On the Thermodynamic Limit of Bogoluibov's Theory of Bose Gas
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arXiv
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| Auteurs principaux: | , , , |
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| Format: | Preprint |
| Publié: |
2016
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| _version_ | 1866917331608797184 |
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| author | Akant, Levent Dogan, Ebru Ertugrul, Emine Turgut, O. Teoman |
| author_facet | Akant, Levent Dogan, Ebru Ertugrul, Emine Turgut, O. Teoman |
| contents | Assuming that Bogoliubov's theory of weakly interacting dilute Bose gas defines a self-consistent model Hamiltonian, we investigate its thermodynamic limit as we take the volume to infinity. The infinite volume is taken via a sequence of scaled convex regions with piecewise smooth boundary and the volumes staying proportional to the cube of the diameter of the region. To get a strict bound on the behavior of the thermodynamic limit, we use the recent formulation of Bogoliubov's theory of condensation in terms of heat kernels for a given domain as well as an estimate of the difference of traces between the heat kernel with Neumann boundary conditions on this domain and the infinite space result. We cannot control the limiting process by the area term; however, we can come arbitrarily close to it. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_1602_06536 |
| institution | arXiv |
| publishDate | 2016 |
| record_format | arxiv |
| spellingShingle | On the Thermodynamic Limit of Bogoluibov's Theory of Bose Gas Akant, Levent Dogan, Ebru Ertugrul, Emine Turgut, O. Teoman Mathematical Physics Statistical Mechanics 82B10, 81V99, 52D50 Assuming that Bogoliubov's theory of weakly interacting dilute Bose gas defines a self-consistent model Hamiltonian, we investigate its thermodynamic limit as we take the volume to infinity. The infinite volume is taken via a sequence of scaled convex regions with piecewise smooth boundary and the volumes staying proportional to the cube of the diameter of the region. To get a strict bound on the behavior of the thermodynamic limit, we use the recent formulation of Bogoliubov's theory of condensation in terms of heat kernels for a given domain as well as an estimate of the difference of traces between the heat kernel with Neumann boundary conditions on this domain and the infinite space result. We cannot control the limiting process by the area term; however, we can come arbitrarily close to it. |
| title | On the Thermodynamic Limit of Bogoluibov's Theory of Bose Gas |
| topic | Mathematical Physics Statistical Mechanics 82B10, 81V99, 52D50 |
| url | https://arxiv.org/abs/1602.06536 |