5 papers
Entanglement concentration via measurement:- role of imaginarity
Indranil Biswas, Subrata Bera, Ujjwal Sen +2
The role of complex numbers in quantum theory extends beyond mathematical convenience, having recently been formalized as a resource under the framework of the resource theory of i…
Strong nonlocality with more imaginarity and less entanglement
Subrata Bera, Indranil Biswas, Atanu Bhunia +2
Complex numbers are central to the formulation of quantum mechanics, yet their role as a genuine resource is only beginning to be understood. In this work, we demonstrate that quan…
Genuinely entangled subspaces beyond strongly nonlocal unextendible biseparable bases
Subrata Bera, Atanu Bhunia, Indranil Biswas +2
Quantum information theory reveals a clear distinction between local and nonlocal correlations through the entanglement across spatially separated subsystems. The orthogonal comple…
Dilution of Entanglement: Unveiling Quantum State Discrimination Advantages
Atanu Bhunia, Priyabrata Char, Subrata Bera +3
The states in the three-qubit GHZ SLOCC class can exhibit diverse entanglement patterns, as they may have no entanglement in any reduced subsystems, or show entanglement across one…
Entanglement of Assistance as a measure of multiparty entanglement
Indranil Biswas, Atanu Bhunia, Subrata Bera +2
Quantifying multipartite entanglement poses a significant challenge in quantum information theory, prompting recent advancements in methodologies to assess it. We introduce the not…