8 citations · 9 across the 3 of their papers we have counts for
6 papers · 1 filter
Assisted Quantum Secret Sharing
Sudhir Kumar Singh, R. Srikanth
A restriction on quantum secret sharing (QSS) that comes from the no-cloning theorem is that any pair of authorized sets in an access structure should overlap. From the viewpoint o…
A combinatorial approach for studying LOCC transformations of multipartite states
Sudhir Kumar Singh, Sudebkumar Prasant Pal, Somesh Kumar +1
We develop graph theoretic methods for analysing maximally entangled pure states distributed between a number of different parties. We introduce a technique called {\it bicolored m…
Combinatorial Approaches in Quantum Information Theory
Sudhir Kumar Singh
We investigate the exploitation of various combinatorial properties of graphs and set systems to study several issues in quantum information theory. We characterize the combinatori…
Multi-partite Quantum Entanglement versus Randomization: Fair and Unbiased Leader Election in Networks
Sudebkumar Prasant Pal, Sudhir Kumar Singh, Somesh Kumar
In this paper we show that sufficient multi-partite quantum entanglement helps in fair and unbiased election of a leader in a distributed network of processors with only linear cla…
Unconditionally Secure Multipartite Quantum Key Distribution
Sudhir Kumar Singh, R. Srikanth
We consider the problem of secure key distribution among trustful agents: the goal is to distribute an identical random bit-string among the agents over a noisy channel suc…
Characterizing the combinatorics of distributed EPR pairs for multi-partite entanglement
Sudhir Kumar Singh, Somesh Kumar, Sudebkumar Prasant Pal
We develop protocols for preparing a GHZ state and, in general,a pure multi-partite maximally entangled state in a distributed network with apriori quantum entanglement between age…