Optimized Atom Interferometer Design Including van der Waals Interactions
نویسندگان
چکیده
The problem of designing an atom interferometer with optimum sensitivity to de Broglie wave phase shifts is revisited. Because van der Waals interactions affect how efficiently material gratings work as beam splitters, we find the optimum open fraction for each of the gratings in a three-grating Mach Zehnder atom interferometer depends on the van der Waals interaction strength as well as the atom velocity and grating period.
منابع مشابه
Average and extreme multi-atom Van der Waals interactions: Strong coupling of multi-atom Van der Waals interactions with covalent bonding
BACKGROUND The prediction of ligand binding or protein structure requires very accurate force field potentials - even small errors in force field potentials can make a 'wrong' structure (from the billions possible) more stable than the single, 'correct' one. However, despite huge efforts to optimize them, currently-used all-atom force fields are still not able, in a vast majority of cases, even...
متن کاملObservation of atom wave phase shifts induced by van der Waals atom-surface interactions.
The development of nanotechnology and atom optics relies on understanding how atoms behave and interact with their environment. Isolated atoms can exhibit wavelike (coherent) behavior with a corresponding de Broglie wavelength and phase which can be affected by nearby surfaces. Here an atom interferometer is used to measure the phase shift of Na atom waves induced by the walls of a 50 nm wide c...
متن کاملDetermination of the Second Virial Coefficient for Binary Mixtures of Ar with CH4 and CO using Van der Waals and Dieterici Models
In this paper, we calculate the second virial coefficient for binary mixtures of Ar with CH4 and CO in order to evaluate the performance of equations of state (EOSs). The investigated EOSs are van der Waals (vdW), Redlich-Kwong (RK), Peng-Robinson (PR), Carnahan-Starling–van der Waals (CS-vdW) and Guggenheim-van der Waals (G-vdW) based on van der Waals model. In our work, we also use Dieterici ...
متن کامل. at om - p h ] 2 0 Ju n 20 05 de Broglie Wave Phase Shifts Induced by Surfaces Closer than 25 nm
Four atom optics experiments that each serve to measure atom-surface interactions near nanofabricated gratings are presented here. In these experiments atoms in a beam travel within 25 nm of a material grating bar, and the analysis incorporates phase shifts for the atomic de Broglie waves due to interactions betwen Na atoms and silicon nitride surfaces. One atom diffraction experiment determine...
متن کاملModeling of the intermolecular Force-Induced Adhesion in Freestanding Nanostructures Made of Nano-beams
Among the intermolecular interactions, the Casimir and van der Waals forces are the most important forces that highly affect the behavior of nanostructures. This paper studies the effect of such forces on the adhesion of cantilever freestanding nanostructures. The nanostructures are made of a freestanding nano-beam which is suspended between two upper and lower conductive surfaces. The linear s...
متن کامل