Results 61 to 70 of about 117,223 (220)

Quantum self-induced transparency in frequency gap media [PDF]

open access: yes, 1997
We study quantum effects of light propagation through an extended absorbing system of two-level atoms placed within a frequency gap medium (FGM). Apart from ordinary solitons and single particle impurity band states, the many-particle spectrum of the ...
Ablowitz M. J.   +8 more
core   +2 more sources

Glueball solitons [PDF]

open access: yesPhysical Review D, 1986
From the effective action of long-range Yang-Mills theory, we derive a classical spherical solution which can be interpreted as a glueball. The field configurations in the gauge we have used describe a system with one unit of color-electric flux crossing any median plane, and thus can be regarded as two gluons bound together.
Baker, M.   +3 more
openaire   +3 more sources

Transient Antiskyrmion‐Mediated Topological Transitions in Isotropic Magnets

open access: yesAdvanced Science, EarlyView.
A transient antiskyrmion‐mediated pathway that drives repeated stripe‐to‐skyrmion transitions is revealed, producing a net increase in topological charge in isotropic Dzyaloshinskii–Moriya interaction films. Experiments and simulations identify the antiskyrmion as a metastable excitation, enabling stochastic bitstream generation for probabilistic ...
Bingqian Dai   +18 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

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

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

Multi‐Soliton Microcombs Enable Ultrafast Nanometric‐Precision Ranging and Photon‐Level Detection

open access: yesAdvanced Science, EarlyView.
Our work first demonstrates dual‐multi‐soliton ranging and confirms its multifunctional capability. The method achieves ultrafast and nanometric‐precision measurement. For practical applications, we further extend the multi‐soliton states to photon‐level ranging.
Jiawen Zhi   +10 more
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

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

Multicolor Solitons

open access: yesOptics and Photonics News, 2001
Peer ...
Torner Sabata, Lluís, Stegeman, George
openaire   +3 more sources

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