Zobrazeno 1 - 10
of 318
pro vyhledávání: '"Schober C"'
We investigate a higher order nonlinear Schr\"odinger equation with linear damping and weak viscosity, recently proposed as a model for deep water waves exhibiting frequency downshifting. Through analysis and numerical simulations, we discuss how the
Externí odkaz:
http://arxiv.org/abs/2307.07156
Autor:
Schober, C. M., Islas, A.
The spatially periodic breather solutions (SPBs) of the nonlinear Schr\"odinger equation, prominent in modeling rogue waves, are unstable. In this paper we numerically investigate the effects of nonlinear dissipation and higher order nonlinearities o
Externí odkaz:
http://arxiv.org/abs/2203.13488
Autor:
Waitz, M., Bello, R. Y., Metz, D., Lower, J., Trinter, F., Schober, C., Keiling, M., Lenz, U., Pitzer, M., Mertens, K., Martins, M., Viefhaus, J., Klumpp, S., Weber, T., Schmidt, L. Ph. H., Williams, J. B., Schöffler, M. S., Serov, V. V., Kheifets, A. S., Argenti, L., Palacios, A., Martin, F., Jahnke, T., Dörner, R.
Publikováno v:
Nature Communications 8, Article number: 2266 (2017)
The toolbox for imaging molecules is well-equipped today. Some techniques visualize the geometrical structure, others the electron density or electron orbitals. Molecules are many-body systems for which the correlation between the constituents is dec
Externí odkaz:
http://arxiv.org/abs/1801.03746
Autor:
Waitz, M., Metz, D., Lower, J., Schober, C., Keiling, M., Pitzer, M., Mertens, K., Martins, M., Viefhaus, J., Klumpp, S., Weber, T., Schmidt-Böcking, H., Schmidt, L. Ph. H., Morales, F., Miyabe, S., Rescigno, T. N., McCurdy, C. W., Martin, F., Williams, J. B., Schöffler, M. S., Jahnke, T., Dörner, R.
Publikováno v:
Phys. Rev. Lett. 117, 083002 (2016)
We investigate the photo-doubleionization of $H_2$ molecules with 400 eV photons. We find that the emitted electrons do not show any sign of two-center interference fringes in their angular emission distributions if considered separately. In contrast
Externí odkaz:
http://arxiv.org/abs/1607.07275
Autor:
Zeller, S., Kunitski, M., Voigtsberger, J., Kalinin, A., Schottelius, A., Schober, C., Waitz, M., Sann, H., Hartung, A., Bauer, T., Pitzer, M., Trinter, F., Goihl, C., Janke, C., Richter, M., Kastirke, G., Weller, M., Czasch, A., Kitzler, M., Braune, M., Grisenti, R. E., Schöllkopf, W., Schmidt, L. Ph. H., Schöffer, M., Williams, J. B., Jahnke, T., Dörner, R.
Publikováno v:
PNAS 2016 December, 113 (51) 14651-14655
We report on coulomb explosion imaging of the wavefunction of the quantum halo system He$_2$. Each atom of this system is ionized by tunnelionization in a femto second laser pulse and in a second experiment by single photon ionization employing a fre
Externí odkaz:
http://arxiv.org/abs/1601.03247
Autor:
Burzynski, P., Trinter, F., Williams, J. B., Weller, M., Waitz, M., Pitzer, M., Voigtsberger, J., Schober, C., Kastirke, G., Müller, C., Goihl, C., Wiegandt, F., Wallauer, R., Kalinin, A., Schmidt, L. Ph. H., Schöffler, M., Schiwietz, G., Sisourat, N., Jahnke, T., Dörner, R.
Publikováno v:
Physical Review A 90, 022515 (2014)
We investigate the onset of photoionization shakeup induced interatomic Coulombic decay (ICD) in He2 at the He+*(n = 2) threshold by detecting two He+ ions in coincidence. We find this threshold to be shifted towards higher energies compared to the s
Externí odkaz:
http://arxiv.org/abs/1409.2701
Autor:
Trinter, F., Williams, J. B., Weller, M., Waitz, M., Pitzer, M., Voigtsberger, J., Schober, C., Kastirke, G., Müller, C., Goihl, C., Burzynski, P., Wiegandt, F., Wallauer, R., Kalinin, A., Schmidt, L. Ph. H., Schöffler, M. S., Chiang, Y. -C., Gokhberg, K., Jahnke, T., Dörner, R.
Publikováno v:
Phys. Rev. Lett. 111, 233004 (2013)
We investigate the ionization of HeNe from below the He 1s3p excitation to the He ionization threshold. We observe HeNe$^+$ ions with an enhancement by more than a factor of 60 when the He side couples resonantly to the radiation field. These ions ar
Externí odkaz:
http://arxiv.org/abs/1310.6538
Autor:
Trinter, F., Williams, J. B., Weller, M., Waitz, M., Pitzer, M., Voigtsberger, J., Schober, C., Kastirke, G., Müller, C., Goihl, C., Burzynski, P., Wiegandt, F., Bauer, T., Wallauer, R., Sann, H., Kalinin, A., Schmidt, L. Ph. H., Schöffler, M., Sisourat, N., Jahnke, T.
During the last 15 years a novel decay mechanism of excited atoms has been discovered and investigated. This so called ''Interatomic Coulombic Decay'' (ICD) involves the chemical environment of the electronically excited atom: the excitation energy i
Externí odkaz:
http://arxiv.org/abs/1305.1464
Autor:
Karpeev, D., Schober, C. M.
In this paper we develop the Lagrangian and multisymplectic structures of the Heisenberg magnet (HM) model which are then used as the basis for geometric discretizations of HM. Despite a topological obstruction to the existence of a global Lagrangian
Externí odkaz:
http://arxiv.org/abs/physics/0412082
Publikováno v:
Studies in Applied Mathematics; Feb2024, Vol. 152 Issue 2, p513-542, 30p
