2 citations · 4 across the 9 of their papers we have counts for
7 papers · 1 filter
Quantum secure direct communication with SU(2) invariant separable polarisation- OAM states
Sooryansh Asthana, Rajni Bala, V. Ravishankar
We propose a quantum secure direct communication protocol using SU (2)- invariant separable states, identified as separable equivalents of two-qubit entangled Werner st…
Relation between nonclassical features through logical qudits
Sooryansh Asthana, V. Ravishankar
Scalable modern-time fault-tolerant quantum computation and quantum communication in a network employ a large number of physical qubits. For example, IBM is reported to have made a…
Collaborative error-immune information transfer with OAM modes of light in networks through atmospheric turbulence
Rajni Bala, Sooryansh Asthana, V. Ravishankar
We present a protocol for collaborative error-immune information through atmospheric turbulence. The protocol allows transferring of information in a network of three participants.
Task-dependent semi-quantum secure communication in layered networks with OAM states of light
Rajni Bala, Sooryansh Asthana, V. Ravishankar
Secure communication in layered networks having differently preferred participants has attracted a lot of research attention. Protocols for key distribution in a layered network ha…
Boosted quantum and semi-quantum communication protocols
Rajni Bala, Sooryansh Asthana, V. Ravishankar
Secure quantum communication protocols based on a prepare-and-measure scheme employ mutually unbiased bases. In these protocols, many runs, in which different participants measure…
Nonclassical features in higher-dimensional systems through logical qudits
Sooryansh Asthana, V. Ravishankar
In a recent work [S. Asthana. New Journal of Physics 24.5 (2022): 053026], we have shown the interrelation of different nonclassical correlations in multiqubit systems with quantum…
Integrated semi-quantum layered communication
Rajni Bala, Sooryansh Asthana, V. Ravishankar
In recent times, secure quantum communication in layered networks has emerged as an important area of study. In this paper, we harness the potential offered by multidimensional sta…