3 papers
quant-ph2026
Surpassing Gaussian optimality in multiparameter estimation with indefinite causal order
Sudipta Das, Rivu Gupta, Aditi Sen De +1
We identify single-mode Gaussian probes, generated by displacement and squeezing operations on the vacuum state, which are optimal for the simultaneous estimation of displacement a…
quant-ph2024
Sequential information theoretic protocols in continuous variable systems
Sudipta Das, Ayan Patra, Rivu Gupta +2
In order to enable the sequential implementation of quantum information theoretic protocols in the continuous variable framework, we propose two schemes for resource reusability, r…
quant-ph2023
Nonclassical resource for continuous variable telecloning with non-Gaussian advantage
Sudipta Das, Rivu Gupta, Himadri Shekhar Dhar +1
The telecloning protocol distributes quantum states from a single sender to multiple receivers via a shared entangled state by exploiting the notions of teleportation and approxima…