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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…
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…
Tradeoff between noise and banding in a quantum adder with qudits
Gaurang Agrawal, Tanoy Kanti Konar, Leela Ganesh Chandra Lakkaraju +1
Quantum addition based on the quantum Fourier transform can be an integral part of a quantum circuit and proved to be more efficient than the existing classical ripple carry adder.…
Quantum-enhanced sensing with variable-range interactions
Monika Mothsara, Leela Ganesh Chandra Lakkaraju, Srijon Ghosh +1
The typical bound on parameter estimation, known as the standard quantum limit (SQL), can be surpassed by exploiting quantum resources such as entanglement. To estimate the magneti…
Efficient nonlinear witnessing of non-absolutely separable states with lossy detectors
Ayan Patra, Shiladitya Mal, Aditi Sen De
Entangled states are undoubtedly an integral part of various quantum information processing tasks. On the other hand, absolutely separable states which cannot be made entangled und…
Noisy quantum input loophole in measurement-device-independent entanglement witnesses
Kornikar Sen, Chirag Srivastava, Shiladitya Mal +2
Entanglement witnesses form an effective method to locally detect entanglement in the laboratory without having the prior knowledge of the full density matrix. However, separable s…