51 citations · 75 across the 15 of their papers we have counts for
15 papers
The anisotropic quantum Rabi model with diamagnetic term
Jorge A. Anaya-Contreras, Irán Ramos-Prieto, Arturo Zúñiga-Segundo +1
We employ a squeeze operator transformation approach to solve the anisotropic quantum Rabi model that includes a diamagnetic term. By carefully adjusting the amplitude of the diama…
Multiphoton processes via conditional measurements in the two-field interaction
J. A. Anaya-Contreras, A. Zúñiga-Segundo, A. Perez-Leija +2
In this contribution, we show that the use of conditional measurements in the resonant interaction of two quantized electromagnetic fields gives rise to nonclassical multiphoton pr…
Generation of Talbot-like fields
Jorge A. Anaya-Contreras, Arturo Zúñiga-Segundo, D. Sánchez-de-la-Llave +1
We present an integral of diffraction based on particular eigenfunctions of the Laplacian in two dimensions. We show how to propagate some fields, in particular a Bessel field, a s…
Airy eigenstates and their relation to coordinate eigenstates
Jorge A. Anaya-Contreras, Arturo Zúñiga-Segundo, Héctor M. Moya-Cessa
We study the eigenvalue problem for a linear potential Hamiltonian and, by writing Airy equation in terms of momentum and position operators define Airy states. We give a solution…
Purification Hamiltonians
Jorge A. Anaya-Contreras, Arturo Zúñiga-Segundo, Héctor M. Moya-Cessa
We study the Jaynes-Cummings interaction when initial mixed states, for the atom or the field, are considered. The evolved mixed field density matrix is purified to a wavefunction…
Quasiprobability distribution functions from fractional Fourier transforms
Jorge A. Anaya-Contreras, A. Zúñiga-Segundo, Héctor M. Moya-Cessa
We show, in a formal way, how a class of complex quasiprobability distribution functions may be introduced by using the fractional Fourier transform. This leads to the Fresnel tran…
Squeeze operators in classical scenarios
Jorge A. Anaya-Contreras, Arturo Zúñiga-Segundo, Francisco Soto-Eguibar +2
We analyse the paraxial field propagation in the realm of classical optics, showing that it can be written as the action of the fractional Fourier transform, followed by the squeez…
Entropy fluctuations as a mixedness quantifier
Jorge A. Anaya-Contreras, Arturo Zúñiga-Segundo, Héctor M. Moya-Cessa
We propose a mixedness quantifier based on entropy fluctuations. It provides information about the degree of mixedness either for finite dimensional and infinite dimensional Hilber…
The von Neumann Entropy for Mixed States
Jorge A. Anaya-Contreras, Héctor M. Moya-Cessa, Arturo Zúñiga-Segundo
The Araki-Lieb inequality is commonly used to calculate the entropy of subsystems when they are initially in pure states as this forces the entropy of the two subsystems to be equa…
Multiphoton processes by conditional measurements in the atom-field interaction
Jorge A. Anaya-Contreras, Arturo Zúñiga-Segundo, Francisco Soto-Eguibar +1
We show that it is possible to add or subtract many photons from a cavity field by interacting it resonantly with a two-level atom. The atom, after entangling with the field inside…
Ultracold two-level atom in a quadratic potential
F. Soto-Eguibar, A. Zúñiga-Segundo, B. M. Rodríguez-Lara +1
We use a right unitary decomposition to study an ultracold two-level atom interacting with a quantum field. We show that such a right unitary approach simplifies the numerical evol…
M00N states in ion-laser interactions
A. Zúñiga-Segundo, R. Juárez-Amaro, F. Soto-Eguibar +1
A new class of entangled states, similar to N00N states is introduced. We call these states M00N states as the excitations shared in both subsystems do not need to be equal. The ge…
Solution for the dispersive and dissipative atom-field Hamiltonian under time dependent linear amplification processes
R. Juárez-Amaro, A. Zúñiga-Segundo, H. Moya-Cessa
The dispersive interaction between a two-level atom and a quantized field is studied. We consider besides a time dependent linear amplification and dissipative processes. In order…
Ion-laser interactions: The most complete solution
Héctor Moya-Cessa, Francisco Soto-Eguibar, José M. Vargas-Martínez +2
Trapped ions are considered one of the best candidates to perform quantum information processing. By interacting them with laser beams they are, somehow, easy to manipulate, which…
Exact solution of the ion-laser interaction in all regimes
A. Zúñiga-Segundo, J. M. Vargas-Martínez, R. Juárez-Amaro +1
We show that in the trapped ion-laser interaction all the regimes may be considered analytically. We may solve not only for different laser intensities, but also away from resonanc…