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Acta Physica Sinica

两原子与双模腔场喇曼相互作用（g1≠g2）的辐射谱

冯健, 宋同强, 王文正, 许敬之

Published Jan 1, 1996• 0 citations
OpenAlex

Abstract

研究了两个有效双能级原子与双模腔场具有不同耦合常数（ｇ１≠ｇ２）时通过喇曼相互作用的辐射谱，详细讨论了双模腔场分别处于不同数态时的情形，发现其辐射谱具有如下新特点：当模１腔场处于真空态，模２腔场处于弱场中时，随着Ｒ＝ｇ２／ｇ１的增加，辐射谱交替出现对称的１０峰、６峰结构，与单模双原子情形相比较，更为灵敏地反映出两原子与腔场间不同的喇曼相互作用强度；当模１场处于真空态、模２腔场处于强场中时，０〈Ｒ〈

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Here N is the size of the Hilbert space. If g1 is very close to g2, one might expect that ψ (1) i ∼ ψ (2) i for 1 ≤ i ≤ N . That is, the eigenstates of H(g1) are not so much mixed to form the eigenstates of H(g2). However, if g1 is far away from g2, say, they are on the opposite side of each other to some critical point, one would expect each state in the second spectrum is a superposition of “a lot” (to be quantified somehow below) of states in the first spectrum. Intuitively, we say, the spectrum is greatly twisted as g is varied from g1 to g2. We want to characterize the extent of twisting. The strategy is like this. We want to find a one-to-one mapping between the two spectra, such that the sum of the overlaps inside each pair is maximized. That is, we want
研究了双模腔场中两个偶极相互作用原子的辐射谱，详细讨论了双模腔场分别处于不同数态时的情形，发现其辐射谱具有如下特点：当两模腔场均处于真空态时，随着δ＝ｇa／ｇ的增加，辐射谱交替出现六峰、五峰结构，且在δ（＝３－１／２）很小时就出现了非对称五峰结构，与单模双原子情形相比较，更为灵敏地反映出原子间的偶极相互作用；当一腔场为真空场，另一腔场为强场时，辐射谱显示出对称的六峰结构，任意两对称峰的间距与(2ｎ2)１／２ｇ成正比；当