Zobrazeno 1 - 10
of 146
pro vyhledávání: '"Krüger, Helge"'
Autor:
Spurling, Dahnan, Krüger, Helge, Kohlmann, Niklas, Rasch, Florian, Kremer, Matthias P., Kienle, Lorenz, Adelung, Rainer, Nicolosi, Valeria, Schütt, Fabian
Publikováno v:
In Energy Storage Materials February 2024 65
Publikováno v:
Math. Res. Lett. 27 (2020), no. 3
We prove that the exponential decay rate in expectation is well defined and is equal to the Lyapunov exponent, for supercritical almost Mathieu operators with Diophantine frequencies.
Externí odkaz:
http://arxiv.org/abs/1812.02860
Autor:
Santos-Carballal, David, Lupan, Oleg, Magariu, Nicolae, Ababii, Nicolai, Krüger, Helge, Bodduluri, Mani Teja, de Leeuw, Nora H., Hansen, Sandra, Adelung, Rainer
Publikováno v:
In Nano Energy May 2023 109
Autor:
Lupan, Oleg, Ababii, Nicolai, Mishra, Abhishek Kumar, Bodduluri, Mani Teja, Magariu, Nicolae, Vahl, Alexander, Krüger, Helge, Wagner, Bernhard, Faupel, Franz, Adelung, Rainer, de Leeuw, Nora H., Hansen, Sandra
Publikováno v:
In Sensors and Actuators: A. Physical 1 October 2021 329
Publikováno v:
In Journal of Functional Analysis 1 September 2020 279(4)
Autor:
Krueger, Helge
I prove that quasi-periodic Schr\"odinger operators in arbitrary dimension have some absolutely continuous spectrum.
Externí odkaz:
http://arxiv.org/abs/1306.4395
Autor:
Krueger, Helge
We show that a large class of limit-periodic Schr\"odinger operators has purely absolutely continuous spectrum in arbitrary dimensions. This result was previously known only in dimension one. The proof proceeds through the non-perturbative constructi
Externí odkaz:
http://arxiv.org/abs/1304.2805
Autor:
Jitomirskaya, Svetlana, Krueger, Helge
We prove that the exponential moments of the position operator stay bounded for the supercritical almost Mathieu operator with Diophantine frequency.
Externí odkaz:
http://arxiv.org/abs/1208.2674
Autor:
Krüger, Helge
I give an example of a skew-shift Schr\"odinger operator with positive Lyapunov exponent in the spectrum for all positive coupling constant with constant frequency. This is the first example of this kind. The proof is based on CMV operators given by
Externí odkaz:
http://arxiv.org/abs/1206.1362