59 citations · 113 across the 6 of their papers we have counts for
9 papers
Distance-based degrees of polarization for a quantum field
A. B. Klimov, L. L. Sanchez-Soto, E. C. Yustas +2
It is well established that unpolarized light is invariant with respect to any SU(2) polarization transformation. This requirement fully characterizes the set of density matrices r…
Vectorlike representation of one-dimensional scattering
L. L. Sanchez-Soto, J. F. Carinena, A. G. Barriuso +1
We present a self-contained discussion of the use of the transfer-matrix formalism to study one-dimensional scattering. We elaborate on the geometrical interpretation of this trans…
Inequivalent classes of closed three-level systems
Andre B. Klimov, Hubert de Guise, Luis L. Sanchez-Soto
We show here that the and V configurations of three-level atomic systems, while they have recently been shown to be equivalent for many important physical quantities when drive…
Phase states for a three-level atom interacting with quantum fields
A. B. Klimov, L. L. Sanchez-Soto, J. Delgado +1
We introduce phase operators associated with the algebra su(3), which is the appropriate tool to describe three-level systems. The rather unusual properties of this phase are cause…
Two-photon imaging and quantum holography
Gunnar Bjork, Jonas Soderholm, Luis L. Sanchez-Soto
It has been claimed that ``the use of entangled photons in an imaging system can exhibit effects that cannot be mimicked by any other two-photon source, whatever strength of the co…
Effective Hamiltonians in quantum optics: a systematic approach
A. B. Klimov, L. L. Sanchez-Soto, A. Navarro +1
We discuss a general and systematic method for obtaining effective Hamiltonians that describe different nonlinear optical processes. The method exploits the existence of a nonlinea…