14 citations · 57 across the 13 of their papers we have counts for
14 papers · 1 filter
Inequivalent Quantum Resources from Multipartite State Discrimination
Srijani Das, Tuhin Paul, Manasi Patra +2
Any two orthogonal quantum states can be perfectly distinguished via local operations and classical communication (LOCC), yet whether all orthogonal multipartite pairs incur an ide…
Hierarchy of hidden nonlocality: A genuine activation of Incompletability
Soumajit Das, Shampa Mondal, Preeti Parashar +1
Quantum nonlocality admits several operational manifestations, one of which emerges from sets of orthogonal quantum states that cannot be perfectly distinguished by local operation…
Incompleteness is necessary for activation of nonlocality without entanglement
Atanu Bhunia, Saronath Halder, Preeti Parashar +1
A set of orthogonal product states is said to exhibit "quantum nonlocality without entanglement" if it is locally indistinguishable, i.e. no sequence of local operations and classi…
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…
Classifying locally distinguishable sets: No activation across bipartitions
Atanu Bhunia, Saronath Halder, Ritabrata Sengupta
A set of orthogonal quantum states is said to be locally indistinguishable if they cannot be perfectly distinguished by local operations and classical communication (LOCC). Otherwi…
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…
Exploring strong locality : Quantum state discrimination regime and beyond
Subrata Bera, Atanu Bhunia, Indranil Biswas +2
Based on the conviction of switching information from locally accessible to locally hidden environs, the concept of hidden nonlocality activation has recently been highlighted by B…
Strong quantum nonlocality: Unextendible biseparability beyond unextendible product basis
Atanu Bhunia, Subrata Bera, Indranil Biswas +2
An unextendible biseparable basis (UBB) is a set of orthogonal pure biseparable states which span a subspace of a given Hilbert space while the complementary subspace contains only…
More assistance of entanglement, less rounds of classical communication
Atanu Bhunia, Indranil Biswas, Indrani Chattopadhyay +1
Classical communication plays a crucial role to distinguish locally a class of quantum states. Despite considerable advances, we have very little knowledge about the number of meas…
Entangled state distillation from single copy mixed states beyond LOCC
Indranil Biswas, Atanu Bhunia, Indrani Chattopadhyay +1
No pure entangled state can be distilled from a or mixed state by separable operations. In , pure entanglement can be distilled by separable o…
Nonlocality without entanglement: Party asymmetric case
Atanu Bhunia, Indrani Chattopadhyay, Debasis Sarkar
A set of orthogonal product states of a composite Hilbert space is genuinely nonlocal if the states are locally indistinguishable across any bipartition. In this work, we construct…
Nonlocality of tripartite orthogonal product states
Atanu Bhunia, Indrani Chattopadhyay, Debasis Sarkar
Local distinguishability of orthogonal product states is an area of active research in quantum information theory. However, most of the relevant results about local distinguishabil…