Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Skulte, Jim"'
Autor:
Cosme, Jayson G., Kongkhambut, Phatthamon, Bölian, Anton, Tuquero, Richelle Jade L., Skulte, Jim, Mathey, Ludwig, Hemmerich, Andreas, Keßler, Hans
Using a quantum gas setup consisting of a Bose-Einstein condensate strongly coupled to a high-finesse optical cavity by a transverse pump laser, we experimentally observe an instability of a dissipative continuous time crystal (CTC) towards a time cr
Externí odkaz:
http://arxiv.org/abs/2411.00155
Autor:
Cabrera, Cesar R., Henke, René, Broers, Lukas, Skulte, Jim, Collado, H. P. Ojeda, Biss, Hauke, Mathey, Ludwig, Moritz, Henning
Fermionic pairing and the superfluid order parameter change dramatically in low-dimensional systems such as high-T$_c$ superconductors. Here we show how the order parameter dynamics, which defines essential collective properties, is modified by stron
Externí odkaz:
http://arxiv.org/abs/2407.12645
Autor:
Kongkhambut, Phatthamon, Cosme, Jayson G., Skulte, Jim, Armijos, Michelle A. Moreno, Mathey, Ludwig, Hemmerich, Andreas, Keßler, Hans
Discrete (DTCs) and continuous time crystals (CTCs) are novel dynamical many-body states, that are characterized by robust self-sustained oscillations, emerging via spontaneous breaking of discrete or continuous time translation symmetry. DTCs are pe
Externí odkaz:
http://arxiv.org/abs/2402.12378
Autor:
Skulte, Jim, Kongkhambut, Phatthamon, Keßler, Hans, Hemmerich, Andreas, Mathey, Ludwig, Cosme, Jayson G.
Publikováno v:
Phys. Rev. A 109, 063317 (2024)
We propose a general mechanism for generating limit cycle (LC) oscillations by coupling a linear bosonic mode to a dissipative nonlinear bosonic mode. By analyzing the stability matrix, we show that LCs arise due to a supercritical Hopf bifurcation.
Externí odkaz:
http://arxiv.org/abs/2401.05332
Parametric resonances and amplification have led to extraordinary photoinduced phenomena in pump-probe experiments. While these phenomena manifest themselves in out-of-equilibrium settings, here, we present the striking result of parametric amplifica
Externí odkaz:
http://arxiv.org/abs/2312.14243
Using an atom-cavity platform, we propose to combine the effective gauge phase of rotated neutral atoms and the superradiant phase transition to build a highly sensitive and fast quantum rotation sensor. The atoms in a well-controlled array of Bose-E
Externí odkaz:
http://arxiv.org/abs/2303.13468
Publikováno v:
Phys. Rev. B 108, 024302 (2023)
We elucidate the role that the dissipation in a bosonic channel plays in the prevalence and stability of time crystals (TCs) in a periodically driven spin-boson system described by the Dicke model. Here, the bosons are represented by photons, and the
Externí odkaz:
http://arxiv.org/abs/2303.13334
Autor:
Skulte, Jim, Kongkhambut, Phatthamon, Rao, Sahana, Mathey, Ludwig, Keßler, Hans, Hemmerich, Andreas, Cosme, Jayson G.
We demonstrate condensate formation in a dark state in an ultracold quantum gas coupled to a high-finesse cavity and pumped by a shaken optical lattice. We show experimentally and theoretically that the atoms in the dark state display a strong suppre
Externí odkaz:
http://arxiv.org/abs/2209.03342
Publikováno v:
Phys. Rev. A 105, 043311 (2022)
While the recently realized dissipative time crystal in a laser-pumped atom-cavity system in the experiment of Ke{\ss}ler et al. [Phys. Rev. Lett. 127, 043602 (2021)] is qualitatively consistent with a theoretical description in an idealized limit, h
Externí odkaz:
http://arxiv.org/abs/2202.11952
Autor:
Kongkhambut, Phatthamon, Skulte, Jim, Mathey, Ludwig, Cosme, Jayson G., Hemmerich, Andreas, Keßler, Hans
Publikováno v:
Science 377, 6606, pp. 670-673 (2022)
Time crystals are classified as discrete or continuous depending on whether they spontaneously break discrete or continuous time translation symmetry. While discrete time crystals have been extensively studied in periodically driven systems since the
Externí odkaz:
http://arxiv.org/abs/2202.06980