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12 papers · 2 filters
Quantum reflection and Liouville transformations from wells to walls
Gabriel Dufour, Romain Guérout, Astrid Lambrecht +1
Liouville transformations map in a rigorous manner one Schrödinger equation into another, with a changed scattering potential. They are used here to transform quantum reflection of…
Fluctuations of the Casimir potential above a disordered medium
Nicolas Cherroret, Romain Guérout, Astrid Lambrecht +1
We study the statistical fluctuations of the Casimir potential felt by an atom approaching a dielectric disordered medium. Starting from a microscopic model for the disorder, we ca…
Casimir-Polder induced Rabi oscillations
M. Donaire, M. -P. Gorza, A. Maury +2
We show that the Casimir-Polder interaction may induce coherent oscillations between degenerate atomic states. We illustrate this effect by computing the Casimir-Polder induced Rab…
Geometric origin of negative Casimir entropies: A scattering-channel analysis
Gert-Ludwig Ingold, Stefan Umrath, Michael Hartmann +4
Negative values of the Casimir entropy occur quite frequently at low temperatures in arrangements of metallic objects. The physical reason lies either in the dissipative nature of…
Continuous Generation and Stabilization of Mesoscopic Field Superposition States in a Quantum Circuit
Ananda Roy, Zaki Leghtas, A. Douglas Stone +2
While dissipation is widely considered as being harmful for quantum coherence, it can, when properly engineered, lead to the stabilization of non-trivial pure quantum states. We pr…
Direct photonic coupling of a semiconductor quantum dot and a trapped ion
H. M. Meyer, R. Stockill, M. Steiner +7
Coupling individual quantum systems lies at the heart of building scalable quantum networks. Here, we report the first direct photonic coupling between a semiconductor quantum dot…