27 citations · 245 across the 30 of their papers we have counts for
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A tomographic approach to the sum uncertainty relation and quantum entanglement in continuous variable systems
Soumyabrata Paul, S. Lakshmibala, V. Balakrishnan +1
Entropic uncertainty relations (EURs) have been examined in various contexts, primarily in qubit systems, including their links with entanglement, as they subsume the Heisenberg un…
Manifestations of changes in entanglement and onset of synchronization in tomograms
Soumyabrata Paul, S. Lakshmibala, V. Balakrishnan +1
Quantum state reconstruction for continuous-variable systems such as the radiation field poses challenges which arise primarily from the large dimensionality of the Hilbert space.…
Exact eigenvalue order statistics for the reduced density matrix of a bipartite system
B. Sharmila, V. Balakrishnan, S. Lakshmibala
We consider the reduced density matrix of a bipartite system of dimensionality in a Gaussian ensemble of random, complex pure states of the composite system…
Tomographic entanglement indicators from NMR experiments
B. Sharmila, V. R. Krithika, Soham Pal +3
In recent years, the performance of different entanglement indicators obtained directly from tomograms has been assessed in continuous-variable and hybrid quantum systems. In this…
Signatures of avoided energy-level crossings in entanglement indicators obtained from quantum tomograms
B. Sharmila, S. Lakshmibala, V. Balakrishnan
Extensive theoretical and experimental investigations on multipartite systems close to an avoided energy-level crossing reveal interesting features such as the extremisation of ent…
Time-series and network analysis in quantum dynamics: Comparison with classical dynamics
Pradip Laha, S. Lakshmibala, V. Balakrishnan
Time-series analysis and network analysis are now used extensively in diverse areas of science. In this paper, we applythese techniques to quantum dynamics in an optomechanical sys…