Introducing the coherent state ansatz and the time-dependent variational principle,we obtain the two partial different equations of motion from Hamiltonian.Employing the method of multiple scales,we reduce these equat...Introducing the coherent state ansatz and the time-dependent variational principle,we obtain the two partial different equations of motion from Hamiltonian.Employing the method of multiple scales,we reduce these equations into the envelope function equation and find the amplitude function satisfied a nonlinear Schrödinger equation.We get the periodic wave solution and analyse its stability antiferromagnet KCuF_(3).展开更多
Employing the Holstein-Primakoff transformation and the coherent state ansatz,we obtain two partial differential equations of motion from Hamiltonian.Using the method of multiple scalar,we reduce these equations into ...Employing the Holstein-Primakoff transformation and the coherent state ansatz,we obtain two partial differential equations of motion from Hamiltonian.Using the method of multiple scalar,we reduce these equations into a nonlinear Schrodinger equation and get the single soliton solution.These results show that solitary magnon localization in antiferromagnet Ni( C_(2)H_(8)N_(2))_(2)NO_(2)C1O_(4) is possible.展开更多
基金Supported by the National Natural Science Foundation of China.
文摘Introducing the coherent state ansatz and the time-dependent variational principle,we obtain the two partial different equations of motion from Hamiltonian.Employing the method of multiple scales,we reduce these equations into the envelope function equation and find the amplitude function satisfied a nonlinear Schrödinger equation.We get the periodic wave solution and analyse its stability antiferromagnet KCuF_(3).
文摘Employing the Holstein-Primakoff transformation and the coherent state ansatz,we obtain two partial differential equations of motion from Hamiltonian.Using the method of multiple scalar,we reduce these equations into a nonlinear Schrodinger equation and get the single soliton solution.These results show that solitary magnon localization in antiferromagnet Ni( C_(2)H_(8)N_(2))_(2)NO_(2)C1O_(4) is possible.
