We propose a scheme for subwavelength localization of an atom conditioned upon the
absorption of a weak probe field at a particular frequency. Manipulating atom-field …

Publisher Summary Atoms commonly do not act as isolated objects, but rather are open
quantum systems, as they interact with the environment. Typically, this environment is …

By investigating the third-order nonlinearity of a four-level ladder-type atomic system, it is
found that, with spontaneously generated coherence (SGC) present, the nonlinear …

We study the spontaneous-emission properties of a coherently driven four-level atom, and
show a few interesting phenomena such as fluorescence quenching, spectral-line …

In a multi-level quantum system Fano coherences stand for the formation of quantum
coherences due to the interaction with the continuum of modes characterizing an incoherent …

We propose a scheme aimed at achieving spatiospectral control over spontaneous emission
within a four-level atom-light coupling system interacting with optical vortices carrying orbital …

The line center of a resonance is affected by the presence of neighboring resonances due to
quantum interference between the two resonant processes. Such shifts must be accounted …

In this paper we investigate the resonance fluorescence, the squeezing, and the absorption
spectra of a laser-driven four-level atom consisting of three closely spaced upper levels …

Enhanced Kerr nonlinearity via quantum interference from spontaneous emission - ScienceDirect
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The noise-induced coherence created via the quantum interference of incoherent radiation
in atomic three-level systems of V and Λ types driven by a pair of weak laser pulses is shown …