22 citations · 53 across the 7 of their papers we have counts for
7 papers · 1 filter
Local sum uncertainty relations for angular momentum operators of bipartite permutation symmetric systems
I. Reena, H. S. Karthik, J. Prabhu Tej +3
We show that violation of variance based local sum uncertainty relation (LSUR) for angular momentum operators of a bipartite system, proposed by Hofmann and Takeuchi~[Phys.Rev.A {\…
N term pairwise correlation inequalities, steering and joint measurability
H. S. Karthik, A. R. Usha Devi, J. Prabhu Tej +3
Chained correlation inequalities involving pairwise correlations of qubit observables in the equatorial plane are constructed based on the positivity of a sequence of moment matric…
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…
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…
Entropic uncertainty assisted by temporal memory
H. S. Karthik, A. R. Usha Devi, J. Prabhu Tej +1
The uncertainty principle brings out intrinsic quantum bounds on the precision of measuring non-commuting observables. Statistical outcomes in the measurement of incompatible obser…
Equivalence of classicality and separability based on P phase-space representation of symmetric multiqubit states
A R Usha Devi, A K Rajagopal, Sudha +2
Classical and quantum world views differ in peculiar ways. Understanding decisive quantum features -- for which no classical explanation exist -- and their interrelations is of fou…
Quantum reading of digital memory with non-Gaussian entangled light
J. Prabhu Tej, A. R. Usha Devi, A. K. Rajagopal
It has been shown recently (Phys. Rev. Lett. 106, 090504 (2011)) that entangled light with Einstein-Podolsky-Rosen (EPR) correlations retrieves information from digital memory bett…