
We consider in this paper the stochastic nonlinear Schrödinger equation forced by multiplicative noise in the Itô sense. We use two different methods as sine-cosine method and Riccati-Bernoulli sub-ODE method to obtain new rational, trigonometric and hyperbolic stochastic solutions. These stochastic solutions are of a qualitatively distinct nature based on the parameters. Moreover, the effect of the multiplicative noise on the solutions of nonlinear Schrödinger equation will be discussed. Finally, two and three-dimensional graphs for some solutions have been given to support our analysis.
Citation: Mahmoud A. E. Abdelrahman, Wael W. Mohammed, Meshari Alesemi, Sahar Albosaily. The effect of multiplicative noise on the exact solutions of nonlinear Schrödinger equation[J]. AIMS Mathematics, 2021, 6(3): 2970-2980. doi: 10.3934/math.2021180
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We consider in this paper the stochastic nonlinear Schrödinger equation forced by multiplicative noise in the Itô sense. We use two different methods as sine-cosine method and Riccati-Bernoulli sub-ODE method to obtain new rational, trigonometric and hyperbolic stochastic solutions. These stochastic solutions are of a qualitatively distinct nature based on the parameters. Moreover, the effect of the multiplicative noise on the solutions of nonlinear Schrödinger equation will be discussed. Finally, two and three-dimensional graphs for some solutions have been given to support our analysis.
Nonlinear complex phenomena arising in various fields of applied science such as fluid mechanics, chemical physics, solid state physics, plasma physics, biology, optics and geochemistry can be modelled into various nonlinear partial differential equations (NLPDEs) [1,2,3,4,5,6,7,8,9]. Recently, studying the nature of these models has attracted the attentions of many researches [10,11,12,13,14,15,16,17,18,19,20,21]. The nonlinear Schrödinger equation (NLS, for short) is one of the fundamental models of nonlinear waves. It has many applications for example in the theory of solids [22] and crystals [23], in laser beams [24] and in electromechanical systems [25].
Using stochastic processes in Schrödinger equations, thermal fluctuations or spontaneous emissions or general random disturbances can be modelled. Many authors studied the existence and uniqueness of the solution of stochastic Schrödinger equation with additive or multiplicative noise. The multiplicative noise case is investigated in [26,27,28,29,30], while the additive noise case is discussed in [31,32]. For both cases are studied in [33,34]. While, other authors are interested with numerical approximations of the solutions via effective schemes of stochastic Schr ödinger equation for example [35,36,37].
In this article, we consider the following stochastic nonlinear Schrö dinger equation with multiplicative noise in the Itô sense:
iut−uxx+2|u|2u−2ρ2u+σuβt=0, for t≥0 and x∈R, | (1.1) |
where u(t,x) is a complex-valued process, ρ and σ are constants, and βt=dβdt is the time derivative of Browian motion β(t). In this paper we consider the one-dimensional noise, because on one hand, this is the case where we are able to obtain the exact solutions. On the other hand, infinite-dimensional noise may lead to spatially unbounded solutions of Eq (1.1). At this point, it is convenient to provide a definition of β(t). Brownian motion (also called one-dimensional Wiener process) is a stochastic process {β(t)}t≥0 with the following properties: (i) β(0)=0, (ii) β has continuous trajectories, (iii) The process {β(t)}t≥0 has stationary, independent increments, (iv) For s<t the stochastic variable β(t)−β(s) has the normal distribution N(0;t−s). The multiplicative noise in Eq (1.1) describes a process where the phase of the excitation is disturbed. In crystals, this type of noise corresponds to scattering of exciton by phonons due to thermal molecular vibrations.
In the current work, the Riccati-Bernoulli sub-ODE technique [38] and sine-cosine method are employed to obtain new solutions in different form of stochastic Schrödinger Eq (1.1). Moreover, we discuss the effect of multiplicative noise on these solutions. To the best of our knowledge, this article is the first one for finding the exact solutions for the stochastic Schrödinger Eq (1.1).
Our aim in the current work is to derive the exact solutions of stochastic nonlinear Schrödinger Eq (1.1) forced by a one- dimensional multiplicative white noise in the Itô sense by two various methods such as the Riccati-Bernoulli sub-ODE technique [38] and sine-cosine method. To the best of our knowledge, this article is the first one for finding the exact solutions for the stochastic Schrödinger Eq (1.1). Moreover, we discuss the effect of multiplicative noise on these solutions. The obtained solutions will be extremely helpful in future for further studies such as the improvement of biomedical, coastal water motions, industrial studies, quasi particle theory, space plasma and fiber applications.
