New Prospects for de Broglie Interferometry

Juffmann, Thomas; Nimmrichter, Stefan; Arndt, Markus; Gleiter, H.; Hornberger, Klaus

doi:10.1007/s10701-010-9520-5

Cited by 28 publications

(25 citation statements)

References 59 publications

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“…At the same time, these side chains will not modify the non-polar character of TPP. This is beneficial for the desorption and ionization process [21] as well as for certain future quantum experiments [32]. In the following we describe the molecular synthesis, neutral laser desorption of slow beams, as well as the single-photon ionization of tailor-made particles in excess of 10 kDa.…”

Section: Introductionmentioning

confidence: 99%

Single-Photon Ionization of Organic Molecules Beyond 10 kDa

Schmid

Stöhr

Arndt

et al. 2013

J. Am. Soc. Mass Spectrom.

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The volatilization and soft ionization of complex neutral macromolecules at low energies has remained an outstanding challenge for several decades [1]. Most volatilization techniques in mass spectrometry produce ions already in the source and most of them lead to particle velocities in excess of several hundred meters per second. For many macromolecules, post-ionization is inefficient since electronic or optical excitations can be followed by competing non-ionizing internal conversion, electron recapture, or fragmentation processes. Here, we explore the laser-assisted volatilization of neutral perfluoroalkyl-functionalized tetraphenylporphyrins as well as their single-photon ionization using vacuum ultraviolet (VUV) light at 157 nm. A systematic investigation of the ionization curves allows us to determine the molecular velocity distribution and ionization cross sections. We demonstrate the detection of single photon ionized intact organic molecules in excess of 10 kDa from a slow molecular beam.

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Section: Introductionmentioning

confidence: 99%

Single-Photon Ionization of Organic Molecules Beyond 10 kDa

Schmid

Stöhr

Arndt

et al. 2013

J. Am. Soc. Mass Spectrom.

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“…Very refined and ingenious interferometers and detectors for electrons [1], neutrons [2][3][4], atoms [5][6][7], molecules [7,8] and photons [9,10] have been devised to demonstrate that the quantum interference pattern can be build up by means of the accumulation of single detection events. Even before the realization of these experiments, De Broglie [11] and Bohm [12] argued that particles with mass possess simultaneously wave and particle properties, and would move within an interferometer along trajectories determined by the guidance equation…”

Section: Introductionmentioning

confidence: 99%

Trajectory-based interpretation of Young's experiment, the Arago–Fresnel laws and the Poisson–Arago spot for photons and massive particles

Davidović¹,

Sanz²,

Božić³

et al. 2013

Phys. Scr.

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Abstract. We present a trajectory based interpretation for Young's experiment, the Arago-Fresnel laws and the Poisson-Arago spot. This approach is based on the equation of the trajectory associated with the quantum probability current density in the case of massive particles, and the Poynting vector for the electromagnetic field in the case of photons. Both the form and properties of the evaluated photon trajectories are in good agreement with the averaged trajectories of single photons observed recently in Young's experiment by Steinberg's group at the University of Toronto. In the case of the Arago-Fresnel laws for polarized light, the trajectory interpretation presented here differs from those interpretations based on the concept of "which-way" (or "which-slit") information and quantum erasure. More specifically, the observer's information about the slit that photons went through is not relevant to the existence of interference; what is relevant is the form of the electromagnetic energy density and its evolution, which will model consequently the distribution of trajectories and their topology. Finally, we also show that the distributions of end points of a large number of evaluated photon trajectories are in agreement with the distributions measured at the screen behind a circular disc, clearly giving rise to the Poisson-Arago spot.

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“…[16] studies the interference patterns (Poisson spot) from molecules scattered by a disk. The theoretical calculations used in conjunction with such matter-wave experiments tend to rely on rather oversimplified expressions for the atom-obstacle dispersive interactions [17]. As we can see in Fig.…”

Section: B Energy Shiftmentioning

confidence: 99%

Exact dispersion-force potentials: Interaction of an atom with a conductor-patched dielectric surface

Eberlein

Zietal

2012

Phys. Rev. A

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Article (Published Version) http://sro.sussex.ac.uk Eberlein, Claudia and Zietal, Robert (2012) Exact dispersion-force potentials: interaction of an atom with a conductor-patched dielectric surface. Physical Review A, 86 (5). 052522-1. ISSN 1050052522-1. ISSN -2947 This version is available from Sussex Research Online: http://sro.sussex.ac.uk/44321/ This document is made available in accordance with publisher policies and may differ from the published version or from the version of record. If you wish to cite this item you are advised to consult the publisher's version. Please see the URL above for details on accessing the published version. Copyright and reuse:Sussex Research Online is a digital repository of the research output of the University.Copyright and all moral rights to the version of the paper presented here belong to the individual author(s) and/or other copyright owners. To the extent reasonable and practicable, the material made available in SRO has been checked for eligibility before being made available.Copies of full text items generally can be reproduced, displayed or performed and given to third parties in any format or medium for personal research or study, educational, or not-for-profit purposes without prior permission or charge, provided that the authors, title and full bibliographic details are credited, a hyperlink and/or URL is given for the original metadata page and the content is not changed in any way. We study the interaction between a neutral atom or molecule and a conductor-patched dielectric surface. We model this system by a perfectly reflecting disk lying atop a nondispersive dielectric half-space, both interacting with the neutral atom or molecule. We assume the interaction to be nonretarded and at zero temperature. We find an exact solution to this problem. In addition, we generate a number of other useful results. For the case of no substrate, we obtain the exact formula for the van der Waals interaction energy of an atom near a perfectly conducting disk. We show that the force acting on an atom that is polarized in the direction normal to the surface of the disk displays intricate behavior. This part of our results is directly relevant to recent matter-wave experiments in which cold molecules are scattered by a radially symmetric object in order to study interference patterns and the so-called Poisson spot. Furthermore, we give an exact expression for the nonretarded limit of the dispersion force potential between an atom and a perfectly conducting bowl.

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New Prospects for de Broglie Interferometry

Cited by 28 publications

References 59 publications

Single-Photon Ionization of Organic Molecules Beyond 10 kDa

Single-Photon Ionization of Organic Molecules Beyond 10 kDa

Trajectory-based interpretation of Young's experiment, the Arago–Fresnel laws and the Poisson–Arago spot for photons and massive particles

Exact dispersion-force potentials: Interaction of an atom with a conductor-patched dielectric surface

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