The polaron at large total momentum
The polaron at large total momentum
复制标题
大总动量下的极化子
DOI：
10.1088/0305-4470/21/5/016
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发表时间：
1988
期刊：
影响因子：
--
通讯作者：
H. Spohn
中科院分区：
文献类型：
--
作者：
H. Spohn
证明了当d=1，2时，极化子(具有一般色散关系和耦合)对于总动量(粒子+玻色场)的任意值都有唯一的基态。对于d>；or=3和足够小的总动量，作者证明了唯一基态的存在，然而扩展了已知的唯一性领域。
Proves that for dimensions d=1, 2 the polaron (with general dispersion relation and couplings) has a unique ground state for any value of the total momentum (particle+Bose field). For d>or=3 and for sufficiently small total momentum the author shows the existence of a unique ground state, extending however the domain of uniqueness known previously.