5 papers
Quantum Process Randomness
Sreetama Das, Asutosh Kumar, Aditi Sen De +1
We study the optimization of any quantum process by minimizing the "randomness" in the measurement result at the output of that quantum process. We conceptualize and propose a meas…
Partial coherence and quantum correlation with fidelity and affinity distances
Chunhe Xiong, Asutosh Kumar, Minyi Huang +3
A fundamental task in any physical theory is to quantify certain physical quantity in a meaningful way. In this paper we show that both fidelity distance and affinity distance sati…
Interrelation between Partial Coherence and Quantum Correlations
Sunho Kim, Longsuo Li, Asutosh Kumar +1
Both coherence and entanglement stem from the superposition principle, capture quantumness of a physical system, and play a central role in quantum physics. In a multipartite quant…
Family of coherence measures and duality between quantum coherence and path distinguishability
Chunhe Xiong, Asutosh Kumar, Junde Wu
Coherence measures and their operational interpretations lay the cornerstone of coherence theory. In this paper, we introduce a class of coherence measures with -affinity, say $…
Lower bounds on violation of monogamy inequality for quantum correlation measures
Asutosh Kumar, Himadri Shekhar Dhar
In multiparty quantum systems, the monogamy inequality proposes an upper bound on the distribution of bipartite quantum correlation between a single party and each of the remaining…