124 citations · 1.9k across the 127 of their papers we have counts for
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Decoherence can help quantum cryptographic security
Vishal Sharma, U. Shrikant, R. Srikanth +1
In quantum key distribution, one conservatively assumes that the eavesdropper Eve is restricted only by physical laws, whereas the legitimate parties, namely the sender Alice and r…
Non-Markovian evolution: a quantum walk perspective
Pradeep Kumar, Subhashish Banerjee, R. Srikanth +2
Quantum non-Markovianity of a quantum noisy channel manifests typically as information backflow, characterized by the departure of the intermediate map from complete positivity, th…
Quantum bit commitment and the reality of the quantum state
R. Srikanth
Quantum bit commitment (QBC) is insecure in the standard non-relativistic quantum cryptographic framework, essentially because Alice can exploit quantum steering to defer making he…
Operational characterization of quantumness of unsteerable bipartite states
Debarshi Das, Bihalan Bhattacharya, Chandan Datta +4
Recently, the quantumness of local correlations arising from separable states in the context of a Bell scenario has been studied and linked with superlocality [Phys. Rev. A {\bf 95…
Non-Markovian Dynamics of Discrete-Time Quantum Walks
Subhashish Banerjee, N. Pradeep Kumar, R. Srikanth +2
In the case of the discrete time coined quantum walk the reduced dynamics of the coin shows non-Markovian recurrence features due to information back-flow from the position degree…
Operational nonclassicality of local multipartite correlations in the limited-dimensional simulation scenario
C. Jebaratnam, Debarshi Das, Suchetana Goswami +2
For a bipartite local quantum correlation, superlocality refers to the requirement for a larger dimension of the random variable in the classical simulation protocol than that of t…