Solitary Waves of a $$\mathcal {P}$$ $$\mathcal {T}$$-Symmetric Nonlinear Dirac Equation
Abstract
In our study we consider we consider a prototypical example of a mathcalP mathcalT-symmetric Dirac model. We discuss the underlying linear limit of the model and identify the threshold of the mathcalP mathcalT -phase transition in an analytical form. We then focus on the examination of the nonlinear model. We consider the continuation in the mathcalP mathcalT -symmetric model of the solutions of the corresponding Hamiltonian model and find that the solutions can be continued robustly as stable ones all the way up to the mathcalP mathcalT-transition threshold. In the latter, they degenerate into linear waves. We also examine the dynamics of the model. Given the stability of the waveforms in the mathcalP mathcalT-exact phase, we consider them as initial conditions for parameters outside of that phase. We also find that both oscillatory dynamics and exponential growth may arise, depending on the size of the corresponding “quench”. The former can be characterized by an interesting form of bifrequency solutions that have been predicted on the basis of the SU symmetry. Finally, we explore some special, analytically tractable, but not mathcalP mathcalT-symmetric solutions in the massless limit of t- e model.
- Authors:
-
- Univ. of Sevilla (Spain)
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Univ. of Massachusetts, Amherst, MA (United States)
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Santa Fe Inst. (SFI), Santa Fe, NM (United States)
- Savitribai Phule Pune Univ. (India)
- Texas A & M Univ., College Station, TX (United States); Russian Academy of Sciences (RAS), Moscow (Russian Federation). Inst. for Information Transmission Problems (IITP)
- Washington Univ., St. Louis, MO (United States)
- Publication Date:
- Research Org.:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1234826
- Report Number(s):
- LA-UR-15-26089
Journal ID: ISSN 1077-260X
- Grant/Contract Number:
- 14-50-00150; IRSES-605096; AC52-06NA25396
- Resource Type:
- Accepted Manuscript
- Journal Name:
- IEEE Journal of Selected Topics in Quantum Electronics
- Additional Journal Information:
- Journal Volume: 22; Journal Issue: 5; Journal ID: ISSN 1077-260X
- Publisher:
- IEEE Lasers and Electro-optics Society
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 97 MATHEMATICS AND COMPUTING; Analytical models; Eigenvalues and eigenfunctions; Mathematical model; Numerical models; Solitons; Stability analysis; Nonlinear dynamical systems; bifurcation; nonlinear differential equations
Citation Formats
Cuevas-Maraver, Jesus, Kevrekidis, Panayotis G., Saxena, Avadh, Cooper, Fred, Khare, Avinash, Comech, Andrew, and Bender, Carl M. Solitary Waves of a $\mathcal {P}$ $\mathcal {T}$-Symmetric Nonlinear Dirac Equation. United States: N. p., 2015.
Web. doi:10.1109/JSTQE.2015.2485607.
Cuevas-Maraver, Jesus, Kevrekidis, Panayotis G., Saxena, Avadh, Cooper, Fred, Khare, Avinash, Comech, Andrew, & Bender, Carl M. Solitary Waves of a $\mathcal {P}$ $\mathcal {T}$-Symmetric Nonlinear Dirac Equation. United States. https://doi.org/10.1109/JSTQE.2015.2485607
Cuevas-Maraver, Jesus, Kevrekidis, Panayotis G., Saxena, Avadh, Cooper, Fred, Khare, Avinash, Comech, Andrew, and Bender, Carl M. Tue .
"Solitary Waves of a $\mathcal {P}$ $\mathcal {T}$-Symmetric Nonlinear Dirac Equation". United States. https://doi.org/10.1109/JSTQE.2015.2485607. https://www.osti.gov/servlets/purl/1234826.
@article{osti_1234826,
title = {Solitary Waves of a $\mathcal {P}$ $\mathcal {T}$-Symmetric Nonlinear Dirac Equation},
author = {Cuevas-Maraver, Jesus and Kevrekidis, Panayotis G. and Saxena, Avadh and Cooper, Fred and Khare, Avinash and Comech, Andrew and Bender, Carl M.},
abstractNote = {In our study we consider we consider a prototypical example of a mathcalP mathcalT-symmetric Dirac model. We discuss the underlying linear limit of the model and identify the threshold of the mathcalP mathcalT -phase transition in an analytical form. We then focus on the examination of the nonlinear model. We consider the continuation in the mathcalP mathcalT -symmetric model of the solutions of the corresponding Hamiltonian model and find that the solutions can be continued robustly as stable ones all the way up to the mathcalP mathcalT-transition threshold. In the latter, they degenerate into linear waves. We also examine the dynamics of the model. Given the stability of the waveforms in the mathcalP mathcalT-exact phase, we consider them as initial conditions for parameters outside of that phase. We also find that both oscillatory dynamics and exponential growth may arise, depending on the size of the corresponding “quench”. The former can be characterized by an interesting form of bifrequency solutions that have been predicted on the basis of the SU symmetry. Finally, we explore some special, analytically tractable, but not mathcalP mathcalT-symmetric solutions in the massless limit of t- e model.},
doi = {10.1109/JSTQE.2015.2485607},
journal = {IEEE Journal of Selected Topics in Quantum Electronics},
number = 5,
volume = 22,
place = {United States},
year = {Tue Oct 06 00:00:00 EDT 2015},
month = {Tue Oct 06 00:00:00 EDT 2015}
}
Web of Science
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