Zobrazeno 1 - 10
of 8 558
pro vyhledávání: '"von Have M"'
Autor:
Hausser, H. N., Keller, J., Nordmann, T., Bhatt, N. M., Kiethe, J., Liu, H., von Boehn, M., Rahm, J., Weyers, S., Benkler, E., Lipphardt, B., Doerscher, S., Stahl, K., Klose, J., Lisdat, C., Filzinger, M., Huntemann, N., Peik, E., Mehlstäubler, T. E.
We present a scalable mixed-species Coulomb crystal clock based on the $^1S_0$ $\leftrightarrow$ $^3P_0$ transition in $^{115}$In$^+$. $^{172}$Yb$^+$ ions are co-trapped and used for sympathetic cooling. Reproducible interrogation conditions for mixe
Externí odkaz:
http://arxiv.org/abs/2402.16807
Studying the process of divertor detachment and the associated complex interplay of plasma dynamics and atomic physics processes is of utmost importance for future fusion reactors. Whilst simplified analytical models exist to interpret the general fe
Externí odkaz:
http://arxiv.org/abs/2402.04656
Autor:
Tajik, M., Witte, T., Brand, Ch., Rettig, L., Sothmann, B., Bovensiepen, U., von Hoegen, M. Horn
In this work, we study the heat transfer from electron to phonon system within a five monolayer thin epitaxial Pb film on Si(111) upon fs-laser excitation. The response of the electron system is determined using time-resolved photoelectron spectrosco
Externí odkaz:
http://arxiv.org/abs/2312.04541
This paper explores the ability of physics-informed neural networks (PINNs) to solve forward and inverse problems of contact mechanics for small deformation elasticity. We deploy PINNs in a mixed-variable formulation enhanced by output transformation
Externí odkaz:
http://arxiv.org/abs/2308.12716
Autor:
Cornejo, J. M., Brombacher, J., Coenders, J. -A., von Boehn, M., Meiners, T., Niemann, M., Ulmer, S., Ospelkaus, C.
Publikováno v:
Phys. Rev. Research 5, 033226 (2023)
We demonstrate optical sideband spectroscopy of a single $^9$Be$^+$ ion in a cryogenic 5 Tesla Penning trap using two-photon stimulated-Raman transitions between the two Zeeman sublevels of the $1s^{2}2s$ ground state manifold. By applying two comple
Externí odkaz:
http://arxiv.org/abs/2308.09362
The current state of the art for determining thermoelectric properties is limited to the investigation of electrons or phonons without including the inherent electron-phonon coupling that is in all materials. This gives rise to limitations in accurat
Externí odkaz:
http://arxiv.org/abs/2307.12478
Autor:
Ingeberg, V. W., Siem, S., Wiedeking, M., Choplin, A., Goriely, S., Siess, L., Abrahams, K. J., Arnswald, K., Garrote, F. Bello, Bleuel, D. L., Cederkäll, J., Christoffersen, T. L., Cox, D. M., De Witte, H., Gaffney, L. P., Görgen, A., Henrich, C., Illana, A., Jones, P., Kheswa, B. V., Kröll, T., Majola, S. N. T., Malatji, K. L., Ojala, J., Pakarinen, J., Rainovski, G., Reiter, P., von Schmid, M., Seidlitz, M., Tveten, G. M., Warr, N., Zeiser, F.
Proton-$\gamma$ coincidences from $(\mathrm{d},\mathrm{p})$ reactions between a $^{66}\mathrm{Ni}$ beam and a deuterated polyethylene target have been analyzed with the inverse-Oslo method to find the nuclear level density (NLD) and $\gamma$-ray stre
Externí odkaz:
http://arxiv.org/abs/2307.07153
Autor:
Hohn, M., Barkemeyer, K., von Helversen, M., Bremer, L., Gschrey, M., Schulze, J. -H., Strittmatter, A., Carmele, A., Rodt, S., Bounouar, S., Reitzenstein, S.
Entanglement is a major resource in advanced quantum technology, where it can enable secure exchange of information over large distances. Energy-time entanglement is particularly attractive for its beneficial robustness in fiber-based quantum communi
Externí odkaz:
http://arxiv.org/abs/2301.05697
Autor:
Yudin, V. I., Taichenachev, A. V., Prudnikov, O. N., Basalaev, M. Yu., Pal'chikov, V. G., von Boehn, M., Mehlstäubler, T. E., Bagayev, S. N.
Publikováno v:
Phys. Rev. Applied 19, 014022 (2023)
We investigate the probe field induced shift for atomic lattice-based and ion-trap clocks, which can be considered as a near resonant ac-Stark shift, connected to the Zeeman structure of atomic levels and their splitting in a dc magnetic field. This
Externí odkaz:
http://arxiv.org/abs/2210.01752
Autor:
Simutis, G., Bollhalder, A., Zolliker, M., Küspert, J., Wang, Q., Das, D., Van Leeuwen, F., Ivashko, O., Gutowski, O., Philippe, J., Kracht, T., Glaevecke, P., Adachi, T., Von Zimmermann, M., Van Petegem, S., Luetkens, H., Guguchia, Z., Chang, J., Sassa, Y., Bartkowiak, M., Janoschek, M.
Publikováno v:
Review of Scientific Instruments 94, 013906 (2023)
We present an in-situ uniaxial pressure device optimized for small angle X-ray and neutron scattering experiments at low-temperatures and high magnetic fields. A stepper motor generates force, which is transmitted to the sample via a rod with integra
Externí odkaz:
http://arxiv.org/abs/2207.13194