Zobrazeno 1 - 10
of 99 160
pro vyhledávání: '"A. Eberhard"'
Astronomical spectrographs require frequency calibration through sources like hollow-cathode lamps or absorption-gas cells. Laser frequency combs (LFCs) provide highest accuracy but are facing operational challenges. We aim to provide a precise and a
Externí odkaz:
http://arxiv.org/abs/2409.02631
Autor:
Haze, Shinsuke, Li, Jinglun, Dorer, Dominik, D'Incao, José P., Julienne, Paul S., Tiemann, Eberhard, Deiß, Markus, Denschlag, Johannes Hecker
Gaining control over chemical reactions on the quantum level is a central goal of the modern field of cold and ultracold chemistry. Here, we demonstrate a novel method to coherently steer reaction flux of a three-body recombination process across dif
Externí odkaz:
http://arxiv.org/abs/2408.14922
Autor:
Zhang, Zhao, Van Damme, Léo, Rossignolo, Marco, Festa, Lorenzo, Melchner, Max, Eberhard, Robin, Tsevas, Dimitrios, Mours, Kevin, Reches, Eran, Zeiher, Johannes, Blatt, Sebastian, Bloch, Immanuel, Glaser, Steffen J., Alberti, Andrea
We propose a scheme to perform optical pulses that suppress the effect of photon recoil by three orders of magnitude compared to ordinary pulses in the Lamb-Dicke regime. We derive analytical insight about the fundamental limits to the fidelity of op
Externí odkaz:
http://arxiv.org/abs/2408.04622
Autor:
Killian, Carina, Blumer, Philipp, Crivelli, Paolo, Kloppenburg, Daniel, Nez, Francois, Nesvizhevsky, Valery, Reynaud, Serge, Schreiner, Katharina, Simon, Martin, Vasiliev, Sergey, Widmann, Eberhard, Yzombard, Pauline
A low energy particle confined by a horizontal reflective surface and gravity settles in gravitationally bound quantum states. These gravitational quantum states (GQS) were so far only observed with neutrons. However, the existence of GQS is predicte
Externí odkaz:
http://arxiv.org/abs/2407.15443
Autor:
Gwizdała, Jakub, Oner, Doruk, Roy, Soumava Kumar, Shah, Mian Akbar, Eberhard, Ad, Egorov, Ivan, Krüsi, Philipp, Yakushev, Grigory, Fua, Pascal
Power lines are dangerous for low-flying aircraft, especially in low-visibility conditions. Thus, a vision-based system able to analyze the aircraft's surroundings and to provide the pilots with a "second pair of eyes" can contribute to enhancing the
Externí odkaz:
http://arxiv.org/abs/2407.14352
Autor:
Amsler, Claude, Breuker, Horst, Bumbar, Marcus, Cerwenka, Matti, Costantini, Giovanni, Ferragut, Rafael, Fleck, Markus, Giammarchi, Marco, Gligorova, Angela, Gosta, Giulia, Hunter, Eric David, Killian, Carina, Kolbinger, Bernadette, Kraxberger, Viktoria, Kuroda, Naofumi, Lackner, Moritz, Leali, Marco, Maero, Giancarlo, Mascagna, Valerio, Matsuda, Yasuyuki, Migliorati, Stefano, Murtagh, Daniel James, Nanda, Amit, Nowak, Lilian, Rheinfrank, Simon, Romé, Massimiliano, Simon, Martin C., Tajima, Minori, Toso, Valerio, Ulmer, Stefan, van Beuzekom, Martin, Venturelli, Luca, Weiser, Alina, Widmann, Eberhard, Yamazaki, Yasunori, Zmeskal, Johann
The mechanism of antiproton-nucleus annihilation at rest is not fully understood, despite substantial previous experimental and theoretical work. In this study we used slow extracted, sub-keV antiprotons from the ASACUSA apparatus at CERN to measure
Externí odkaz:
http://arxiv.org/abs/2407.06721
Autor:
Greilhuber, Josef Eberhard
We show that, in dimension three and higher, the space of harmonic functions vanishing on the cone defined by a generically chosen harmonic quadratic polynomial is two-dimensional. This phenomenon is surprisingly robust, generalizing to arbitrary ell
Externí odkaz:
http://arxiv.org/abs/2407.07039
Autor:
Mayerhofer, Eberhard
Publikováno v:
Risks, Special Issue: Optimal Investment and Risk Management, Vol. 12 No. 4 (2024), 64
We propose a general approximation method for determining optimal trading strategies in markets with proportional transaction costs, with a polynomial approximation of the residual value function. The method is exemplified by several problems from op
Externí odkaz:
http://arxiv.org/abs/2407.07100
Double sequence spaces have become a significant area of research within functional analysis due to their applications in various branches of mathematics and mathematical physics. In this study, we investigate Hahn double sequence space denoted as $\
Externí odkaz:
http://arxiv.org/abs/2406.05117
Reinforcement learning has traditionally focused on learning state-dependent policies to solve optimal control problems in a closed-loop fashion. In this work, we introduce the paradigm of open-loop reinforcement learning where a fixed action sequenc
Externí odkaz:
http://arxiv.org/abs/2405.18100