Device-independent quantum key distribution using random quantum states

S Bera, S Gupta, AS Majumdar - Quantum Information Processing, 2023 - Springer
We Haar uniformly generate random states of various ranks and study their performance in
an entanglement-based quantum key distribution (QKD) task. In particular, we analyze the …

Measurement-based multipartite entanglement inflation

P Halder, S Mal, A Sen - Physical Review A, 2021 - APS
Generating entanglement between more parties is one of the central tasks and challenges in
the backdrop of building quantum technologies. Here we propose a measurement-based …

Performance of dense coding and teleportation for random states: Augmentation via preprocessing

R Gupta, S Gupta, S Mal, A Sen - Physical Review A, 2021 - APS
In order to understand the resourcefulness of a natural quantum system in quantum
communication tasks, we study the dense coding capacity (DCC) and teleportation fidelity of …

Statistics of entanglement transformation with hierarchies among catalysts

R Gupta, A Maity, S Mal, A Sen - Physical Review A, 2022 - APS
The distribution of typical bipartite pure states is studied within the framework of state
transformation via local operations and classical communication (LOCC). We report the …

Constructive feedback of non-Markovianity on resources in random quantum states

R Gupta, S Gupta, S Mal, A Sen - Physical Review A, 2022 - APS
We explore the impact of non-Markovian channels on the quantum correlations of Haar
uniformly generated random two-qubit input states with different ranks: Either one of the …

Computable genuine multimode entanglement measure: Gaussian versus non-Gaussian

S Roy, T Das, A Sen - Physical Review A, 2020 - APS
Genuine multimode entanglement in continuous variable systems can be quantified by
exploring the geometry of the state space, namely, via the generalized geometric measure …

Uniform decoherence effect on localizable entanglement in random multiqubit pure states

R Banerjee, AK Pal, A Sen - Physical Review A, 2020 - APS
We investigate the patterns in distributions of localizable entanglement over a pair of qubits
for random multiqubit pure states. We observe that the mean of localizable entanglement …

Multipartite Monogamy of Entanglement for Three Qubit States

P Char, D Chakraborty, PK Dey, A Sen, A Bhar… - arXiv preprint arXiv …, 2024 - arxiv.org
The distribution of entanglement in a multiparty system can be described through the
principles of monogamy or polygamy. Monogamy is a fundamental characteristic of …

Restrictions on shareability of classical correlations for random multipartite quantum states

S Roy, S Mal, A Sen - Physical Review A, 2021 - APS
Unlike quantum correlations, the shareability of classical correlations (CCs) between two
parties of a multipartite state is assumed to be free since there exist states for which CCs for …

Typical behaviour of genuine multimode entanglement of pure Gaussian states

S Roy - arXiv preprint arXiv:2404.17265, 2024 - arxiv.org
Trends of genuine entanglement in Haar uniformly generated multimode pure Gaussian
states with fixed average energy per mode are explored. A distance-based metric known as …