17 citations · 19 across the 3 of their papers we have counts for
12 papers
Quantum illumination with a light absorbing target
Rivu Gupta, Saptarshi Roy, Tamoghna Das +1
In a quantum illumination (QI) protocol, the task is to detect the presence of the target which is typically modelled by a partially reflecting beam splitter. We analyze the perfor…
Localizing genuine multimode entanglement: Asymmetric gains via non-Gaussianity
Ratul Banerjee, Saptarshi Roy, Tamoghna Das +1
Measurement-based quantum correlation mimics several characteristics of multipartite quantum correlations and at the same time, it reduces the parent system to a smaller subsystem.…
Rating the performance of noisy teleportation using fluctuations in fidelity
Saptarshi Roy, Arkaprabha Ghosal
Quantum teleportation is one of the most pioneering features of the quantum world. Typically, the quality of a teleportation protocol is solely judged by its average fidelity. In t…
Computable genuine multimode entanglement measure: Gaussian vs. non-Gaussian
Saptarshi Roy, Tamoghna Das, Aditi Sen De
Genuine multimode entanglement in continuous variable systems can be quantified by exploring the geometry of the state-space, namely via the generalized geometric measure (GGM) whi…
Density Power Downweighting and Robust Inference: Some New Strategies
Saptarshi Roy, Kaustav Chakraborty, Somnath Bhadra +1
Preserving the robustness of the procedure has, at the present time, become almost a default requirement for statistical data analysis. Since efficiency at the model and robustness…
Optimal two-qubit states for quantum teleportation vis-à-vis state properties
Arkaprabha Ghosal, Debarshi Das, Saptarshi Roy +1
Quantum teleportation with a two-qubit state can be suitably characterized in terms of maximal fidelity and fidelity deviation, where the former is the maximal value of the average…