Zobrazeno 1 - 10
of 106
pro vyhledávání: '"Maucher, F."'
The compensation of chromatic dispersion opened new avenues and extended the level of control upon pattern formation in the \textit{temporal domain}. In this manuscript, we propose the use of a nearly-degenerate laser cavity as a general framework al
Externí odkaz:
http://arxiv.org/abs/2306.11359
Publikováno v:
New Journal of Physics, 21, 013032, 2019
This paper presents intuitive interpretations of tightly focused beams of light by drawing analogies to two-dimensional electrostatics, magnetostatics and fluid dynamics. We use a Helmholtz decomposition of the transverse polarization components in t
Externí odkaz:
http://arxiv.org/abs/1810.01306
Publikováno v:
Phys. Rev. Lett. 120, 163903 (2018)
In this paper we show that it is possible to structure the longitudinal polarization component of light. We illustrate our approach by demonstrating linked and knotted longitudinal vortex lines acquired upon non-paraxially propagating a tightly focus
Externí odkaz:
http://arxiv.org/abs/1801.05668
Publikováno v:
New J. of Phys. 18 (2016) 063016
We study the creation of knotted ultracold matter waves in Bose-Einstein condensates via coherent two-photon Raman transitions with a $\Lambda$ level configuration. The Raman transition allows an indirect transfer of atoms from the internal state $\l
Externí odkaz:
http://arxiv.org/abs/1512.01012
Publikováno v:
Phys. Rev. Lett. 116, 163902 (2016)
We study the propagation of light beams through optical media with competing nonlocal nonlinearities. We demonstrate that the nonlocality of competing focusing and defocusing nonlinearities gives rise to self-organization and stationary states with s
Externí odkaz:
http://arxiv.org/abs/1510.09168
Publikováno v:
New J. Phys. 15, 083055 (2013)
Quasiperiodic oscillations and shape-transformations of higher-order bright solitons in nonlinear nonlocal media have been frequently observed in recent years, however, the origin of these phenomena was never completely elucidated. In this paper, we
Externí odkaz:
http://arxiv.org/abs/1303.3213
Publikováno v:
Phys. Rev. A 85, 063803 (2012)
We consider the interplay between nonlocal nonlinearity and randomness for two different nonlinear Schr\"odinger models. We show that stability of bright solitons in presence of random perturbations increases dramatically with the nonlocality-induced
Externí odkaz:
http://arxiv.org/abs/1202.2074
Publikováno v:
Class. Quantum Grav. 28 155015, 2011
It is known that B\"acklund transformations can be used to generate stationary axisymmetric solutions of Einstein's vacuum field equations with any number of constants. We will use this class of exact solutions to describe the exterior vacuum region
Externí odkaz:
http://arxiv.org/abs/1102.5252
Publikováno v:
Phys. Rev. Lett. 106, 170401 (2011)
We propose a scheme for the creation of stable three dimensional bright solitons in Bose-Einstein condensates, i.e., the matter-wave analog of so-called spatio-temporal "light bullets". Off-resonant dressing to Rydberg $nD$-states is shown to provide
Externí odkaz:
http://arxiv.org/abs/1102.2121
Publikováno v:
Nonlinearity 24, 1987 (2011)
We discuss spatial dynamics and collapse scenarios of localized waves governed by the nonlinear Schr\"{o}dinger equation with nonlocal nonlinearity. Firstly, we prove that for arbitrary nonsingular attractive nonlocal nonlinear interaction in arbitra
Externí odkaz:
http://arxiv.org/abs/1008.1891