15 oct. Ces mécanismes d’électrodynamique quantique, dont l’étude processus collectifs, relativistes et d’électrodynamique quantique, nous avons. Cavity Quantum Electrodynamics. Our research activity focuses on the manipulation of Rydberg atoms in three different experimental configurations: coupled to. I- Introduction à l’Electrodynamique quantique en cavité. J.M. Raimond. Université Pierre et Marie Curie. Page 2. 2. Experiments on simple quantum systems.

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In order to model their intricate interplay with the laser-induced plasma processes, they have been implemented within the particle-in-cell code calder developed at CEA. Tuesday, April 9, – 3: This system supports a diamond-shape artificial atom where we define logical and ancilla qubits coupled through a cross-Kerr like term.

Simulations show that this original method can be faster and have higher fidelity than methods currently used in circuit QED. Mathieu Lobet 1, 2 Details. Radiative and quantum electrodynamics effects in extreme intensity laser-matter interaction. Monday, October 15, – 3: Quantum electrodynamics in superconducting artificial atoms. Depending on the logical qubit state, the ancilla is resonantly or dispersively coupled to the resonator, leading to a large contrast in the transmitted microwave signal amplitude.


Igor Diniz 1 AuthorId: In a first part, we study these QED processes in the interaction of an ultra-intense slectrodynamique with a micrometric overdense target.

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Quantum optics Quantum information Superconducting circuits Hybrid circuits Cavity quantum electrodynamics. In a second part, we consider positron generation in the collision between qhantique GeV electron bunch issued from a laser-wake eld accelerator and a counterpropagating laser pulse. We find that their coherence depends crucially on the shape of the distribution and not only on its width.

The modeling is shown to be a powerful tool to obtain the properties of the spin ensembles coupled to a resonator. Mathieu Lobet 1, 2 AuthorId: Tuesday, January 8, – 4: Igor Diniz 1 Details.

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This PhD thesis is concerned with the regime of uqantique laser-matter interaction that should be accessed on upcoming multi-petawatt facilities e.

Electrodynamique quantique des atomes artificiels supraconducteurs. Taking into account the inhomogeneous broadening allows to simulate with a great accuracy a number of pioneer experimental results on a ensemble of NV centers.

TEL – Thèses en ligne – Electrodynamique quantique des atomes artificiels supraconducteurs

This thesis focuses on two problems in circuit quantum electrodynamics. We discuss the influence of the emitters inhomogeneous broadening on the existence and on the coherence properties of the polaritonic peaks. Wednesday, May 11, – 1: We first investigate theoretically the coupling of a resonator to a continuous distribution of inhomogeneously broadened emitters.

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Such systems benefit from the collective enhancement of the interaction strength, while keeping the relaxation properties of a single emitter. Studying this formalism is strongly motivated by recent proposals to use collections of emitters as quantum memories for qantique excitations.

Tuesday, August 21, – In a third part, we analyze a prospective scheme of astrophysical interest, consisting in the collision between two dense pair plasmas produced from solid targets irradiated at Wcm-2 showing a fast-growing magnetic lamentation instability amplified by intense quanitque emission.

These quantum electrodynamic processes, which until recently could only be explored on large-scale particle accelerators, can greatly alter the “standard” mechanisms of laser-plasma interaction, and therefore its overall energy budget.