Auflistung nach Schlagwort "Solitons"

Sortiert nach: Sortierung: Ergebnisse:

  • Accurate propagation of ultrashort pulses in nonlinear waveguides using propagation models for the analytic signal 
    Melchert, O.; Morgner, Uwe; Roth, B.; Babushkin, I.; Demircan, A. (Bellingham, WA : SPIE - International Society for Optical Engineering, 2018)
    We present a numerical approach for the accurate simulation of the complex propagation dynamics of ultrashort optical pulses in nonlinear waveguides, especially valid for few-cycle pulses. The propagation models are derived ...
  • Dynamics of Dark Solitons in Elongated Bose-Einstein Condensates 
    Muryshev, A.; Shlyapnikov, G.V.; Ertmer, Wolfgang; Sengstock, K.; Lewenstein, M. (American Physical Society, 2002)
    We find two types of moving dark soliton textures in elongated condensates: nonstationary kinks and proper dark solitons. The latter have a flat notch region and we obtain the diagram of their dynamical stability. At finite ...
  • Dynamics of Many-Body Photon Bound States in Chiral Waveguide QED 
    Mahmoodian, Sahand; Calajó, Guiseppe; Chang, Darrick E.; Hammerer, Klemens; Sørensen, Anders S. (College Park, Md. : APS, 2020)
    We theoretically study the few- and many-body dynamics of photons in chiral waveguides. In particular, we examine pulse propagation through an ensemble of N two-level systems chirally coupled to a waveguide. We show that ...
  • The Effect of Chirp on Pulse Compression at a Group Velocity Horizon 
    Babushkin, Ihar; Amiranashvili, Shalva; Bree, Carsten; Morgner, Uwe; Steinmeyer, Günter; Demircan, Ayhan (Piscataway, NJ : Institute of Electrical and Electronics Engineers Inc., 2016)
    Group-velocity matched cross-phase modulation between a fundamental soliton and a dispersive wave packet has been previously suggested for optical switching applications similar to an optical transistor. Moreover, the ...
  • Equivariant reduction of Yang-Mills theory over the fuzzy sphere and the emergent vortices 
    Harland, Derek; Kuerkcueoglu, Seckin (Amsterdam : Elsevier, 2009)
    We consider a U(2) Yang-Mills theory on M x S(F)(2) where M is a Riemannian manifold and S(F)(2) is the fuzzy sphere. Using essentially the representation theory of SU(2) we determine the most general SU(2)equivariant gauge ...
  • Generic off-diagonal solutions and jet deformations in modified and/or higher dimension gravity theories 
    Rajpoot, Subhash; Vacaru, Sergiu I. (Singapur : World Scientific Publishing Co. Pte. Ltd., 2018)
    Let g be a pseudo-Riemanian metric on a manifold V with conventional n+n dimensional splitting, n ≥ 2, for a nonholonomic (non-integrable) distribution N and consider a correspondingly adapted linear metric compatible ...
  • Long wave propagation, shoaling and run-up in nearshore areas 
    Sriram, V.; Didenkulova, I.; Schimmels, Stefan; Sergeeva, A.; Goseberg, Nils (Reston : American Society of Civil Engineers (ASCE), 2014)
    This paper discusses the possibility to study propagation, shoaling and run-up of these waves over a slope in a 300-meter long large wave flume (GWK), Hannover. For this purpose long bell-shaped solitary waves (elongated ...
  • Noncommutative deformation of the Ward metric 
    Goffeng, Magnus; Lechtenfeld, Olaf (Trieste : International School for Advanced Studies, 2011)
    The moduli-space metric in the static non-Abelian charge-two sector of the Moyal-deformed CP1 sigma model in 1+2 dimensions is analyzed. After recalling the commutative results of Ward and Ruback and the ?-regularized ...
  • Noncommutative instantons and solitons 
    Lechtenfeld, Olaf (Trieste : Sissa Medialab Srl, 2003)
    I explain how to construct noncommutative BPS configurations in four and lower dimensions by solving linear matrix equations. Examples are instantons in D=4 Yang-Mills, monopoles in D=3 Yang-Mills-Higgs, and (moving) ...
  • Numerical and experimental study on tsunami run-up and inundation influenced by macro roughness elements 
    Goseberg, Nils; Schlurmann, Torsten (Reston : American Society of Civil Engineers, 2010)
    This research study considers long wave run-up experimentally and numerically. At first, an alternative methodology in long wave physical modeling is presented by means of a set of pipe pumps forcing the inflow of a ...