This article is divided into the following sections. In the next section, we will obtain the stochastic exact solutions of stochastic nonlinear Schrödinger Eq (1.1) by using two different methods, while in section 3 we show the effect of multiplicative noise on the exact solution of nonlinear Schrödinger Eq (1.1). Finally, we introduce the conclusions of this paper.
In this section we will get the exact solutions of stochastic nonlinear Schr ödinger Eq (1.1). Let us first use the following wave transformation
u(t,x)=ϰ(η)eiθ, η=k(x+2αt), θ=αx+υt+σβ(t), | (2.1) |
where α is the speed of the wave solution ϰ(η), σ is the noise strength, k is a positive constant. By using (2.1) and
∂u∂t=(2αkϰ′+iυϰ+iσβt)eiθ,∂2u∂x2=(k2ϰ′′+2iαkϰ′−α2ϰ)eiθ, |
one can convert Eq (1.1) into the following ODE:
−k2ϰ′′+2ϰ3+Aϰ=0, | (2.2) |
where
A=(α2−2ρ2−ν). |
In the following we apply two methods as the Riccati-Bernoulli sub-ODE method and sine-cosine method to obtain the solitary wave solution of Eq (2.2). And we, therefore, have stochastic exact solution of NLSE (1.1).
Consider the following Riccati-Bernoulli equation
ϰ′=a1ϰ2−m+a2ϰ+a3ϰm, | (2.3) |
where a1,a2,a3 and m are constants and ϰ=ϰ(η).
Differentiating the Riccati-Bernoulli Eq (2.3) one time with respect to η, we obtain
ϰ′′=a1a2(3−m)ϰ2−m+a21(2−m)ϰ3−2m |
+ma23ϰ2m−1+a2a3(m+1)ϰm+(2a1a3+a22)ϰ. | (2.4) |
By substituting (2.4) into (2.2), we have
−k2a1a2(3−m)ϰ2−m−k2a21(2−m)ϰ3−2m−mk2a23ϰ2m−1−a2a3k2(m+1)ϰm |
+2ϰ3+(−2a1a3k2−a22k2+A)ϰ=0. | (2.5) |
If we put m=0, then Eq (2.5) will be become
(2−2a21k2)ϰ3−3a1a2k2ϰ2+(A−2a1a3k2−a22k2)ϰ−a2a3k2=0. | (2.6) |
Equating each coefficient of ϰi(i=0,1,2,3) to zero, we obtain the following algebraic equations
a2a3k2=0, |
A−2a1a3k2−a22k2=0, |
3a1a2k2=0, |
2−2a21k2=0. |
Solving the above equations, yields
a1=±1k, |
a2=0, |
and
a3=±12kA. |
Now, let us deduce the exact solutions of stochastic nonlinear Schrödinger Eq (1.1):
First case: If m≠1 and A=(α2−2ρ2−ν)=0, then the solution of (2.3) in this case takes the form
ϰ(η)=(a1(m−1)(η+C))1m−1. | (2.7) |
Consequently, the exact solution of (1.1) is
u(t,x)=ϰ(η)ei[αx+υt+σβ(t)]=[±(m−1)(x+2αt+C)]1m−1ei[αx+υt+σβ(t)], | (2.8) |
where C is the integration constant. Second case: If m≠1 and A=(α2−2ρ2−ν)>0, then the solution of (2.3) in this case takes the form
ϰ(η)=(±√A2tan((1−m)(x+2αt+C)√A2))11−m, | (2.9) |
and
ϰ(η)=(∓√A2cot((1−m)(x+2αt+C)√A2))11−m. | (2.10) |
Therefore, then the exact solution of (1.1) is
u(t,x)=ϰ(η)ei[αx+υt+σβ(t)]=ei[αx+υt+σβ(t)](±√A2tan((1−m)(x+2αt+C)√A2))11−m, | (2.11) |
and
u(t,x)=ϰ(η)ei[αx+υt+σβ(t)]=ei[αx+υt+σβ(t)](∓√A2cot((1−m)(x+2αt+C)√A2))11−m. | (2.12) |
Third case: If m≠1 and A=(α2−2ρ2−ν)<0, then the solution of (2.3) in this case takes the form
ϰ(η)=(∓√−A2tanh((1−m)(x+2αt+C)√−A2))11−m, | (2.13) |
and
ϰ(η)=(∓√−A2coth((1−m)(x+2αt+C)√−A2))11−m. | (2.14) |
Consequently, then the exact solution of (1.1) is
u(t,x)=ϰ(η)ei[αx+υt+σβ(t)]=ei[αx+υt+σβ(t)](∓√−A2tanh((1−m)(x+2αt+C)√−A2))11−m, | (2.15) |
and
u(t,x)=ϰ(η)ei[αx+υt+σβ(t)]=ei[αx+υt+σβ(t)](∓√−A2coth((1−m)(x+2αt+C)√−A2))11−m. | (2.16) |
While in this section we use the sine-cosine method [39,40,41]. Let the solution u take the form
ϰ(η)=aYm, | (2.17) |
where
Y=sin(bη)or Y=cos(bη). | (2.18) |
Substituting Eq (2.17) into Eq (2.2) we have
−ab2k2[−m2Ym+m(m−1)Ym−2]+2a3Y3m+aAYm=0. |
