By Claude Cohen-Tannoudji
This publication provides a complete assessment of the mind-blowing advances noticeable in atomic physics over the last 50 years. The authors clarify how such development was once attainable via highlighting connections among advancements that happened at varied occasions. They talk about the hot views and the recent study fields that glance promising. The emphasis is put, now not on targeted calculations, yet fairly on actual principles. Combining either theoretical and experimental concerns, the e-book could be of curiosity to a variety of scholars, academics and researchers in quantum and atomic physics.
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Additional resources for Advances in atomic physics : an overview
This geometric interpretation also establishes a clear connection between linear superpositions of the two spin states and the existence of a spin transverse magnetization, perpendicular to the static field. When monochromatic laser sources became available, it was soon realized that a great similarity exists between the behavior of spins interacting with RF fields and the behavior of atoms interacting with coherent monochromatic fields. All the basic concepts, first introduced in the RF domain (Rabi oscillation, transient effects, Bloch equations) were extended to the optical domain.
5in General introduction ourbook 5 can realize atomic interferometers, where the two paths of the interferometer differ, not only by the external variables of the center of mass, but also by the atomic internal variables. In Chap. 18, we describe these interferometers and their important applications. Atomic clocks with ultracold atoms are presently the most accurate time frequency standards, and atomic interferometers provide the most precise measurements of inertial fields. Finally, in Chap. 19, we consider linear superpositions of states of two subsystems 1 and 2.
The spin undergoes a Larmor precession around X at the frequency Ω1 , which is called the “Rabi frequency”. This precession describes reversible oscillations between the two spin states ±1/2 due to absorption and stimulated emission processes. 29) and then in the rotating frame OXY Z with the rotating wave approximation ˜ = H 2 ω 0 − ω Ω1 Ω1 ω − ω 0 . 30) 10 This approximation discards higher order effects such as the Bloch-Siegert shift (see, for example, Complement AV I of Chap. VI of [Cohen-Tannoudji et al.