98 citations
- Indian Institute of Technology BhubaneswarIN5 papers
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13 papers · 1 filter
Coherence thermometry using multipartite quantum systems
Pranav Perumalsamy, Abhijit Mandal, Sovik Roy +1
Accurate temperature measurement at the quantum scale is becoming increasingly important for emerging quantum technologies, motivating the development of quantum thermometry based…
Entanglement, Coherence, and Recursive Linking in Dicke states : A Topological Perspective
Sougata Bhattacharyya, Sovik Roy
This work investigates the topological structure of multipartite entanglement in symmetric Dicke states . By viewing qubits as topological loops, we establish a…
Symmetric and asymmetric tripartite states under the lens of entanglement splitting and topological linking
Sougata Bhattacharyya, Sovik Roy
This work establishes a direct operational connection between the entanglement structures of specific three-qubit states (i.e. multipartite entanglement) and their corresponding to…
Quantum Teleportation of a Single Qutrit using Two-Qutrit Entangled States
Surajit Sen, Tushar Kanti Dey, Anushree Bhattacharjee +1
We demonstrate quantum teleportation of a qutrit system using a complete set of two-qutrit entangled states obtained from the representation theory of the SU(3) group. All measurem…
Unitary and non-unitary operators leverage perfect and imperfect single qutrit teleportation
Sovik Roy, Anushree Pandey, Tushar Kanti Dey +1
Teleportation, a novel scheme, initially posited by Bennett \textit{et.al}, has been studied here in the context of sending a single qutrit from Alice to Bob using two qutrit entan…
Environment engineering to protect quantum coherence in tripartite systems under dephasing noise
Sovik Roy, Aahaman Kalaiselvan, Chandrashekar Radhakrishnan +1
The practical success of quantum technology hinges on sustaining quantum coherence, which is vulnerable to environmental interactions causing decoherence. We investigate coherence…