120 citations · 585 across the 22 of their papers we have counts for
22 papers
Bures geodesics and quantum metrology
Dominique Spehner
We study the geodesics on the manifold of mixed quantum states for the Bures metric. It is shown that these geodesics correspond to physical non-Markovian evolutions of the system…
Persistent currents in Bose-Bose mixtures after an interspecies interaction quench
Dominique Spehner, Luis Morales-Molina, Sebastián Reyes
We study the persistent currents and interspecies entanglement generation in a Bose-Bose mixture formed by two atomic gases (hereafter labelled by the letters A and B) trapped in a…
Bosons in a double well: two-mode approximation and fluctuations
Alessandro Olgiati, Nicolas Rougerie, Dominique Spehner
We study the ground state for many interacting bosons in a double-well potential, in a joint limit where the particle number and the distance between the potential wells both go to…
Adiabatic transitions in a two-level system coupled to a free Boson reservoir
Alain Joye, Marco Merkli, Dominique Spehner
We consider a time-dependent two-level quantum system interacting with a free Boson reservoir. The coupling is energy conserving and depends slowly on time, as does the system Hami…
Interacting bosons in a double-well potential : localization regime
Nicolas Rougerie, Dominique Spehner
We study the ground state of a large bosonic system trapped in a symmetric double-well potential, letting the distance between the two wells increase to infinity with the number of…
Geometric measures of quantum correlations with Bures and Hellinger distances
D. Spehner, F. Illuminati, M. Orszag +1
This article contains a survey of the geometric approach to quantum correlations. We focus mainly on the geometric measures of quantum correlations based on the Bures and quantum H…