2 papers
quant-ph2019
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
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…