Abstract Using the technique of integration within an ordered product of operators, we construct a new common eigenvector set of the complex scalar fields $\varphi$(x) and $\phi^{\dagger}$(x), which is a set of particle-antiparticle correlated states. On the basis of the new eigenstates we develop the path integral formuation. The new eigenvectors' properties are investigated, they are qualified to be a new representation.
Received: 23 April 1998
Accepted manuscript online:
Fan Hong-yi (范洪义), Fan Yue (范悦) PATH INTEGRAL IN CORRELATED EIGENSTATE BASIS OF COMPLEX SCALAR FIELDS $\phi$(x) AND $\phi^{\dagger}$(x) 1999 Acta Physica Sinica (Overseas Edition) 8 161
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