Geometric phase of a moving three-level atom
نویسندگان
چکیده
منابع مشابه
Geometric phase of three-level systems in interferometry.
We present the first scheme for producing and measuring an Abelian geometric phase shift in a three-level system where states are invariant under a non-Abelian group. In contrast to existing experiments and proposals for experiments, based on U(1)-invariant states, our scheme geodesically evolves U(2)-invariant states in a four-dimensional SU(3)/U(2) space and is physically realized via a three...
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Abstract The spontaneous emission spectrum from a driven three-level atom placed inside a double-band photonic crystal has been investigated. We use the model which assumes the upper levels of the atomic transition are coupled via a classical driving field. The transition from one of the upper levels to lower level couples to the modes of the modified reservoir, and the transition from the oth...
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We propose a scheme for localizing an atom in a four-level configuration inside a classical standing wave field, conditioned upon the measurement of frequency of a weak probe field. In the classical standing wave field, the interaction between the atom and the field is position dependent due to the Rabi-frequency of the driving field. Hence, as the absorption frequency of the probe field is mea...
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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 caused by the small dimension of the system and are explored in detail. When a three-level atom interacts with a quantum field in a cavity, a polynomial deformation of this algebra emerges in a natural way. We also introdu...
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One of the most striking features of the interaction of a monochromatically driven two-level atom interacting with a squeezed vacuum is the existence of phasedependent features in resonance fluorescence. The relative heights and widths of the spectrum triplet vary greatly with the phase of the squeezed vacuum [1,2]. In addition, some peaks may show subnatural linewidths. Although these effects ...
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ژورنال
عنوان ژورنال: Optics Communications
سال: 2010
ISSN: 0030-4018
DOI: 10.1016/j.optcom.2009.12.065