Polarization correlations in the two--photon decay of hydrogen--like ions

Abstract

Polarization properties of the photons emitted in the two-photon decay of hydrogen-like ions are studied within the framework of the density matrix and second-order perturbation theory. In particular, we derive the polarization correlation function that gives the probability of the (two-photon) coincidence measurement performed by polarization-sensitive detectors. Detailed calculations of this function are performed for the $2s_{1/2}\to 1s_{1/2}$ transition in neutral hydrogen as well as Xe${}^{53+}$ and U${}^{91+}$ ions. The obtained results allow us to understand the influence of relativistic and non-dipole effects on the polarization correlations in the bound-bound two-photon transitions in heavy ions.

References in corpus (1)

• Quantum correlations in the two-photon decay of few-electron ions

Cited by in corpus (7)

• Relativistic total cross section and angular distribution for Rayleigh scattering by atomic hydrogen
• Relativistic polarization analysis of Rayleigh scattering by atomic hydrogen
• Parametrization of the angular correlation and degree of linear polarization in two-photon decays of hydrogen-like ions
• Angular and polarization analysis for two-photon decay of 2s hyperfine states of hydrogenlike Uranium
• Spin effects probed by Rayleigh X-ray scattering off hydrogenic ions
• Photon-photon polarization correlations as a tool for studying parity non-conservation in heliumlike Uranium
• Two-photon processes based on quantum commutators