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4 papers · 2 filters
Few-body approach to diffraction of small helium clusters by nanostructures
Gerhard C. Hegerfeldt, Thorsten Köhler
We use few-body methods to investigate the diffraction of weakly bound systems by a transmission grating. For helium dimers, He, we obtain explicit expressions for the transiti…
Coherent and incoherent chaotic tunneling near singlet-doublet crossings
Sigmund Kohler, Ralf Utermann, Peter Hanggi +1
In the spectrum of systems showing chaos-assisted tunneling, three-state crossings are formed when a chaotic singlet intersects a tunnel doublet. We study the dissipative quantum d…
Motion-Induced Radiation from a Dynamically Deforming Mirror
Faez Miri, Ramin Golestanian
A path integral formulation is developed to study the spectrum of radiation from a perfectly reflecting (conducting) surface. It allows us to study arbitrary deformations in space…
Path Integral Approach to the Dynamic Casimir Effect with Fluctuating Boundaries
Ramin Golestanian, Mehran Kardar
A path integral formulation is developed for the dynamic Casimir effect. It allows us to study arbitrary deformations in space and time of the perfectly reflecting (conducting) bou…