52 citations
- Bangalore UniversityIN2 papers
- Institut Supérieur des Matériaux du MansFR2 papers
- Mie UniversityJP2 papers
- CEA Paris-SaclayFR1 paper
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR1 paper
- George Mason UniversityUS1 paper
- Institut des NanoSciences de ParisFR1 paper
- Institut National de Santé PubliqueCI1 paper
- Laboratoire Léon BrillouinFR1 paper
- University of BristolGB1 paper
4 papers · 1 filter
Quantum target detection using entangled photons
A. R. Usha Devi, A. K. Rajagopal
We investigate performances of pure continuous variable states in discriminating thermal and identity channels by comparing their M-copy error probability bounds. This offers us a…
Dynamical evolution of quantum oscillators towards equilibrium
A R Usha Devi, A K Rajagopal
A pure quantum state of large number N of oscillators, interacting via harmonic coupling, evolves such that any small subsystem n<<N of the global state approaches equilibrium. Thi…
Separability bounds on multiqubit moments due to positivity under partial transpose
A R Usha Devi, A K Rajagopal
Positivity of the density operator reflects itself in terms of sequences of inequalities on observable moments. Uncertainty relations for non-commuting observables form a subset of…
Generalized information theoretic measure to discern the quantumness of correlations
A. R. Usha Devi, A. K. Rajagopal
A novel measure, quantumness of correlations is introduced here for bipartite states, by incorporating the required measurement scheme crucial in defining any such quantity. Quantu…