85 citations · 306 across the 15 of their papers we have counts for
15 papers
Linear rotor in an ideal Bose gas near the threshold for binding
Tibor Dome, Artem G. Volosniev, Areg Ghazaryan +3
We study a linear rotor in a bosonic bath within the angulon formalism. Our focus is on systems where isotropic or anisotropic impurity-boson interactions support a shallow bound s…
Quantum interference in laser spectroscopy of highly charged lithiumlike ions
Pedro Amaro, Ulisses Loureiro, Laleh Safari +4
We investigate the quantum interference induced shifts between energetically close states in highly charged ions, with the energy structure being observed by laser spectroscopy. In…
Quantum interference shifts in laser spectroscopy with elliptical polarization
Pedro Amaro, Filippo Fratini, Laleh Safari +4
We investigate the quantum interference shifts between energetically close states, where the state structure is observed by laser spectroscopy. We report a compact and analytical e…
Relativistic evaluation of the two-photon decay of the metastable ${1s}^{2} 2s 2p~^3\mbox{P}_0$ state in berylliumlike ions with an active-electron model
Pedro Amaro, Filippo Fratini, Laleh Safari +4
The two-photon ${1s}^{2} 2s 2p~^3\mbox{P}_0 \rightarrow {1s}^{2} {2s}^2$ $^1\mbox{S}_0$ transition in berylliumlike ions is theoretically investigated within a full relativistic fr…
Quantized form factor shift in the presence of free electron laser radiation
F. Fratini, L. Safari, A. G. Hayrapetyan +3
In electron scattering, the target form factors contribute significantly to the diffraction pattern and carry information on the target electromagnetic charge distribution. Here we…
Quantum interference effects in laser spectroscopy of muonic hydrogen, deuterium, and helium-3
Pedro Amaro, Beatrice Franke, Julian J. Krauth +9
Quantum interference between energetically close states is theoretically investigated, with the state structure being observed via laser spectroscopy. In this work, we focus on hyp…
A Fabry-Perot interferometer with quantum mirrors: nonlinear light transport and rectification
F. Fratini, E. Mascarenhas, L. Safari +5
Optical transport represents a natural route towards fast communications, and it is currently used in large scale data transfer. The progressive miniaturization of devices for info…
Spin effects probed by Rayleigh X-ray scattering off hydrogenic ions
Laleh Safari, Jose Paulo Santos, Pedro Amaro +1
We study the polarization characteristics of x-ray photons scattered by hydrogenic atoms, based on the Dirac equation and second-order perturbation theory. The relativistic states…
Angular and polarization analysis for two-photon decay of 2s hyperfine states of hydrogenlike Uranium
Laleh Safari, Pedro Amaro, Jose Paulo Santos +1
The amplitude of two-photon transitions between hyperfine states in hydrogenlike ions is derived based on relativistic Dirac equation and second order perturbation theory. We study…
Quantum mechanical evolution operator in the presence of a scalar linear potential: discussion on the evolved state
Filippo Fratini, Laleh Safari
We discuss the form of the wave-function of a state subjected to a scalar linear potential, paying special attention to quantum tunneling. We analyze the phases acquired by the evo…
Double-Electromagnetically Induced Transparency in a Y-type atomic system
L. Safari, D. Iablonskyi, F. Fratini
We study the absorption and dispersion properties of a weak tunable probe field in a four-level Y-type atomic system driven by two strong laser (coupling) fields within the framewo…
Relativistic polarization analysis of Rayleigh scattering by atomic hydrogen
Laleh Safari, Pedro Amaro, Stephan Fritzsche +3
A relativistic analysis of the polarization properties of light elastically scattered by atomic hydrogen is performed, based on the Dirac equation and second order perturbation the…
Effect of quantum interference on the optical properties of a three-level V-type atomic system beyond the two-photon resonance condition
S. M. Mousavi, L. Safari, M. Mahmoudi +1
The effect of quantum interference on the optical properties of a pumped-probe three-level V-type atomic system is investigated. The probe absorption, dispersion, group index and o…
Relativistic total cross section and angular distribution for Rayleigh scattering by atomic hydrogen
L. Safari, P. Amaro, S. Fritzche +2
We study the total cross section and angular distribution in Rayleigh scattering by hydrogen atom in the ground state, within the framework of Dirac relativistic equation and secon…
Gain-assisted superluminal light propagation via incoherent pump field
M. Mahmoudi, S. Worya Rabiei, L. Safari +1
We investigate the dispersion and the absorption properties of a weak probe field in a three-level Lambda-type atomic system. We use just an incoherent field for controlling the gr…