Zobrazeno 1 - 10
of 752
pro vyhledávání: '"Schmidt, Jan P."'
Resonance states in quantum chaotic scattering systems have a multifractal structure that depends on their decay rate. We show how classical dynamics describes resonance states of all decay rates in the semiclassical limit. This result for chaotic sc
Externí odkaz:
http://arxiv.org/abs/2408.17088
Publikováno v:
New J. Phys. 25 123034 (2023)
For the paradigmatic three-disk scattering system, we confirm a recent conjecture for open chaotic systems, which claims that resonance states are composed of two factors. In particular, we demonstrate that one factor is given by universal exponentia
Externí odkaz:
http://arxiv.org/abs/2308.12783
Publikováno v:
Phys. Rev. Lett. 131, 187201 (2023)
We demonstrate that quantum dynamical localization in the Arnold web of higher-dimensional Hamiltonian systems is destroyed by an intrinsic classical drift. Thus quantum wave packets and eigenstates may explore more of the intricate Arnold web than p
Externí odkaz:
http://arxiv.org/abs/2307.06717
Autor:
Sharma, Chithra H., Prada, Marta, Schmidt, Jan-Hendrik, D'iaz-Palacio, Isabel Gonz'alez, Stauber, Tobias, Taniguchi, Takashi, Watanabe, Kenji, Tiemann, Lars, Blick, Robert H.
The physics of moir'e superlattices and the resulting formation of mini-bands in van der Waals materials have opened up an exciting new field in condensed matter physics. These systems exhibit a rich phase diagram of novel physical phenomena and exot
Externí odkaz:
http://arxiv.org/abs/2304.03316
Resonance states of the 3-disk scattering system are presented for the first Casati wave number $k \approx 912$ and the second Casati wave number $k \approx 91242$. They show multifractal structure in phase space, similar to the pioneering work by Ca
Externí odkaz:
http://arxiv.org/abs/2212.04787
Autor:
Meyer, Tobias, Ehrlich, David A., Pichler, Peter, Titova, Valeriya, Flathmann, Christoph, Schmidt, Jan, Seibt, Michael
The light absorption of [001] grown single-crystalline silicon wafers can be enhanced by chemical etching with potassium hydroxide resulting in a pyramid-like surface texture. Alongside this advantageous property in the context of solar energy conver
Externí odkaz:
http://arxiv.org/abs/2109.00586
Autor:
Schmidt, Jan-Niklas, Hertkorn, Jens, Guo, Mingyang, Böttcher, Fabian, Schmidt, Matthias, Ng, Kevin S. H., Graham, Sean D., Langen, Tim, Zwierlein, Martin, Pfau, Tilman
Publikováno v:
Phys. Rev. Lett. 126, 193002 (2021)
We observe signatures of radial and angular roton excitations around a droplet crystallization transition in dipolar Bose-Einstein condensates. In situ measurements are used to characterize the density fluctuations near this transition. The static st
Externí odkaz:
http://arxiv.org/abs/2102.01461
Autor:
Böttcher, Fabian, Schmidt, Jan-Niklas, Hertkorn, Jens, Ng, Kevin S. H., Graham, Sean D., Guo, Mingyang, Langen, Tim, Pfau, Tilman
Quantum fluctuations can stabilize Bose-Einstein condensates (BEC) against the mean-field collapse. Stabilization of the condensate has been observed in quantum degenerate Bose-Bose mixtures and dipolar BECs. The fine-tuning of the interatomic intera
Externí odkaz:
http://arxiv.org/abs/2007.06391
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