0 10 70 51 v 1 1 7 Ju l 2 00 1 Wobbling motion coupled to gamma vibration at high spin
نویسنده
چکیده
We report a solution of the tilted-axis cranked HFB equation for 164Hf, which shows wobbling motion coupled to gamma vibration at high spin (J ≃ 60h̄). Possible anharmonicity and splitting of energy levels are also discussed as a consequence of the wobbling motion with large amplitude. PACS number(s): 27.70.+q, 21.10.-k In understanding the excited states of a quantum many-body system with finite degrees of freedom, the concept of dynamic collective modes has been playing a leading role. For example, in nuclear physics, shape vibrations such as γ and β vibrations [1], octupole vibrations in super-deformed states [2], and giant dipole resonances [3] are well known. In a dilute atomic gas in a Bose-Einstein condensate, which is also a finite system, the dynamic motion displays the scissors mode, which is an out-of-phase vibration among states in the super and normal fluidity [4]. As well as these vibrations, rotations have been also considered and studied in detail. As a result, rotational bands are observed in nuclei, as in atomic and molecular systems [5,1]. The relevant rotational forms are essentially uniform and one-dimensional, and they are sometimes called ”static rotation” because the rotation axis is fixed.
منابع مشابه
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We prove that the classical, non–periodic Toda lattice is super–integrable. In other words, we show that it possesses 2N−1 independent constants of motion, where N is the number of degrees of freedom. The main ingredient of the proof is the use of some special action–angle coordinates introduced by Moser to solve the equations of motion. Mathematics Subject Classification: 37K10, 37J35, 70H06
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