Výsledky vyhledávání - "Stefan Wehinger"

Akademický článek

The Implementation and Comparison of Conventional and Enhanced Borehole Thermal Response Tests: A Case Study

Autor: João de Sousa Figueira, Stefan Nachbaur, Stefan Wehinger, Peter Bourne-Webb

Publikováno v: Energies, Vol 17, Iss 13, p 3161 (2024)

Ground source heat pump (GSHP) systems depend on the capacity for heat transfer between the system and the ground, and it is good practice to carry out an in situ thermal response test (TRT) to determine the undisturbed ground temperature, the therma

Externí odkaz: https://doaj.org/article/c9813eeb3e5f4a8db3a1225fc71c9d26

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Interferometry with Atoms and Moleculesa

Autor: Christopher R. Ekstrom, Michael Chapman, David E. Pritchard, Stefan Wehinger, Richard Rubenstein, Jörg Schmiedmayer, Troy D. Hammond, Alan Lenef

Publikováno v: Annals of the New York Academy of Sciences. 755:192-216

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bedfe9ad7bd3bcef58292564ee023044
https://doi.org/10.1111/j.1749-6632.1995.tb38967.x

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Index of Refraction of Various Gases for Sodium Matter Waves

Autor: Stefan Wehinger, David E. Pritchard, Christopher R. Ekstrom, Michael Chapman, Troy D. Hammond, Jörg Schmiedmayer

Publikováno v: Physical Review Letters. 74:1043-1047

By inserting a gas cell in one arm of an atom interferometer, we have measured both the attenuation and the phase shift of a sodium matter wave that passes through monatomic (He, Ne, Ar, Kr, and Xe) or molecular gases (${\mathrm{N}}_{2}$, C${\mathrm{

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e5393fd4633e7bc6af67f3b0011609c0
https://doi.org/10.1103/physrevlett.74.1043

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Near-field imaging of atom diffraction gratings: The atomic Talbot effect

Autor: Troy D. Hammond, Bridget E. Tannian, David E. Pritchard, Stefan Wehinger, Michael Chapman, Christopher R. Ekstrom, Jörg Schmiedmayer

Publikováno v: Physical Review A. 51:R14-R17

We have demonstrated the Talbot effect, the self-imaging of a periodic structure, with atom waves. We have measured the successive recurrence of these self-images as a function of the distance from the imaged grating. This is a near-field interferenc

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1882eec2be4213837222a8395af2a7fb
https://doi.org/10.1103/physreva.51.r14

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Nondispersive phase of the Aharonov-Bohm effect

Autor: Achim Kollmar, Harald Weinfurter, Gerald Badurek, Roland Gähler, Anton Zeilinger, Stefan Wehinger

Publikováno v: Physical Review Letters. 71:307-311

An essential signature of the topological nature of all Aharonov-Bohm type phases is that they are nondispersive, i.e., independent of the velocity (wavelength) of the interfering particles. This implies that an Aharonov-Bohm phase shift can greatly

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3b851e35f2d4d3f17745e8ecd8031272
https://doi.org/10.1103/physrevlett.71.307

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Optics and interferometry with Na2 molecules

Autor: Stefan Wehinger, Richard Rubenstein, Troy D. Hammond, David E. Pritchard, Jörg Schmiedmayer, Michael Chapman, Christopher R. Ekstrom

Publikováno v: Physical review letters. 74(24)

We have produced an intense, pure beam of sodium molecules (Na2) by using light forces to separate the atomic and molecular species in a seeded supersonic beam. We used diffraction from a microfabricated grating to study the atomic and molecular sodi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::42c36657a72124bd1a4930e14061e3eb
https://pubmed.ncbi.nlm.nih.gov/10058598

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