activity
20142025
most citedTwo-qubit mixed states and teleportation fidelity: Purity, concurrence, and beyond

7 citations · 21 across the 8 of their papers we have counts for

collaborators

9 papers

quant-ph2025

Genuine multipartite entanglement detection with mutually unbiased bases (MUBs)

Sumit Nandi

In the present paper, a novel framework to detect genuine multipartite entanglement (GME) has been presented by computing correlations in mutually unbiased bases (MUBs). It has bee…

quant-ph2025

Breaking Quantum Key Distributions under Quantum Switch-Based Attack

Sumit Nandi, Biswaranjan Panda, Pankaj Agrawal +1

Quantum key distribution (QKD) enables secure key sharing between distant parties, with several protocols proven resilient against conventional eavesdropping strategies. Here, we i…

quant-ph2024★ 4 cited

Genuine entanglement detection via projection map in multipartite systems

Bivas Mallick, Sumit Nandi

We present a formalism to detect genuine multipartite entanglement by considering projection map which is a positive but not completely positive map. Projection map has been motiva…

quant-ph2022★ 1 cited

Necessary criterion for extracting thermodynamical work from qudit-entangled state

Sumit Nandi

A novel criterion of extracting thermodynamical work from a bipartite pure qudit-entangled state by means of local operation and classical communication (LOCC) has been presented.…

quant-ph2022

Monogamy of entanglement of maximal dimension

Sumit Nandi

In the present paper, a trade off of sharing of entanglement between subsystems of a higher dimensional quantum state is derived. It is presented in terms of an inequality which is…

quant-ph2022★ 1 cited

Wigner's approach enabled detection of multipartite nonlocality using all different bipartitions

Sumit Nandi, Debashis Saha, Dipankar Home +1

Distinct from Bell's approach, Wigner had derived a form of local realist (LR) inequality which is quantum mechanically violated for a bipartite maximally entangled state. Subseque…

quant-ph2019★ 5 cited

Resource state structure for controlled quantum key distribution

Arpan Das, Sumit Nandi, Sk Sazim +1

Quantum entanglement plays a pivotal role in many communication protocols, like secret sharing and quantum cryptography. We consider a scenario where more than two parties are invo…

quant-ph2018★ 7 cited

Two-qubit mixed states and teleportation fidelity: Purity, concurrence, and beyond

Sumit Nandi, Chandan Datta, Arpan Das +1

To explore the properties of a two-qubit mixed state, we consider quantum teleportation. The fidelity of a teleported state depends on the resource state purity and entanglement, a…

quant-ph2014★ 3 cited

More Communication with Less Entanglement

P. Agrawal, Satyabrata Adhikari, Sumit Nandi

We exhibit the intriguing phenomena of "Less is More" using a set of multipartite entangled states. We consider the quantum communication protocols for the {\em exact} teleportatio…