Rewriting the above equation
(aA+ab2k2m2)Ym−m(m−1)ab2k2Ym−2+2a3Y3m=0. | (2.19) |
Balancing the term of Y in Eq (2.19), we get
m−2=3m ⟹ m=−1. | (2.20) |
Substituting Eq (2.20) into Eq (2.19)
(aA+ab2k2)Y−1+(2a3−2ab2k2)Y−3=0. | (2.21) |
Equating each coefficient of Y−1 and Y−3 to zero, we obtain
aA+ab2k2=0, | (2.22) |
and
2a3−2ab2k2=0. | (2.23) |
We obtain by solving Eq (2.22) and Eq (2.23)
a=±√−A and b=±1k√−A |
There are two cases:
First case: If A=(α2−2ρ2−ν)<0, then in this case the solitary wave solution of Eq (2.2) takes the form
ϰ1,1(ξ)=±√−A[sin(1k√−Aξ)]−1=±√−Acsc(1k√−Aξ), |
or
ϰ1,2(ξ)=±√−Asec(1k√−Aξ). |
Therefore, the stochastic exact solutions of NLSE (1.1) is
u1,1(t,x)=±ei[αx+υt+σβ(t)]√−Acsc[1k√−A(x+2αt)], | (2.24) |
and
u1,2(t,x)=±ei[αx+υt+σβ(t)]√−Asec[1k√−A(x+2αt)]. | (2.25) |
Second case: If A>0, then in this case the solitary wave solutions of Eq (2.2) takes the form
ϰ2,1(ξ)=±i√A[sin(ik√Aξ)]−1=±i√A[sinh(1k√Aξ)]−1=±i√Acsch(1k√Aξ), |
or
ϰ2,2(ξ)=±i√A[cosh(1k√Aξ)]−1=±i√Asech(1k√Aξ). |
Therefore, the stochastic exact solutions of NLSE (1.1) are
u2,1(t,x)=±ei[αx+υt+σβ(t)]√Acsch[1k√A(x+2αt)], | (2.26) |
and
u2,2(t,x)=±ei[αx+υt+σβ(t)]√Asech[1k√A(x+2αt)]. | (2.27) |
Substantially, it has been reported that the exact solutions of the nonlinear Schrödinger Eq (1.1) were gained in the explicit form, using sine-cosine and Riccati-Bernoulli sub-ODE methods. The difference between them is that they give different types of solutions. These solutions describe different phenomena in physics and applied science. The main advantages for these two methods over the most other methods is that they give various vital solutions with additional free parameters. Moreover, these methods are simple, sturdy and efficient. Indeed these two methods can be used to solve other models arising in physics.
In this section we show the effect of multiplicative noise on the solution of Schrödinger Eq (1.1). In the following we introduce some graphical simulations for the fixed parameters α=1.3, k=1.3; p=1.4, μ=2, ν=2.4 and varying noise strength σ. The graphical simulations carried out with MATLAB package.
We see that the solution of NLSE (1.1) fluctuates and has a pattern if σ=0 in the Figure 1. In Figures 2–4, we see that the pattern begins to destroy if the noise intensity σ increases. Finally, in Figure 5 we give 2-D graph of the solution of NLSE (1.1) with different values of the noise intensity σ.
In this article we introduced a rich variety of families of wave solutions, to stochastic nonlinear Schrödinger equation with multiplicative noise in the Itô sense. These solutions are of significant importance in the explaining of some interesting complex physical phenomena. The proposed method is easy, concise, direct and effect tools that give interesting results. The obtained solutions will be extremely helpful in future for further studies such as the improvement of biomedical, coastal water motions, quasi particle theory, industrial studies, space plasma and fiber applications. Finally, we illustrated the effect of multiplicative noise on the solitary wave solution of Schördinger equation.
The authors thank the editor and anonymous reviewers for their valuable comments and suggestions.
The authors declare no conflict of interest.
