35 citations · 89 across the 10 of their papers we have counts for
10 papers
Divergence-free approach for obtaining decompositions of quantum-optical processes
K. K. Sabapathy, J. S. Ivan, R. García-Patrón +1
Operator-sum representations of quantum channels can be obtained by applying the channel to one subsystem of a maximally entangled state and deploying the channel-state isomorphism…
Scaling maps of -ordered quasiprobabilities are either nonpositive or completely positive
J. Solomon Ivan, Krishna Kumar Sabapathy, R. Simon
Continuous-variable systems in quantum theory can be fully described through any one of the -ordered family of quasiprobabilities , . We…
Is nonclassicality-breaking the same thing as entanglement-breaking?
J. Solomon Ivan, Krishna Kumar Sabapathy, R. Simon
Nonclassicality and entanglement are notions fundamental to quantum information processes involving continuous variable systems. That these two notions are intimately related has b…
Quantum discord plays no distinguished role in characterization of complete positivity: Robustness of the traditional scheme
Krishna Kumar Sabapathy, J. Solomon Ivan, Sibasish Ghosh +1
The traditional scheme for realizing open-system quantum dynamics takes the initial state of the system-bath composite as a simple product. Currently, however, the issue of system-…
Classical Light Sources with Tunable Temporal Coherence and Tailored Photon Number Distributions
Deepak Pandey, Nandan Satapathy, Buti Suryabrahmam +2
We demonstrate the generation of classical incoherent light with electronic control over its temporal characteristics and photon number distribution. The tunability of the temporal…
Invariant theoretic approach to uncertainty relations for quantum systems
J Solomon Ivan, Krishna Kumar Sabapathy, N. Mukunda +1
We present a general framework and procedure to derive uncertainty relations for observables of quantum systems in a covariant manner. All such relations are consequences of the po…