152 citations · 1.2k across the 71 of their papers we have counts for
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hep-th2003★ 9 cited
Classical O(N) nonlinear sigma model on the half line: a study on consistent Hamiltonian description
Wenli He, Liu Zhao
The problem of consistent Hamiltonian structure for O(N) nonlinear sigma model in the presence of five different types of boundary conditions is considered in detail. For the case…
hep-th2003★ 6 cited
Generalized Toda mechanics associated with classical Lie algebras and their reductions
Liu Zhao, Wangyun Liu, Zhanying Yang
For any classical Lie algebra , we construct a family of integrable generalizations of Toda mechanics labeled a pair of ordered integers . The universal form of the Lax p…
hep-th2003★ 2 cited
On open string in generic background
Liu Zhao, Wenli He
A set of consistent Poisson brackets for an open string in generic spacetime background and NS-NS -field is constructed. Upon quantization, this set of Poisson brackets lead to…