Coherent-State Representation of Many-Fermion Quantum Mechanics
- 11 August 1980
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 45 (6), 406-409
- https://doi.org/10.1103/physrevlett.45.406
Abstract
An exact coherent-state representation is given for fermion systems which avoids the Gaussian overlap approximation in the reduction of the Hill-Wheeler-Griffin integral equation to a differential equation. An application shows that the random-phase-approximation ground-state correlation energy, derived with use of the Gaussian overlap approximation, is a factor of 2 too large.Keywords
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