Zobrazeno 1 - 10
of 178
pro vyhledávání: '"Quintero, Niurka R"'
We rigorously solve the time-independent Schr\"odinger equation for the Rosen-Morse type potential. By using the Nikiforov-Uvarov method, we obtain, in a systematic way, the complete solution of such equation, which includes the so-called bound state
Externí odkaz:
http://arxiv.org/abs/2304.06730
The stability of topological solitary waves and pulses in one-dimensional nonlinear Klein-Gordon systems is revisited. The linearized equation describing small deviations around the static solution leads to a Sturm-Liouville problem, which is solved
Externí odkaz:
http://arxiv.org/abs/2206.06910
Publikováno v:
In Physica D: Nonlinear Phenomena February 2024 458
Publikováno v:
Phys. Rev. A 102, 023110 (2020)
A theoretical study of the rotational dynamics of a linear polar molecule in a two-color non-resonant cw laser field is presented. By systematically considering the interactions of this field with the electric dipole moment, polarizability and hyperp
Externí odkaz:
http://arxiv.org/abs/2001.09661
Autor:
Cooper, Fred, Khare, Avinash, Quintero, Niurka R., Sánchez-Rey, Bernardo, Mertens, Franz G., Saxena, Avadh
The damped and parametrically driven nonlinear Dirac equation with arbitrary nonlinearity parameter $\kappa$ is analyzed, when the external force is periodic in space and given by $f(x) =r\cos(K x)$, both numerically and in a variational approximatio
Externí odkaz:
http://arxiv.org/abs/1912.00103
Autor:
Cooper, Fred, Dawson, John F., Mertens, Franz G., Arevalo, Edward, Quintero, Niurka R., Mihaila, Bogdan, Khare, Avinash, Saxena, Avadh
We discuss the effect of small perturbation on nodeless solutions of the nonlinear \Schrodinger\ equation in 1+1 dimensions in an external complex potential derivable from a parity-time symmetric superpotential that was considered earlier [Phys.~Rev.
Externí odkaz:
http://arxiv.org/abs/1707.01574
Publikováno v:
Phys. Rev. E 96, 052219 (2017)
We consider the massless nonlinear Dirac (NLD) equation in $1+1$ dimension with scalar-scalar self-interaction $\frac{g^2}{2} (\bar{\Psi} \Psi)^2$ in the presence of three external electromagnetic potentials $V(x)$, a potential barrier, a constant po
Externí odkaz:
http://arxiv.org/abs/1705.11037
Akademický článek
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Autor:
Mertens, Franz G., Cooper, Fred, Shao, Sihong, Quintero, Niurka R., Saxena, Avadh, Bishop, A. R.
We consider the nonlinear Dirac (NLD) equation in 1+1 dimension with scalar-scalar self-interaction in the presence of external forces as well as damping of the form $\gamma^0 f(x,t) - i \mu \gamma^0 \Psi$, where both $f, \{f_j = r_i e^{i K_j x} \}$
Externí odkaz:
http://arxiv.org/abs/1611.04066
Autor:
Dinis, Luis, Quintero, Niurka R.
Publikováno v:
Physical Review E 91, 032920 (2015)
In this work, the ratchet dynamics of Brownian particles driven by an external sinusoidal (harmonic) force is investigated. The gating ratchet effect is observed when another harmonic is used to modulate the spatially symmetric potential in which the
Externí odkaz:
http://arxiv.org/abs/1503.01959