Ground state of the massless Nelson model without infrared cutoff in a non-Fock representation
Ground state of the massless Nelson model without infrared cutoff in a non-Fock representation
复制标题
非福克表示中无红外截止的无质量尼尔森模型的基态
DOI:
10.1142/s0129055x01000934
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发表时间:
2000
期刊:
影响因子:
--
通讯作者:
A. Arai
中科院分区:
文献类型:
--
作者:
A. Arai
We consider a model of quantum particles coupled to a massless quantum scalar field, called the massless Nelson model, in a non-Fock representation of the time-zero fields which satisfy the canonical commutation relations. We show that the model has a ground state for all values of the coupling constant even in the case where no infrared cutoff is made. The non-Fock representation used is inequivalent to the Fock one if no infrared cutoff is made.