2 citations · 2 across the 2 of their papers we have counts for
4 papers
State-Independent Quantum Key Distribution with Two-Way Classical Communication
Radha Pyari Sandhir
A quantum key distribution protocol is proposed that is a variation of BB84 that provides raw key generation from correlations that violate a Bell-type inequality for single qubit…
Is non-locality stronger in higher dimensions?
Soumik Adhikary, V. Ravishankar, Radha Pyari Sandhir
A critique of a prescription of non-locality in [Phys. Rev. Lett. 85, 4418 (2000)], [Phys. Rev. Lett. 88, 040404 (2002)], [Phys. Rev. Lett. 92, 130404 (2004)] that appears to be st…
Weak Classicality in Coupled N-Level Quantum Systems
Radha Pyari Sandhir, V. Ravishankar
The notion of `weak classical limit' for coupled N-level quantum systems as N -> infinity is introduced to understand the precise sense in which one attains classicality. There exi…
Non-locality in high spin systems with tensor correlations
V. Ravishankar, R. P. Sandhir
We address the problem of detecting non-locality in coupled N level systems in the language of spin. Through a number of examples, we show that non-locality can be detected via a v…