Existence of a ground state for the Nelson model with a singular perturbation

被引:3
|
作者
Hidaka, Takeru [1 ]
机构
[1] Kyushu Univ Fukuoka, Grad Sch Math, Fukuoka 8190395, Japan
关键词
PAULI-FIERZ HAMILTONIANS; QUANTUM-FIELD THEORY; NONRELATIVISTIC PARTICLES; INFRARED CUTOFF; SCALAR FIELD; BOSE FIELD;
D O I
10.1063/1.3548076
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The existence of a ground state of the Nelson Hamiltonian with perturbations of the form Sigma(4)(j=1) c(j)phi(j) with c(4) > 0 is considered. The self-adjointness of the Hamiltonian and the existence of a ground state are proven for arbitrary values of coupling constants. (C) 2011 American Institute of Physics. [doi:10.1063/1.3548076]
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页数:21
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