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3. | Elsayed M.E. Zayed, Reham M.A. Shohib, Mohamed E.M. Alngar, Dispersive optical solitons in birefringent fibers for stochastic Schrödinger–Hirota equation with parabolic law nonlinearity and spatiotemporal dispersion having multiplicative white noise, 2023, 278, 00304026, 170736, 10.1016/j.ijleo.2023.170736 | |
4. | Aydin Secer, Stochastic optical solitons with multiplicative white noise via Itô calculus, 2022, 268, 00304026, 169831, 10.1016/j.ijleo.2022.169831 | |
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6. | Elsayed M.E. Zayed, Reham M.A. Shohib, Mohamed E.M. Alngar, Optical solitons in birefringent fibers with Biswas-Arshed equation having multiplicative noise via Itô calculus using two integration algorithms, 2022, 262, 00304026, 169322, 10.1016/j.ijleo.2022.169322 | |
7. | Elsayed M.E. Zayed, Mohamed E.M. Alngar, Reham M.A. Shohib, Anjan Biswas, Yakup Yıldırım, Ali S. Alshomrani, Hashim M. Alshehri, Optical solitons having Kudryashov’s self-phase modulation with multiplicative white noise via Itô Calculus using new mapping approach, 2022, 264, 00304026, 169369, 10.1016/j.ijleo.2022.169369 | |
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9. | Yilin Tian, Jifeng Cui, Ruigang Zhang, Exact traveling wave solutions of the strain wave and (1 + 1)-dimensional Benjamin–Bona–Mahony equations via the simplest equation method, 2022, 36, 0217-9849, 10.1142/S0217984922501032 | |
10. | Elsayed M.E. Zayed, Mohamed E.M. Alngar, Reham M.A. Shohib, Cubic-quartic embedded solitons with χ(2) and χ(3) nonlinear susceptibilities having multiplicative white noise via Itô calculus, 2023, 168, 09600779, 113186, 10.1016/j.chaos.2023.113186 | |
11. | Elsayed M.E. Zayed, Reham M.A. Shohib, Mohamed E.M. Alngar, Anjan Biswas, Yakup Yıldırım, Ali S. Alshomrani, Hashim M. Alshehri, Optical solitons with Manakov equation having multiplicative white noise by Itô Calculus, 2022, 262, 00304026, 169233, 10.1016/j.ijleo.2022.169233 | |
12. | Elsayed M. E. Zayed, Mohamed E. M. Alngar, Reham M. A. Shohib, Anjan Biswas, Yakup Yıldırım, Houria Triki, Seithuti P. Moshokoa, Hashim M. Alshehri, Optical solitons in birefringent fibers with Sasa–Satsuma equation having multiplicative noise with Itô calculus, 2023, 32, 0218-8635, 10.1142/S0218863523500066 | |
13. | Elsayed M.E. Zayed, Mahmoud El-Horbaty, Mohamed E.M. Alngar, Mona El-Shater, Optical solitons in polarization preserving fibers for perturbed resonant NLSE with Kerr law nonlinearity and Bohm potential having multiplicative white noise via Itô calculus, 2022, 261, 00304026, 169228, 10.1016/j.ijleo.2022.169228 | |
14. | Elsayed M.E. Zayed, Mohamed E.M. Alngar, Reham M.A. Shohib, Optical solitons in magneto-optic waveguides for perturbed NLSE with Kerr law nonlinearity and spatio-temporal dispersion having multiplicative noise via Itô calculus, 2023, 276, 00304026, 170682, 10.1016/j.ijleo.2023.170682 | |
15. | Elsayed M.E. Zayed, Reham M.A. Shohib, Mohamed E.M. Alngar, Khaled A. Gepreel, Taher A. Nofal, Yakup Yıldırım, Optical solitons for Biswas–Arshed equation with multiplicative noise via Itô calculus using three integration algorithms, 2022, 258, 00304026, 168847, 10.1016/j.ijleo.2022.168847 | |
16. | Elsayed M. E. Zayed, Mahmoud El-Horbaty, Mohamed E. M. Alngar, Mona El-Shater, Dispersive Optical Solitons for Stochastic Fokas-Lenells Equation With Multiplicative White Noise, 2022, 3, 2673-4117, 523, 10.3390/eng3040037 | |
17. | Elsayed M.E. Zayed, Reham M.A. Shohib, Mohamed E.M. Alngar, Dispersive optical solitons with Biswas–Milovic equation having dual-power law nonlinearity and multiplicative white noise via Itô calculus, 2022, 270, 00304026, 169951, 10.1016/j.ijleo.2022.169951 | |
