Quadratic PT-symmetric operators with real spectrum and similarity to self-adjoint operators

被引:21
作者
Caliceti, Emanuela [1 ]
Graffi, Sandro [1 ]
Hitrik, Michael [2 ]
Sjoestrand, Johannes [3 ]
机构
[1] Univ Bologna, Dipartmento Matemat, I-40127 Bologna, Italy
[2] Univ Calif Los Angeles, Dept Math, Los Angeles, CA 90095 USA
[3] Univ Bourgogne, IMB, CNRS UMR 5584 9, FR-21078 Dijon, France
关键词
NON-DIAGONALIZABLE HAMILTONIANS; NON-HERMITIAN HAMILTONIANS; PSEUDO-HERMITICITY; QUANTUM-MECHANICS; RESONANCES;
D O I
10.1088/1751-8113/45/44/444007
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
It is established that a PT-symmetric elliptic quadratic differential operator with real spectrum is similar to a self-adjoint operator precisely when the associated fundamental matrix has no Jordan blocks.
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页数:20
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