Photoelectron spectra in an autoionization system interacting with a neighboring atom

Abstract

Photoelectron ionization spectra of an autoionization system with one discrete level interacting with a neighbor two-level atom are discussed. The formula for long-time ionization spectra is derived. According to this formula, the spectra can be composed of up to eight peaks. Moreover, the Fanolike zeros for weak optical pumping have been identified in these spectra. The conditional ionization spectra depending on the state of the neighbor atom exhibit oscillations at the Rabi frequency. Dynamical spectral zeros occurring once per the Rabi period have been revealed in these spectra.

Spin-dependent thermoelectric properties of a Kondo-correlated quantum dot with Rashba spin–orbit coupling

“…It is caused by quantum interference of waves resonantly transmitted through a discrete level and those transmitted nonresonantly through a continuum of states [3]. For example, the Fano antiresonance may be identified in photoelectron ionization spectra of an autoionization system with one discrete level interacting with a neighbor two-level atom [11]. The Fano effect is well known not only in optics, but also in mesoscopic physics.…”

Ảnh Hưởng Của Laser Liên Kết Băng Rộng Đối Với Trong Suốt Cảm Ứng Điện Từ Của Hệ Kiểu Λ Với Cấu Trúc Fano

“…This continuum is coupled with the states 1 a and 2 a by two additional couplings 1 U and 2 U , respectively. By using the diagonalization method of the Fano [12] we can replace all excited states with a dressed continuum ) E that is so-called the double Fano continuum [17][18][19] Applying the formalism of Fano diagonalization the differential equations for the matrix elements of statistical operator and averaging of these equations, we obtain the system of equations for stochastic averages of the variables in the form:…”

Long-time joint spectra and entanglement of two photoelectrons originating in interacting auto-ionization systems

“…We first consider a simplified model analyzed in [47,46]. In this model, atom a has only two discrete states |0 a and |1 a whereas atom b contains the whole continuum |E b of states with energies E b .…”

“…For the discussion, we introduce a useful parametrization that generalizes the parametrization introduced by Fano [14,54]. In our parametrization, parameters µ j , μj , V j , and J j (j = a, b) are replaced by the following parameters [46]:…”

“…Our model represents a generalization of the previously developed models in which ionization spectra and correlations between an ionized electron and a bound electron found at a neighbor atom have been studied. It has been shown that the so-called dynamical Fano zeroes occurring once per the Rabi period can be observed in conditional ionization spectra, independently on the presence [46] or absence [47] of an auto-ionizing level. Moreover, for the previously discussed systems, the dipole-dipole interaction leads to the generation of entangled states encompassing both the ionized and the bound electrons [48,49].…”