dorsal/arxiv
View SchemaQuantum number projection at finite temperature via thermofield dynamics
| Authors | K. Tanabe, H. Nakada |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0410054 |
| URL | https://arxiv.org/abs/nucl-th/0410054 |
| DOI | 10.1103/PhysRevC.71.024314 |
| Journal | Phys.Rev. C71 (2005) 024314 |
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.
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"abstract": "Applying the thermo field dynamics, we reformulate exact quantum number\nprojection in the finite-temperature Hartree-Fock-Bogoliubov theory. Explicit\nformulae are derived for the simultaneous projection of particle number and\nangular momentum, in parallel to the zero-temperature case. We also propose a\npractical method for the variation-after-projection calculation, by\napproximating entropy without conflict with the Peierls inequality. The quantum\nnumber projection in the finite-temperature mean-field theory will be useful to\nstudy effects of quantum fluctuations associated with the conservation laws on\nthermal properties of nuclei.",
"arxiv_id": "nucl-th/0410054",
"authors": [
"K. Tanabe",
"H. Nakada"
],
"categories": [
"nucl-th",
"quant-ph"
],
"doi": "10.1103/PhysRevC.71.024314",
"journal_ref": "Phys.Rev. C71 (2005) 024314",
"title": "Quantum number projection at finite temperature via thermofield dynamics",
"url": "https://arxiv.org/abs/nucl-th/0410054"
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