The symmetries in the Maxwell-Chern-Simons theory coupled to matter fields

• 来源期刊: 中国物理（英文版）
• 关键词: constrained Hamiltonian systems path integral quantization symmetry and conservation laws fractional spin
• 年，卷（期）: 2004,（2）
• 页码范围: 153-158
• 页数: 6页
• 语种: 英文

摘要

The Maxwell-Chern-Simons gauge theory coupled to a complex scalar field is quantized in the Becchi-RouetStora-Tyutin path integral formalism. Based on the symmetries of a constrained canonical (Hamiltonian) system, we obtain the quantal conserved angular momentum of the system under the global symmetry transformation. It is shown that fractional spin also appears at the quantum level. The canonical Ward identities for this system are derived under local gauge transformation.