73 citations · 195 across the 7 of their papers we have counts for
7 papers
Incompatibility of optimized protection of entanglement and teleportation fdelity in the presence of decoherence
Priyanka Chowdhury
Entanglement is the key success of teleporting an unknown quantum state with fidelity higher than classical limit. In the presence of decoherence, entanglement decreases with the s…
Stronger steerability criterion for more uncertain continuous variable systems
Priyanka Chowdhury, Tanumoy Pramanik, Archan S. Majumdar
We derive a fine-grained uncertainty relation for the measurement of two incompatible observables on a single quantum system of continuous variables, and show that continuous varia…
Einstein-Podolsky-Rosen-steering using quantum correlations in non-Gaussian entangled states
Priyanka Chowdhury, Tanumoy Pramanik, A. S. Majumdar +1
In view of the increasing importance of non-Gaussian entangled states in quantum information protocols like teleportation and violations of Bell inequalities, the steering of conti…
Nonlocal continuous variable correlations and violation of Bell's inequality for light beams with topological singularities
Priyanka Chowdhury, A. S. Majumdar, G. S. Agarwal
We consider optical beams with topological singularities which possess Schmidt decomposition and show that such classical beams share many features of two mode entanglement in quan…
Fine-grained lower limit of entropic uncertainty in the presence of quantum memory
T. Pramanik, P. Chowdhury, A. S. Majumdar
The limitation on obtaining precise outcomes of measurements performed on two non-commuting observables of a particle as set by the uncertainty principle in its entropic form, can…
Fine-grained uncertainty relation and entropic uncertainty relation in the presence of quantum memory
T. Pramanik, P. Chowdhury
In presence of quantum memory [M. Berta, M. Christandl, R. Colbeck, J.M. Renes, and R. Renner, Nature Phys. 6, 659 (2010)] the lower bound of entropic uncertainty relation depends…
Strong quantum violation of the gravitational weak equivalence principle by a non-Gaussian wave-packet
P. Chowdhury, D. Home, A. S. Majumdar +3
The weak equivalence principle of gravity is examined at the quantum level in two ways. First, the position detection probabilities of particles described by a non-Gaussian wave-pa…