5 papers · 1 filter
Pure State Transformations under Block Coherence
Dipayan Chakraborty, Priyabrata Char, Indrani Chattopadhyay +1
Block coherence provides a natural generalization of standard quantum coherence by treating superpositions across different subspaces as a resource. This work studies deterministic…
Catalytic Enhancement of Coherence in Noisy Quantum Channels and Characterization of Strictly Incoherent Operations
Priyabrata Char, Dipayan Chakraborty, Indrani Chattopadhyay +1
In realistic quantum information processing tasks, quantum states are inevitably affected by environmental noise, leading to decoherence and degradation of useful quantum resources…
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…
Structure of Resource Theory of Block Coherence
Prabir Kumar Dey, Dipayan Chakraborty, Priyabrata Char +3
Emerging from the superposition principle, the resource theory of coherence plays a crucial role in many information-processing tasks. Recently, a generalization to this resource t…
Multipartite Monogamy of Entanglement for Three Qubit States
Priyabrata Char, Dipayan Chakraborty, Prabir Kumar Dey +4
The distribution of entanglement in a multiparty system can be described through the principles of monogamy or polygamy. Monogamy is a fundamental characteristic of entanglement th…