Results 61 to 70 of about 117,386 (210)

Advancing Energy Materials by In Situ Atomic Scale Methods

open access: yesAdvanced Energy Materials, Volume 15, Issue 11, March 18, 2025.
Progress in in situ atomic scale methods leads to an improved understanding of new and advanced energy materials, where a local understanding of complex, inhomogeneous systems or interfaces down to the atomic scale and quantum level is required. Topics from photovoltaics, dissipation losses, phase transitions, and chemical energy conversion are ...
Christian Jooss   +21 more
wiley   +1 more source

New optical solitons of perturbed nonlinear Schrödinger–Hirota equation with spatio-temporal dispersion

open access: yesResults in Physics, 2021
The perturbed nonlinear Schrödinger–Hirota equation with spatio-temporal dispersion (PNSHE-STD) which governs the propagation of dispersive pulses in optical fibers, is investigated in this study using an improved Sardar sub-equation method. The Kerr and
Lanre Akinyemi   +7 more
doaj   +1 more source

Two-dimensional bright and dark-in-bright dipolar Bose-Einstein condensate solitons on a one-dimensional optical lattice

open access: yes, 2016
We study the statics and dynamics of anisotropic, stable, bright and dark-in-bright dipolar quasi-two-dimensional Bose-Einstein condensate (BEC) solitons on a one-dimensional (1D) optical-lattice (OL) potential.
Adhikari, S K
core   +2 more sources

Gap solitons in the spin-orbit coupled Bose-Einstein condensates [PDF]

open access: yes, 2013
We report a diversity of stable gap solitons in a spin-orbit coupled Bose-Einstein condensate subject to a spatially periodic Zeeman field. It is shown that the solitons, can be classified by the main physical symmetries they obey, i.e.
Abdullaev, Fatkhulla Kh.   +2 more
core   +3 more sources

KNOT SOLITONS [PDF]

open access: yesModern Physics Letters A, 1998
The existence of ring-like and knotted solitons in O(3) nonlinear σ-model is analyzed. The role of isotopy of knots/links in classifying such solitons is pointed out. Appearance of torus knot solitons is seen.
openaire   +2 more sources

Self‐Similar Blowup for the Cubic Schrödinger Equation

open access: yesCommunications on Pure and Applied Mathematics, EarlyView.
ABSTRACT We give a rigorous proof for the existence of a finite‐energy, self‐similar solution to the focusing cubic Schrödinger equation in three spatial dimensions. The proof is computer‐assisted and relies on a fixed point argument that shows the existence of a solution in the vicinity of a numerically constructed approximation.
Roland Donninger, Birgit Schörkhuber
wiley   +1 more source

Oscillatory soliton pairs in spin-orbit coupled spin-1/2 Bose–Einstein condensates

open access: yesNew Journal of Physics
We investigate oscillatory soliton pairs including the bright–bright solitons, dark–dark solitons, bright–dark solitons and beating solitons (beating soliton refers to a type of soliton characterized by components that are each composed of both bright ...
Fei-Yan Liu, Qin Zhou
doaj   +1 more source

Real‐Time Observation of the Formation of Dual‐Wavelength Mode Locking

open access: yesAdvanced Photonics Research, 2022
Dual‐wavelength mode‐locking lasers delivering asynchronous dual‐color solitons are excellent sources for dual‐comb spectroscopies. Up to now, diverse approaches have been developed to implement dual‐wavelength lasers.
Zhengru Guo, Tingting Liu, Heping Zeng
doaj   +1 more source

Nondegenerate Bright Solitons in Coupled Nonlinear Schrödinger Systems: Recent Developments on Optical Vector Solitons

open access: yesPhotonics, 2021
Nonlinear dynamics of an optical pulse or a beam continue to be one of the active areas of research in the field of optical solitons. Especially, in multi-mode fibers or fiber arrays and photorefractive materials, the vector solitons display rich ...
S. Stalin   +2 more
doaj   +1 more source

Solitons and vortices in ultracold fermionic gases

open access: yes, 2001
We investigate the possibilities of generation of solitons and vortices in a degenerate gas of neutral fermionic atoms. In analogy with, already experimentally demonstrated, technique applied to gaseous Bose-Einstein condensate we propose the phase ...
Dobrek Let al   +3 more
core   +1 more source

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