Zobrazeno 1 - 10
of 183
pro vyhledávání: '"Gurevich, Svetlana"'
Visual models play a crucial role in both science and science communication. However, the distinction between mere analogies and mathematically sound graphical representations is not easy and can be misunderstood not only by laypeople but also within
Externí odkaz:
http://arxiv.org/abs/2410.22171
We report the existence of localized states in dipolar Bose-Einstein condensates confined to a tubular geometry. We first perform a bifurcation analysis to track their emergence in a one-dimensional domain for numerical feasibility and find that loca
Externí odkaz:
http://arxiv.org/abs/2407.09177
Publikováno v:
Physical Review Applied 22, 024050 (2024)
We study the dynamics of an optoelectronic circuit composed of an excitable nanoscale resonant-tunneling diode (RTD) driving a nanolaser diode (LD) coupled via time-delayed feedback. Using a combination of numerical path-continuation methods and time
Externí odkaz:
http://arxiv.org/abs/2402.00227
We propose a time-delayed model for the study of active mode-locking that is valid for large values of the round-trip gain and losses. It allows us to access the typical regimes encountered in semiconductor lasers and to perform an extended bifurcati
Externí odkaz:
http://arxiv.org/abs/2401.05061
We study theoretically the mechanisms of square wave formation of a vertically emitting micro-cavity operated in the Gires-Tournois regime that contains a Kerr medium and that is subjected to strong time-delayed optical feedback and detuned optical i
Externí odkaz:
http://arxiv.org/abs/2308.12091
In this paper we study the dynamics of a vertically-emitting micro-cavity operated in the Gires-Tournois regime that contains a semiconductor quantum-well and that is subjected to strong time-delayed optical feedback and detuned optical injection. Us
Externí odkaz:
http://arxiv.org/abs/2301.09400
We study theoretically the mechanisms of square-wave (SW) formation in vertical external-cavity Kerr-Gires-Tournois interferometers in presence of anti-resonant injection. We provide simple analytical approximations for their plateau intensities and
Externí odkaz:
http://arxiv.org/abs/2206.09656
Publikováno v:
Chaos 32, 113112 (2022)
To facilitate the analysis of pattern formation and of the related phase transitions in Bose-Einstein condensates (BECs) we present an explicit approximate mapping from the nonlocal Gross-Pitaevskii equation with cubic nonlinearity to a phase field c
Externí odkaz:
http://arxiv.org/abs/2205.15194
Autor:
Frohoff-Hülsmann, Tobias, Holl, Max Philipp, Knobloch, Edgar, Gurevich, Svetlana V., Thiele, Uwe
We demonstrate that several nonvariational continuum models commonly used to describe active matter as well as other active systems exhibit nongeneric behavior: each model supports asymmetric but stationary localized states even in the absence of pin
Externí odkaz:
http://arxiv.org/abs/2205.14364
The development of substrates with a switchable wettability is on a fast pace. The limit of switching frequencies and contact angle differences between substrate states are steadily pushed further. We investigate the behavior of a droplet on a homoge
Externí odkaz:
http://arxiv.org/abs/2203.13719