18. | Elsayed M. E. Zayed, Mohamed E. M. Alngar, Reham M. A. Shohib, Dispersive Optical Solitons to Stochastic Resonant NLSE with Both Spatio-Temporal and Inter-Modal Dispersions Having Multiplicative White Noise, 2022, 10, 2227-7390, 3197, 10.3390/math10173197 | |
19. | E M E Zayed, R M A Shohib, M E M Alngar, A Biswas, Yakup Yildirim, A Dakova, H M Alshehri, M R Belic, Optical solitons in the Sasa�Satsuma model with multiplicative noise via Ito calculus, 2022, 23, 1609-1833, 9, 10.3116/16091833/23/1/9/2022 | |
20. | Elsayed M.E. Zayed, Mohamed E.M. Alngar, Reham M.A. Shohib, Dispersive optical solitons in magneto-optic waveguides for perturbed stochastic NLSE with generalized anti-cubic law nonlinearity and spatio-temporal dispersion having multiplicative white noise, 2022, 271, 00304026, 170131, 10.1016/j.ijleo.2022.170131 | |
21. | Elsayed M. E. Zayed, Mohamed E. M. Alngar, Reham M. A. Shohib, Anjan Biswas, Yakup Yıldırım, Luminita Moraru, Simona Moldovanu, Puiu Lucian Georgescu, Dispersive Optical Solitons with Differential Group Delay Having Multiplicative White Noise by Itô Calculus, 2023, 12, 2079-9292, 634, 10.3390/electronics12030634 | |
22. | Elsayed M.E. Zayed, Reham M.A. Shohib, Mohamed E.M. Alngar, Anjan Biswas, Yakup Yıldırım, Ali S. Alshomrani, Hashim M. Alshehri, Optical solitons with generalized anti–cubic nonlinearity having multiplicative white noise by Itô Calculus, 2022, 262, 00304026, 169262, 10.1016/j.ijleo.2022.169262 | |
23. | Elsayed M.E. Zayed, Mohamed E.M. Alngar, Reham M.A. Shohib, Anjan Biswas, Yakup Yıldırım, Luminita Moraru, Elena Mereuta, Hashim M. Alshehri, Embedded solitons with χ(2) and χ(3) nonlinear susceptibilities having multiplicative white noise via Itô Calculus, 2022, 162, 09600779, 112494, 10.1016/j.chaos.2022.112494 | |
24. | Souleymanou Abbagari, Pélérine Tsogni Nyawo, Alphonse Houwe, Mustafa Inc, Brownian motion effects on W-shaped soliton and modulation instability gain of the (2+1)-dimensional nonlinear schrödinger equation, 2022, 54, 0306-8919, 10.1007/s11082-021-03377-x | |
25. | Elsayed M.E. Zayed, Mohamed E.M. Alngar, Reham M.A. Shohib, Khaled A. Gepreel, Taher A. Nofal, Optical solitons with (2+1)-dimensional nonlinear Schrödinger equation having spatio-temporal dispersion and multiplicative white noise via Itô calculus, 2022, 261, 00304026, 169204, 10.1016/j.ijleo.2022.169204 | |
26. | Elsayed M.E. Zayed, Reham M.A. Shohib, Mohamed E.M. Alngar, Dispersive optical solitons in birefringent fibers for (2+1)-dimensional NLSE with Kerr law nonlinearity and spatio-temporal dispersion having multiplicative white noise via Itô calculus, 2022, 267, 00304026, 169667, 10.1016/j.ijleo.2022.169667 | |
27. | Wael W. Mohammed, Hijaz Ahmad, Hamid Boulares, Fathi Khelifi, Mahmoud El-Morshedy, Exact solutions of Hirota–Maccari system forced by multiplicative noise in the Itô sense, 2022, 41, 1461-3484, 74, 10.1177/14613484211028100 | |
28. | Elsayed M. E. Zayed, Mohamed E. M. Alngar, Reham M. A. Shohib, Anjan Biswas, Yakup Yildirim, Luminita Moraru, Elena Mereuta, Hashim M. Alshehri, Embedded Solitons with Χ⁽²⁾ and Χ⁽³⁾ Nonlinear Susceptibilities Having Multiplicative White Noise Via Itô Calculus, 2022, 1556-5068, 10.2139/ssrn.4137060 | |
29. | Elsayed M. E. Zayed, Mohamed E. M. Alngar, Reham M. A. Shohib, Anjan Biswas, Yakup Yıldırım, Asim Asiri, Highly dispersive optical solitons in birefringent fibers with Lakshmanan–Porsezian–Daniel model having multiplicative white noise, 2023, 111, 0924-090X, 20237, 10.1007/s11071-023-08935-4 | |
