1.6k citations · 9.1k across the 112 of their papers we have counts for
9 papers · 2 filters
Vanishing quantum discord is not necessary for completely-positive maps
Aharon Brodutch, Animesh Datta, Kavan Modi +2
The description of the dynamics of a system that may be correlated with its environment is only meaningful within the context of a specific framework. Different frameworks rely upo…
Coherent measurements in quantum metrology
K. Micadei, D. A. Rowlands, F. A. Pollock +3
It is well known that a quantum correlated probe can yield better precision in estimating an unknown parameter than classically possible. However, how such a quantum probe should b…
The relation between nonlocality and contextuality for a biphoton
Akihito Soeda, Pawel Kurzynski, Ravishankar Ramanathan +2
We investigate the set of qutrit states in terms of symmetric states of two qubits that violate the minimal contextual inequality, namely the Klyachko-Can-Binicoglu-Shumovsky (KCBS…
Unification of witnessing initial system-environment correlations and witnessing non-Markovianity
César A. Rodríguez-Rosario, Kavan Modi, Laura Mazzola +1
We show the connection between a witness that detects dynamical maps with initial system-environment correlations and a witness that detects non-Markovian open quantum systems. Our…
Positivity in the presence of initial system-environment correlation
Kavan Modi, César A. Rodríguez-Rosario, Alán Aspuru-Guzik
The constraints imposed by the initial system-environment correlation can lead to nonpositive Dynamical maps. We find the conditions for positivity and complete positivity of such…
Dynamical role of system-environment correlations in non-Markovian dynamics
Laura Mazzola, Cesar A. Rodrıguez-Rosario, Kavan Modi +1
We analyse the role played by system-environment correlations in the emergence of non-Markovian dynamics. By working within the framework developed in Breuer et al., Phys. Rev. Let…