21 citations · 100 across the 23 of their papers we have counts for
23 papers
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…
Dimensional advantage in network cooling with hybrid oscillator-qudit systems
Mrinmoy Samanta, Debkanta Ghosh, Rivu Gupta +1
We examine the cooling of networks of oscillators through repeated unitary evolution followed by conditional measurement on a finite-dimensional auxiliary system, coupled via Jayne…
Hierarchy of entanglement detection criteria for random high-dimensional states
Akhil Kumar Awasthi, Sudipta Mondal, Rivu Gupta +1
Entanglement is a cornerstone in quantum information science, yet detecting it efficiently remains a challenging task. Focusing on non-positive partially transposed (NPT) states, w…
Security of deterministic key distribution with higher-dimensional systems
Abhishek Muhuri, Ayan Patra, Rivu Gupta +2
We analyze the security of two-way quantum key distribution using arbitrary finite-dimensional systems, considering both individual and collective eavesdropping attacks, without th…
Limits on broadcasting non-stabilizerness through unrestricted operations
Rivu Gupta, Tanoy Kanti Konar, Ayan Patra +1
In the resource theory of non-stabilizerness, we prove that stabilizer operations cannot replicate or broadcast the "magic" resource of all quantum states in an arbitrary finite di…
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…
Qubit magic-breaking channels
Ayan Patra, Rivu Gupta, Alessandro Ferraro +1
We develop a notion of quantum channels that can make states useless for universal quantum computation by destroying their magic (non-stabilizerness) - we refer to them as magic-br…
Continuous variable dense coding under realistic non-ideal scenarios
Mrinmoy Samanta, Ayan Patra, Rivu Gupta +1
We analyze the continuous variable (CV) dense coding protocol between a single sender and a single receiver when affected by noise in the shared and encoded states, as well as when…
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…
Dimensional advantage in secure information trading via the noisy dense coding protocol
Ayan Patra, Rivu Gupta, Tamoghna Das +1
The quantum dense coding (DC) protocol, which has no security feature, deals with the transmission of classical information encoded in a quantum state by using shared entanglement…
Information theoretic resource-breaking channels
Abhishek Muhuri, Ayan Patra, Rivu Gupta +1
We propose the notion of process resource-breaking channels that break the resource for a quantum information processing task. We examine the same using quantum dense coding and te…
Perfect transfer of arbitrary continuous variable states across optical waveguide lattices
Tonipe Anuradha, Ayan Patra, Rivu Gupta +1
We demonstrate that perfect state transfer can be achieved in an optical waveguide lattice governed by a Hamiltonian with modulated nearest-neighbor couplings. In particular, we re…
Production of genuine multimode entanglement in circular waveguides with long-range interactions
T Anuradha, Ayan Patra, Rivu Gupta +2
Starting with a product initial state, squeezed (squeezed coherent) state in one of the modes, and vacuum in the rest, we report that a circular waveguide comprising modes coupled…
Superiority in dense coding through non-Markovian stochasticity
Abhishek Muhuri, Rivu Gupta, Srijon Ghosh +1
We investigate the distributed dense coding (DC) protocol, involving multiple senders and a single or two receivers under the influence of non-Markovian noise, acting on the encode…
Multimode advantage in continuous variable quantum battery
Tanoy Kanti Konar, Ayan Patra, Rivu Gupta +2
We provide an architecture for a multimode quantum battery (QB) based on the framework of continuous variable (CV) systems. We examine the performance of the battery by using a gen…
Quantum Dense Coding Network using Multimode Squeezed States of Light
Ayan Patra, Rivu Gupta, Saptarshi Roy +2
We present a framework of a multimode dense coding network with multiple senders and a single receiver using continuous variable systems. The protocol is scalable to arbitrary numb…
Significance of Fidelity Deviation in Continuous Variable Teleportation
Ayan Patra, Rivu Gupta, Saptarshi Roy +1
Performance of quantum teleportation is typically measured by the average fidelity, an overlap between the input and output states. Along with the first moment, we introduce the se…
Statistics of Entanglement Transformation with Hierarchies among Catalysts
Rivu Gupta, Arghya Maity, Shiladitya Mal +1
The distribution of typical bipartite pure states is studied within the framework of state transformation via local operation and classical communication (LOCC). We report the stat…
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…
Quantum illumination with noisy probes: Conditional advantages of non-Gaussianity
Rivu Gupta, Saptarshi Roy, Tamoghna Das +1
Entangled states, like the two-mode squeezed vacuum state, are known to give quantum advantage in the illumination protocol, a method to detect a weakly reflecting target submerged…
Emergence of Monogamy under Static and Dynamic Scenarios
Rivu Gupta, Saptarshi Roy, Shiladitya Mal +1
Characterizing multipartite quantum correlations beyond two parties is of utmost importance for building cutting edge quantum technologies, although the comprehensive picture is st…
Performance of Dense Coding and Teleportation for Random States --Augmentation via Pre-processing
Rivu Gupta, Shashank Gupta, Shiladitya Mal +1
In order to understand the resourcefulness of a natural quantum system in quantum communication tasks, we study the dense coding capacity (DCC) and teleportation fidelity (TF) of H…
Constructive Feedback of Non-Markovianity on Resources in Random Quantum States
Rivu Gupta, Shashank Gupta, Shiladitya Mal +1
We explore the impact of non-Markovian channels on the quantum correlations (QCs) of Haar uniformly generated random two-qubit input states with different ranks -- either one of th…