30. | Salman A. AlQahtani, Reham M. A. Shohib, Mohamed E. M. Alngar, Abdulaziz M. Alawwad, High-stochastic solitons for the eighth-order NLSE through Itô calculus and STD with higher polynomial nonlinearity and multiplicative white noise, 2023, 55, 0306-8919, 10.1007/s11082-023-05478-1 | |
31. | Elsayed M. E. Zayed, Khaled A. E. Alurrfi, Mona El–Shater, Anjan Biswas, Yakup Yildirim, Bharat S. Rawal, Ali Saleh Alshomrani, Optical dromions with polarization–mode dispersion having parabolic law of self–phase modulation with multiplicative white noise, 2024, 0972-8821, 10.1007/s12596-024-01888-w | |
32. | Salman A. AlQahtani, Reham M. A. Shohib, Mohamed E. M. Alngar, Abdulaziz M. Alawwad, The $$\Phi ^{6}$$-model expansion approach for solving the (2+1)-dimensional NLSE with Kerr law nonlinearity and STD with multiplicative white noise in birefringent fibers, 2024, 56, 0306-8919, 10.1007/s11082-023-06055-2 | |
33. | Asma Rashid Butt, Muhammad Umair, Ghada Ali Basendwah, Exploring advanced non-linear effects on highly dispersive optical solitons with multiplicative white noise, 2024, 308, 00304026, 171801, 10.1016/j.ijleo.2024.171801 | |
34. | Pinar Albayrak, Muslum Ozisik, Aydin Secer, Mustafa Bayram, Sebahat Ebru Das, Optical solitons of stochastic perturbed Radhakrishnan–Kundu–Lakshmanan model with Kerr law of self-phase-modulation, 2024, 38, 0217-9849, 10.1142/S0217984924501227 | |
35. | Wafaa B. Rabie, Hisham H. Hussein, Hamdy M. Ahmed, Mahmoud Alnahhass, Wassim Alexan, Abundant solitons for highly dispersive nonlinear Schrödinger equation with sextic-power law refractive index using modified extended direct algebraic method, 2024, 86, 11100168, 680, 10.1016/j.aej.2023.12.022 | |
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37. | Muslum Ozisik, Aydin Secer, Mustafa Bayram, Retrieval of optical soliton solutions of stochastic perturbed Schrödinger-Hirota equation with Kerr law in the presence of spatio-temporal dispersion, 2024, 56, 0306-8919, 10.1007/s11082-023-05652-5 | |
38. | Hina Zulfiqar, Aqsa Aashiq, Kalim U. Tariq, Hijaz Ahmad, Bandar Almohsen, Muhammad Aslam, Hamood Ur Rehman, On the solitonic wave structures and stability analysis of the stochastic nonlinear Schrödinger equation with the impact of multiplicative noise, 2023, 289, 00304026, 171250, 10.1016/j.ijleo.2023.171250 | |
39. | Yi Wei, The Riccati-Bernoulli subsidiary ordinary differential equation method to the coupled Higgs field equation, 2023, 31, 2688-1594, 6790, 10.3934/era.2023342 | |
40. | Elsayed M. E. Zayed, Reham M. A. Shohib, Mohamed E. M. Alngar, Anjan Biswas, Yakup Yıldırım, Asim Asiri, Optical solitons with DWDM topology having parabolic law nonlinearity with multiplicative white noise, 2024, 53, 0972-8821, 2322, 10.1007/s12596-023-01370-z | |
41. | Wafaa B. Rabie, Hamdy M. Ahmed, Ali Akgül, Derivation of optical solitons for perturbed highly dispersive conformable fractional nonlinear Schrödinger equation with sextic-power law refractive index, 2024, 56, 1572-817X, 10.1007/s11082-024-06725-9 | |
42. | Elsayed M. E. Zayed, Mahmoud El-Horbaty, Basel M. M. Saad, Ahmed H. Arnous, Yakup Yildirim, Novel solitary wave solutions for stochastic nonlinear reaction–diffusion equation with multiplicative noise, 2024, 112, 0924-090X, 20199, 10.1007/s11071-024-10085-0 | |
43. | Nafissa T. Trouba, Mohamed E.M. Alngar, Haitham A. Mahmoud, Reham M.A. Shohib, Optical soliton solutions of the stochastic resonant nonlinear Schrödinger equation with spatio temporal and inter-modal dispersion under generalized Kudryashov's law non-linearity, 2024, 20904479, 103117, 10.1016/j.asej.2024.103117 | |
44. | Salman A. AlQahtani, Mohamed E.M. Alngar, Reham M.A. Shohib, Pranavkumar Pathak, Highly dispersive embedded solitons with quadratic χ(2) and cubic χ(3) non-linear susceptibilities having multiplicative white noise via Itô calculus, 2023, 171, 09600779, 113498, 10.1016/j.chaos.2023.113498 | |
