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5 papers · 2 filters
Joint measurability, steering and entropic uncertainty
H. S. Karthik, A. R. Usha Devi, A. K. Rajagopal
The notion of incompatibility of measurements in quantum theory is in stark contrast with the corresponding classical perspective, where all physical observables are jointly measur…
Joint Measurability and Temporal Steering
H. S. Karthik, J. Prabhu Tej, A. R. Usha Devi +1
Quintino et. al. (Phys. Rev. Lett. 113, 160402 (2014)) and Uola et. al. (Phys. Rev. Lett. 113, 160403 (2014)) have recently established an intrinsic relation between non-joint meas…
What does monogamy in higher powers of a correlation measure mean?
P. J. Geetha, Sudha, A. R. Usha Devi
We examine here the proposition that all multiparty quantum states can be made monogamous by considering positive integral powers of any quantum correlation measure. With Rajagopal…
Bipartite separability of one parameter families of states using conditional quantum relative Tsallis entropy
Anantha S Nayak, Sudha, A. K. Rajagopal +1
In any bipartition of a quantum state, it is proved that the negative values of the conditional version of sandwiched Tsallis relative entropy necessarily implies quantum entanglem…
Quantum which-way information and fringe visibility when the detector is entangled with an ancilla
J. Prabhu Tej, A. R. Usha Devi, H. S. Karthik +2
Quantum mechanical wave-particle duality is quantified in terms of a trade-off relation between the fringe visibility and the which-way distinguishability in an interference experi…