期刊
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
卷 77, 期 7, 页码 -出版社
PHYSICAL SOC JAPAN
DOI: 10.1143/JPSJ.77.074005
关键词
PT symmetric potential; PT invariant potential; modified Korteweg-de Vries equation; inverse scattering method; parity-time symmetry; non-hermitian Hamiltonian
A systematic method is presented for the construction of the parity-time (PT) symmetric potentials. The key idea is the transformation between Dirac type and Schrodinger type eigenvalue problems in the inverse scattering method. As a standard example, the modified Korteweg-de Vries (mKdV) equation is considered. There exists a PT symmetric potential corresponding to a soliton solution. One- and two-soliton PT symmetric potentials are given explicitly. The extensions of the theory into other types of solutions and other soliton equations are discussed.
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