Lee’s theorem inη-ξspacetime is discussed.For massless free scalar field,Lee’s theorem is derived from thermal Bogoliubov transformation inη-ξfield theory.For scarlar fields with an arbitrary interaction inη-ξ...Lee’s theorem inη-ξspacetime is discussed.For massless free scalar field,Lee’s theorem is derived from thermal Bogoliubov transformation inη-ξfield theory.For scarlar fields with an arbitrary interaction inη-ξspacetime,Lee’s theorem is proven by Feynman path-integral method.展开更多
The relations between the imaginary-time periodicity and the thermal Bogoliubov transformation inŋ-ξfield theory are discussed.It has been shown that the thermal Bogoliubov transformation leads to the imaginary-time ...The relations between the imaginary-time periodicity and the thermal Bogoliubov transformation inŋ-ξfield theory are discussed.It has been shown that the thermal Bogoliubov transformation leads to the imaginary-time periodicity of the Green function inŋ-ξspacetime and to the KMS condition.展开更多
The real-time thermal Green’s functions with 2×2 matrix in Rindler field theory are derived for massless scalar fields by using both the Bogoliubov transformation method and path-integral formulation.
In the previous paper,a new vacuum state was defined.As claimed in that paper,this vacuum state is a thermal state in the ordinary sense.In this paper,we derive the Greens function of this vacuum and prove that it is ...In the previous paper,a new vacuum state was defined.As claimed in that paper,this vacuum state is a thermal state in the ordinary sense.In this paper,we derive the Greens function of this vacuum and prove that it is exactly the ordinary finite temperature thermal Green function.So we demonstrate that this state is exactly the thermally equilibrium state.展开更多
基金Supported by the National Natural Science Foundation of China.
文摘Lee’s theorem inη-ξspacetime is discussed.For massless free scalar field,Lee’s theorem is derived from thermal Bogoliubov transformation inη-ξfield theory.For scarlar fields with an arbitrary interaction inη-ξspacetime,Lee’s theorem is proven by Feynman path-integral method.
文摘The relations between the imaginary-time periodicity and the thermal Bogoliubov transformation inŋ-ξfield theory are discussed.It has been shown that the thermal Bogoliubov transformation leads to the imaginary-time periodicity of the Green function inŋ-ξspacetime and to the KMS condition.
基金Supported by the National Natural Science Foundation of China。
文摘The real-time thermal Green’s functions with 2×2 matrix in Rindler field theory are derived for massless scalar fields by using both the Bogoliubov transformation method and path-integral formulation.
文摘In the previous paper,a new vacuum state was defined.As claimed in that paper,this vacuum state is a thermal state in the ordinary sense.In this paper,we derive the Greens function of this vacuum and prove that it is exactly the ordinary finite temperature thermal Green function.So we demonstrate that this state is exactly the thermally equilibrium state.
