478 citations · 1.3k across the 51 of their papers we have counts for
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Inferred-variance uncertainty relations in the presence of quantum entanglement
Shrobona Bagchi, Chandan Datta, Pankaj Agrawal
Uncertainty relations play a significant role in drawing a line between classical physics and quantum physics. Since the introduction by Heisenberg, these relations have been consi…
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…
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…
Minimal scenario facet Bell inequalities for multi-qubit states
Arpan Das, Chandan Datta, Pankaj Agrawal
Facet inequalities play an important role in detecting the nonlocality of a quantum state. The number of such inequalities depends on the Bell test scenario. With the increase in t…
Coherence of quantum channels
Chandan Datta, Sk Sazim, Arun K. Pati +1
We investigate the coherence of quantum channels using the Choi-Jamiołkowski isomorphism. The relation between the coherence and the purity of the channel respects a duality relati…
Distinguishing different classes of entanglement of three-qubit pure states
Chandan Datta, Satyabrata Adhikari, Arpan Das +1
Employing the Pauli matrices, we have constructed a set of operators, which can be used to distinguish six inequivalent classes of entanglement under SLOCC (stochastic local operat…