Note on the Path-Integral Variational Approach in the Many-Body Theory
arXiv:cond-mat/0107326 · doi:10.1142/9789812811240_0026
Abstract
I discuss how a variatonal approach can be extended to systems of identical particles (in particular fermions) within the path-integral treatment. The applicability of the many-body variational principle for path integrals is illustrated for different model systems, and is shown to crucially depend on whether or not a model system possesses the proper symmetry with respect to permutations of identical particles.
arXiv comment15 pages, 1 figure, E-mail address: [email protected]