102 citations · 550 across the 35 of their papers we have counts for
7 papers · 1 filter
Quantum no-go theorems in causality respecting systems in presence of closed timelike curves: Tweaking the Deutsch condition
Asutosh Kumar, Indranil Chakrabarty, Arun Kumar Pati +2
We consider causality respecting (CR) quantum systems interacting with closed timelike curves (CTCs), within the Deutsch model. We introduce the concepts of popping up and eliminat…
Logically reversible measurements: Construction and application
Sunho Kim, Juncheng Wang, Asutosh Kumar +2
We show that for any von Neumann measurement, we can construct a logically reversible measurement such that Shannon entropies and quantum discords induced by the two measurements h…
Information complementarity in multipartite quantum states and security in cryptography
Anindita Bera, Asutosh Kumar, Debraj Rakshit +3
We derive complementarity relations for arbitrary quantum states of multiparty systems, of arbitrary number of parties and dimensions, between the purity of a part of the system an…
Cohering power of quantum operations
Kaifeng Bu, Asutosh Kumar, Lin Zhang +1
Quantum coherence is a basic feature of quantum physics. Combined with tensor product structure of state space, it gives rise to the novel concepts such as entanglement and quantum…
Quantum Coherence: Reciprocity and Distribution
Asutosh Kumar
Quantum coherence is the outcome of the superposition principle. Recently, it has been theorized as a quantum resource, and is the premise of quantum correlations in multipartite s…
Forbidden regimes in the distribution of bipartite quantum correlations due to multiparty entanglement
Asutosh Kumar, Himadri Shekhar Dhar, R. Prabhu +2
Monogamy is a nonclassical property that limits the distribution of quantum correlation among subparts of a multiparty system. We show that monogamy scores for different quantum co…