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Numerical solution ...
Numerical solution of the stationary multicomponent nonlinear Schrodinger equation with a constraint on the angular momentum
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- Sandin, Patrik, 1980- (författare)
- Örebro universitet,Institutionen för naturvetenskap och teknik
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- Ögren, Magnus, 1977- (författare)
- Örebro universitet,Institutionen för naturvetenskap och teknik
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- Gulliksson, Mårten, 1963- (författare)
- Örebro universitet,Institutionen för naturvetenskap och teknik,Sch Sci & Technol, Univ Örebro, Örebro, Sweden
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(creator_code:org_t)
- American Physical Society, 2016
- 2016
- Engelska.
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Ingår i: Physical Review E. - : American Physical Society. - 2470-0045. ; 93:3
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- We formulate a damped oscillating particle method to solve the stationary nonlinear Schrodinger equation (NLSE). The ground-state solutions are found by a converging damped oscillating evolution equation that can be discretized with symplectic numerical techniques. The method is demonstrated for three different cases: for the single-component NLSE with an attractive self-interaction, for the single-component NLSE with a repulsive self-interaction and a constraint on the angular momentum, and for the two-component NLSE with a constraint on the total angular momentum. We reproduce the so-called yrast curve for the single-component case, described in [A. D. Jackson et al., Europhys. Lett. 95, 30002 (2011)], and produce for the first time an analogous curve for the two-component NLSE. The numerical results are compared with analytic solutions and competing numerical methods. Our method is well suited to handle a large class of equations and can easily be adapted to further constraints and components.
Ämnesord
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Nyckelord
- Physics
- Fysik
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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