical and Theoretical Full paper May 2022 10 pages
Ankit Shambhunath Vaishy, Subhadip Mitra, Samyadeb Bhattacharya

Dynamics of two qubit central spin under fermionic environment

Technical Report Short paper May 2022 8 pages
Devvrat Tiwari, Shounak Datta, Samyadeb Bhattacharya, Subhashish Banerjee

Fundamental limitations on the device-independent quantum conference key agreement

Physical Review A Full paper Feb 2022 15 pages
Karol Horodecki, Marek Winczewski, Siddhartha Das

A-unital Operations and Quantum Conditional Entropy

Quantum Journal Full paper Feb 2022 19 pages
MAHATHI VEMPATI, Shah Saumya Mihirkumar, Nirman Ganguly, Indranil Chakrabarty

Detecting genuine multipartite entanglement by eternal non-Markovianity

Technical Report Full paper Oct 2021 6 pages
Ankit Shambhunath Vaishy, Subhadip Mitra, Samyadeb Bhattacharya

Revisiting the Quantum Open System Dynamics of Central Spin Model

Quanta Full paper Oct 2021 10 pages
Samyadeb Bhattacharya, Subhashish Banerjee

Improved Upper Bounds for the Hitting Times of Quantum Walks

Technical Report Full paper Sep 2021 20 pages
Yosi Atia, Shantanav Chakraborty

Improved upper bounds for the hitting times of quantum walks

Physical Review A Full paper Sep 2021 13 pages
Yosi Atia, Shantanav Chakraborty

Nearly Markovian maps and entanglement-based bound on corresponding non-Markovianity

Journal of Physics A: Mathematical and Theoretical Full paper Sep 2021
Sreetama Das, Sudipto Singha Roy, Samyadeb Bhattacharya, Ujjwal Sen

Convex geometry of Markovian Lindblad dynamics and witnessing non-Markovianity

Quantum Information Processing Full paper Aug 2021
Bihalan Bhattacharya, Samyadeb Bhattacharya