45. | M. Mossa Al-Sawalha, Saima Noor, Mohammad Alqudah, Musaad S. Aldhabani, Rasool Shah, Formation of Optical Fractals by Chaotic Solitons in Coupled Nonlinear Helmholtz Equations, 2024, 8, 2504-3110, 594, 10.3390/fractalfract8100594 | |
46. | Mohamed E. M. Alngar, Almetwally M. Mostafa, Salman A. AlQahtani, Reham M. A. Shohib, Pranavkumar Pathak, Highly dispersive eighth-order embedded solitons with cubic–quartic χ(2) and χ(3) nonlinear susceptibilities under the influence of multiplicative white noise using Itô calculus, 2024, 0217-9849, 10.1142/S0217984924504748 | |
47. | Elsayed M E Zayed, Basel M M Saad, Ahmed H Arnous, Yakup Yildirim, Novel stochastic embedded solitons with quadratic nonlinear susceptibility in the presence of multiplicative noise, 2024, 99, 0031-8949, 095215, 10.1088/1402-4896/ad6940 | |
48. | Rehab M. El-Shiekh, Mahmoud Gaballah, Similarity reduction and new wave solutions for the 2D stochastic cubic Schrödinger equation with multiplicative white noise arising in optics, 2024, 56, 0306-8919, 10.1007/s11082-023-05822-5 | |
49. | Elsayed M.E. Zayed, Reham M.A. Shohib, Mohamed E.M. Alngar, Anjan Biswas, Yakup Yıldırım, Luminita Moraru, Catalina Iticescu, Simona Moldovanu, Dorin Bibicu, Abdulah A. Alghamdi, Dispersive optical solitons with DWDM topology and multiplicative white noise, 2023, 51, 22113797, 106723, 10.1016/j.rinp.2023.106723 | |
50. | Wael W. Mohammed, Farah M. Al-Askar, New optical stochastic solutions for the Schrödinger equation with multiplicative Wiener process/random variable coefficients using two different methods, 2024, 22, 2391-5471, 10.1515/phys-2024-0086 | |
51. | E. M. Mohamed, I. L. El-Kalla, A. M. K. Tarabia, A. H. Abdel Kader, New optical solitons for perturbed stochastic nonlinear Schrödinger equation by functional variable method, 2023, 55, 0306-8919, 10.1007/s11082-023-04844-3 | |
52. | Elsayed M. E. Zayed, Reham M. A. Shohib, Mohamed E. M. Alngar, Anjan Biswas, Yakup Yildirim, Anwar Ja’afar Mohamad Jawad, Ali Saleh Alshomrani, Highly dispersive optical solitons with differential group delay for Sasa-Satsuma equation having multiplicative white noise, 2024, 0972-8821, 10.1007/s12596-024-01801-5 | |
53. | Ismail Onder, Handenur Esen, Aydin Secer, Muslum Ozisik, Mustafa Bayram, Sania Qureshi, Stochastic optical solitons of the perturbed nonlinear Schrödinger equation with Kerr law via Ito calculus, 2023, 138, 2190-5444, 10.1140/epjp/s13360-023-04497-x | |
54. | Mir Sajjad Hashemi, Ahmed H Arnous, Mustafa Bayram, Sayed M El Din, Nehad Ali Shah, Schrödinger-Hirota equation in birefringent fibers with cubic-quantic nonlinearity and multiplicative white noise in the ito sense: Nucci’s reductions and soliton solutions, 2024, 99, 0031-8949, 095234, 10.1088/1402-4896/ad6aa4 | |
55. | Manar S. Ahmed, Ahmed H. Arnous, Khaled A. Gepreel, Aydin Secer, Analyzing the influence of multiplicative white noise on optical solitons in birefringent fibers through the perturbed Gerdjikov–Ivanov model, 2024, 56, 1572-817X, 10.1007/s11082-024-07329-z | |
56. | Elsayed M E Zayed, Khaled A E Alurrfi, Abeer M M Hasek, Nouria Arar, Ahmed H Arnous, Yakup Yildirim, Novel highly dispersive soliton solutions in couplers for optical metamaterials: leveraging generalized Kudryashov’s Law of refractive index with eighth-order dispersion and multiplicative white noise, 2024, 99, 0031-8949, 095220, 10.1088/1402-4896/ad69d7 | |
57. | Elsayed M. E. Zayed, Mahmoud El‐Horbaty, Khaled A. Gepreel, Dispersive optical soliton solutions in birefringent fibers with stochastic Kaup–Newell equation having multiplicative white noise, 2024, 47, 0170-4214, 352, 10.1002/mma.9658 | |
