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基于微观IBM理论,提出转动诱导出玻色子量子相变的一种可能途径:一旦原子核在受到高能激发或作快速旋转时,假如外界提供的能量足以使玻色子完成拆对顺排,则核处于集体相与单粒子态的共存相,其特征是出现较密集的能谱;假如能量不足以完成拆对或顺排,可能发生两种情况之一,当核旋转达到某个临界转动频率ωc时,或者一个高角动量的玻色子脱离“集体”而“游离”出来,或者发生一个高角动量的玻色子转变为一个低角动量的玻色子,核仍旧处于集体相;均会伴随出现光辐射,产生基态带的一条能级———相变信号.正是这类玻色子相变导致了原子核的量子相变.本物理图像统一了玻色子拆对顺排相变和退耦释放光子相变的描述.以100Pd核的141+,142+和143+态的产生机理为例,对模型作了仔细说明.
Based on the micro-IBM theory, a possible way to induce the quantum transition of bosons by rotation is as follows: once the nuclei are excited by high energy or make rapid rotation, if the energy provided by the outside world is enough to complete the disassembly and alignment of the bosons, The nucleus is in the coexistence phase of the collective phase and the single particle state, and is characterized by a dense energy spectrum. If the energy is insufficient to complete the disassembly or alignment, one of two situations may occur. When the nuclear rotation reaches a certain critical rotation frequency ωc, either a high-angular momentum boson is “free” out of the “collective” or a high-angular momentum boson transforms into a low-angular momentum boson that remains in a collective phase; The emergence of optical radiation, resulting in a ground state band phase - the phase change signal.It is this type of boson phase transition led to the nuclear quantum phase transition. The physical image unification of the boson disassembly of the cis-phase transition and The description of the decoupled release photon phase transition is described in detail by taking the generation mechanism of the 141 +, 142 + and 143+ states of 100Pd nucleus as an example.