Coupled cluster description of field theories: Procedures and their application to the vacuum sector in (1+1)-dimensional Phi/sup 4/ field theories
Journal Article
·
· Phys. Rev. D; (United States)
General procedures for the application of the nonperturbative coupled cluster method (CCM) are described for one-component boson field theories. The basis set is optimized first by a Hartree-Bogolubov transformation. Then ''correlations'' are added via the CCM. This procedure is applied to two-dimensional Phi/sup 4/ field theory. The results are very stable outside the critical region.
- Research Organization:
- Institut fuer Theoretische Physik II, Ruhr-Universitaet Bochum, Postfach 102148, D4630 Bochum 1, Germany and Institute of Physics, National Tsing Hua University, Hsinchu, Taiwan, Republic of China
- OSTI ID:
- 5371491
- Journal Information:
- Phys. Rev. D; (United States), Vol. 32:6
- Country of Publication:
- United States
- Language:
- English
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