647 citations · 5.7k across the 161 of their papers we have counts for
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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…
Uncertainty relations for general unitary operators
Shrobona Bagchi, Arun Kumar Pati
We derive several uncertainty relations for two arbitrary unitary operators acting on physical states of a Hilbert space. We show that our bounds are tighter in various cases than…
Average subentropy, coherence and entanglement of random mixed quantum states
Lin Zhang, Uttam Singh, Arun Kumar Pati
Compact expressions for the average subentropy and coherence are obtained for random mixed states that are generated via various probability measures. Surprisingly, our results sho…
Average coherence and its typicality for random pure states
Uttam Singh, Lin Zhang, Arun Kumar Pati
We investigate the generic aspects of quantum coherence guided by the concentration of measure phenomenon. We find the average relative entropy of coherence of pure quantum states…
Pancharatnam phase deficit can detect macroscopic entanglement
Namrata Shukla, Arun Kumar Pati
The Pancharatnam phase deficit is defined as the difference between the Pancharat- nam phase acquired by the global system and the sum of the Pancharatnam phases acquired by subsys…
Non-Local Advantage of Quantum Coherence
Debasis Mondal, Tanumoy Pramanik, Arun Kumar Pati
A bipartite state is said to be steerable if and only if it does not have a single system description, i.e., the bipartite state cannot be explained by a local hidden state model.…