Zobrazeno 1 - 10
of 183
pro vyhledávání: '"Plum, Michael"'
L. Boltzmann proposed a billiard model with a planar central force problem reflected against a line not passing through the center. He asserted that such a system is ergodic, which thus illustrates his ergodic hypothesis. However, it has been recentl
Externí odkaz:
http://arxiv.org/abs/2311.09699
Autor:
Pelinovsky, Dmitry E., Plum, Michael
We consider a family of regularized defocusing nonlinear Schrodinger (NLS) equations proposed in the context of the cubic NLS equation with a bounded dispersion relation. The time evolution is well-posed if the black soliton is perturbed by a small p
Externí odkaz:
http://arxiv.org/abs/2304.04823
Autor:
Plum, Michael, Reichel, Wolfgang
We consider localized solutions of variants of the semilinear curl-curl wave equation $s(x) \partial_t^2 U +\nabla\times\nabla\times U + q(x) U \pm V(x) |U|^{p-1} U = 0$ for $(x,t)\in \mathbb{R}^3\times\mathbb{R}$ and arbitrary $p>1$. Depending on th
Externí odkaz:
http://arxiv.org/abs/2212.04723
Autor:
Liao, Xian, Plum, Michael
We characterize the location and number of eigenvalues for the Lax operator associated to the one-dimensional cubic nonlinear defocusing Schr\"odinger equation. With the help of a newly discovered unitary matrix, the analysis reduces to the study of
Externí odkaz:
http://arxiv.org/abs/2207.05186
The paper determines and classifies the spectrum of a non-self-adjoint operator pencil generated by the time-harmonic Maxwell problem with a nonlinear dependence on the frequency for the case of two homogeneous materials joined at a planar interface.
Externí odkaz:
http://arxiv.org/abs/2206.02037
Autor:
Pelinovsky, Dmitry E., Plum, Michael
Black solitons are identical in the nonlinear Schr\"{o}dinger (NLS) equation with intensity-dependent dispersion and the cubic defocusing NLS equation. We prove that the intensity-dependent dispersion introduces new properties in the stability analys
Externí odkaz:
http://arxiv.org/abs/2205.10177
Autor:
Khrabustovskyi, Andrii, Plum, Michael
Let $\varepsilon>0$ be a small parameter. We consider the domain $\Omega_\varepsilon:=\Omega\setminus D_\varepsilon$, where $\Omega$ is an open domain in $\mathbb{R}^n$, and $D_\varepsilon$ is a family of small balls of the radius $d_\varepsilon=o(\v
Externí odkaz:
http://arxiv.org/abs/2106.10216
Publikováno v:
Phys. Rev. B 99, 035442 (2019)
The parameter retrieval is a procedure in which effective material properties are assigned to a given metamaterial. A widely used technique bases on the inversion of reflection and transmission from a metamaterial slab. Thus far, local constitutive r
Externí odkaz:
http://arxiv.org/abs/1808.00748
Autor:
Cousineau, Sarah, Rakhman, Abdurahim, Kay, Martin, Aleksandrov, Alexander, Danilov, Viatcheslav, Gorlov, Timofey, Liu, Yun, Long, Cary, Menshov, Alexander, Plum, Michael, Shishlo, Andrei, Webster, Andrew, Johnson, David
Publikováno v:
Phys.Rev.Accl.Beams 20, 120402 (2017)
Laser-assisted stripping is a novel approach to H- charge exchange that overcomes long-standing limitations associated with the traditional, foil-based method of producing high-intensity, time-structured beams of protons. This paper reports on the fi
Externí odkaz:
http://arxiv.org/abs/1805.04481
Autor:
Feis, Joshua, Mnasri, Karim, Khrabustovskyi, Andrii, Stohrer, Christian, Plum, Michael, Rockstuhl, Carsten
Publikováno v:
Phys. Rev. B 98, 115409 (2018)
Studying basic physical effects sustained in metamaterials characterized by specific constitutive relation is a research topic with a long standing tradition. Besides intellectual curiosity, it derives its importance from the ability to predict obser
Externí odkaz:
http://arxiv.org/abs/1804.06054