Exclusion principle for nonlocal advantage of quantum coherence

P Ghosh, M Pandit, C Srivastava, U Sen - Physical Review A, 2023 - APS
Coherences in mutually unbiased bases of states of an isolated quantum system follow a
complementarity relation. The nonlocal advantage of quantum coherence (NAQC), defined …

Correlation between resource-generating powers of quantum gates

A Bhattacharyya, A Ghoshal, U Sen - Physical Review A, 2023 - APS
We analyze the optimal basis for generating the maximum relative entropy of quantum
coherence by an arbitrary gate on a two-qubit system. The optimal basis is not unique and …

Spread and asymmetry of typical quantum coherence and their inhibition in response to glassy disorder

G Biswas, S Sarkar, A Biswas, U Sen - New Journal of Physics, 2023 - iopscience.iop.org
We consider the average quantum coherences of typical redits and qudits—vectors of real
and complex Hilbert spaces—with the analytical forms stemming from the symmetry of Haar …

Response to glassy disorder in coin on spread of quantum walker

P Ghosh, K Sen, U Sen - arXiv preprint arXiv:2111.09827, 2021 - arxiv.org
We analyze the response to incorporation of glassy disorder in the coin operation of a
discrete-time quantum walk in one dimension. We find that the ballistic spread of the …

[PDF][PDF] ENTANGLEMENT AND OTHER QUANTUM CORRELATIONS IN MANY-BODY SYSTEMS

G Biswas - researchgate.net
We analyze the entanglement, quantum coherence, and shared purity of several manybody
systems. We study the entanglement properties of bipartite and tripartite random quantum …