International audience
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May 2021 (v1)Journal articleUploaded on: December 4, 2022
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May 17, 2023 (v1)Publication
Superconducting circuits are highly controllable platforms to manipulate quantum states, which make them particularly promising for quantum information processing. We here show how the existence of a distance-independent interaction between microwave resonators coupled capacitively through a qubit offers a new control parameter toward this...
Uploaded on: May 19, 2023 -
2022 (v1)Journal article
Considering the paradigmatic case of a cloud of two-level atoms interacting through common vacuum modes, we show how cooperative spontaneous emission, which is at the origin of superradiance, leads the system to long-lived entangled states at late times. These subradiant modes are characterized by an entanglement between all particles,...
Uploaded on: February 22, 2023 -
February 27, 2023 (v1)Publication
We present a single-shot method to measure motional states in the number basis. The technique can be applied to systems with at least three non-degenerate energy levels which can be coupled to a linear quantum harmonic oscillator, such as in trapped ion experiments. The method relies on probing an Autler-Townes splitting that arises when two...
Uploaded on: February 28, 2023