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- Centre National de la Recherche ScientifiqueFR640 papers
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30 papers · 2 filters
Fidelity of Fock-state-encoded qubits subjected to continuous variable Gaussian processes
Brian Julsgaard, Klaus Mølmer
When a harmonic oscillator is under the influence of a Gaussian process such as linear damping, parametric gain, and linear coupling to a thermal environment, its coherent states a…
Quantum repeater with Rydberg blocked atomic ensembles in fiber-coupled cavities
E. Brion, F. Carlier, V. M. Akulin +1
We propose and analyze a quantum repeater architecture in which Rydberg blocked atomic ensembles inside optical cavities are linked by optical fibers. Entanglement generation, swap…
Quantized resonator field coupled to a current-biased Josephson junction in circuit QED
Christian Kraglund Andersen, Gregor Oelsner, Evgeni Il'ichev +1
A Lagrangian formalism is used to derive the Hamiltonian for a /4 resonator shunted by a current-biased Josephson junction. The eigenstates and the quantum dynamics of the syste…
A Hidden Markov Model of atomic quantum jump dynamics in an optically probed cavity
S. Gammelmark, W. Alt, T. Kampschulte +2
We analyze the quantum jumps of an atom interacting with a cavity field. The strong atom- field interaction makes the cavity transmission depend on the time dependent atomic state,…
Reconfigurable long-range phonon dynamics in optomechanical arrays
André Xuereb, Claudiu Genes, Guido Pupillo +2
We investigate periodic optomechanical arrays as reconfigurable platforms for engineering the coupling between multiple mechanical and electromagnetic modes and for exploring many-…
Interference of Identical Particles from Entanglement to Boson-Sampling
Malte C. Tichy
Progress in the reliable preparation, coherent propagation and efficient detection of many-body states has recently brought collective quantum phenomena of many identical particles…