Quantum number projection at finite temperature via thermofield dynamics
Nuclear Theory
2009-11-10 v2 Quantum Physics
Abstract
Applying the thermo field dynamics, we reformulate exact quantum number projection in the finite-temperature Hartree-Fock-Bogoliubov theory. Explicit formulae are derived for the simultaneous projection of particle number and angular momentum, in parallel to the zero-temperature case. We also propose a practical method for the variation-after-projection calculation, by approximating entropy without conflict with the Peierls inequality. The quantum number projection in the finite-temperature mean-field theory will be useful to study effects of quantum fluctuations associated with the conservation laws on thermal properties of nuclei.
Cite
@article{arxiv.nucl-th/0410054,
title = {Quantum number projection at finite temperature via thermofield dynamics},
author = {K. Tanabe and H. Nakada},
journal= {arXiv preprint arXiv:nucl-th/0410054},
year = {2009}
}
Comments
27 pages, using revtex4, to be published in PRC