58. | Nauman Raza, Saima Arshed, Mustafa Bayram, Kottakkaran Sooppy Nisar, Wedad Albalawi, Mona Mahmoud, Hegagi M. Ali, Exploration of novel solitary waves in presence of higher order polynomial nonlinearity and spatio-temporal dispersion via itô calculus, 2025, 114, 11100168, 179, 10.1016/j.aej.2024.11.057 | |
59. | Elsayed M. E. Zayed, Basel M. M. Saad, Ahmed H. Arnous, Yakup Yildirim, Novel solitary wave solutions in a generalized derivative nonlinear Schrödinger equation with multiplicative white noise effects, 2024, 0924-090X, 10.1007/s11071-024-10725-5 | |
60. | Elsayed M E Zayed, Basel M M Saad, Ahmed H Arnous, Aydin Secer, Handenur Esen, Mustafa Bayram, Chirped and chirp-free optical soliton solutions for stochastic long-short wave resonant equations with multiplicative white noise, 2025, 100, 0031-8949, 015253, 10.1088/1402-4896/ad9d02 | |
61. | Khaled A. Gepreel, Reham M.A. Shohib, Mohamed E.M. Alngar, Yakup Yildirim, Analysis of Novel Optical Cubic–Quartic Solitons in the (2+1)-Dimensional Nonlinear Schrödinger Equation with Multiplicative White Noise, 2025, 03759601, 130204, 10.1016/j.physleta.2024.130204 | |
62. | Bitong Zhang, Ben Gao, Soliton, breather-like and dark-soliton-breather-like solutions in a two-dimensional graded-index waveguide, 2025, 0924-090X, 10.1007/s11071-024-10850-1 | |
63. | Nafissa T. Trouba, Huiying Xu, Mohamed E. M. Alngar, Reham M. A. Shohib, Haitham A. Mahmoud, Xinzhong Zhu, Soliton solutions and stability analysis of the stochastic nonlinear reaction-diffusion equation with multiplicative white noise in soliton dynamics and optical physics, 2025, 10, 2473-6988, 1859, 10.3934/math.2025086 | |
64. | Elsayed M E Zayed, Khaled A E Alurrfi, Abeer M M Hasek, Ahmed H Arnous, Aydin Secer, Muslum Ozisik, Mustafa Bayram, Sachin Kumar, Perturbations of optical solitons in magneto-optic waveguides incorporating multiplicative white noise and sixth-order dispersion: a study of the Sasa–Satsuma equation, 2025, 99, 0973-7111, 10.1007/s12043-024-02848-6 | |
65. | Khaled A. Gepreel, Reham M. A. Shohib, Mohamed E. M. Alngar, Analyzing multiplicative noise effects on stochastic resonant nonlinear Schrödinger equation via two integration algorithms, 2025, 57, 1572-817X, 10.1007/s11082-025-08067-6 | |
66. | Aydin Secer, Mustafa Bayram, Muslum Ozisik, Stochastic higher-order Lakshmanan–Porsezian–Daniel model with cubic-quintic law nonlinearities in the presence of spatio-temporal and chromatic dispersion terms, 2025, 34, 0218-8635, 10.1142/S021886352450005X | |
67. | Elsayed M.E. Zayed, Mona El-Shater, Muhammad Amin S. Murad, Aydin Secer, Muslum Ozisik, Ahmed H. Arnous, Investigating broadly dispersive solitons in optical couplers for metamaterials with nonlinear cubic-quintic-septic dynamics and white noise using distinct integration approaches, 2025, 539, 03759601, 130367, 10.1016/j.physleta.2025.130367 | |
68. | Elsayed M.E. Zayed, Manar S. Ahmed, Ahmed H. Arnous, Yakup Yıldırım, Novel soliton solutions of the (3+1)-dimensional stochastic nonlinear Schrödinger equation in birefringent fibers, 2025, 194, 09600779, 116152, 10.1016/j.chaos.2025.116152 | |
69. | Zhimin Yan, Jinbo Li, Shoaib Barak, Salma Haque, Nabil Mlaiki, Delving into quasi-periodic type optical solitons in fully nonlinear complex structured perturbed Gerdjikov–Ivanov equation, 2025, 15, 2045-2322, 10.1038/s41598-025-91978-x | |
70. | Hongwei Ma, Ziming Liu, Peng Guo, Jianming Qi, Analyzing chaos and bifurcations about fractional order long–short wave interaction system in fluid mechanics models, 2025, 37, 1070-6631, 10.1063/5.0256027 |