192 citations · 1.3k across the 25 of their papers we have counts for
5 papers · 1 filter
Qubit decoherence under two-axis coupling to low-frequency noises
Guy Ramon, Łukasz Cywiński
Many solid-state qubit systems are afflicted by low frequency noise mechanisms that operate along two perpendicular axes of the Bloch sphere. Depending on the qubit's control field…
Statistics of projective measurement on a quantum probe as a witness of noncommutativity of algebra of a probed system
Fattah Sakuldee, Łukasz Cywiński
We consider a quantum probe undergoing pure dephasing due to its interaction with a quantum system . The dynamics of is then described by a well-defined sub-algebra of o…
Characterization and measurement of qubit-environment entanglement generation during pure dephasing
Katarzyna Roszak, Łukasz Cywiński
We consider the coupling of a qubit in a pure state to an environment in an arbitrary state, and characterize the possibility of qubit-environment entanglement generation during th…
The relation between the quantum discord and quantum teleportation: the physical interpretation of the transition point between different quantum discord decay regimes
Katarzyna Roszak, Łukasz Cywiński
We study quantum teleportation via Bell-diagonal mixed states of two qubits in the context of the intrinsic properties of the quantum discord. We show that when the quantum-correla…
The dynamics of two entangled qubits exposed to classical noise: role of spatial and temporal noise correlations
P. Szańkowski, M. Trippenbach, Ł. Cywiński +1
We investigate the decay of two-qubit entanglement caused by the influence of classical noise. We consider the whole spectrum of cases ranging from independent to fully correlated…