| Autor: |
Koetsier, A.O., Duine, R.A., Bloch, Immanuel, Stoof, H.T.C., Condensed Matter Theory, Statistical and Computational Physics, Dep Natuurkunde |
| Rok vydání: |
2008 |
| Předmět: |
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| Zdroj: |
Physical review. A, Atomic, molecular and optical physics, 77(023623), 1. American Physical Society |
| ISSN: |
1050-2947 |
| Popis: |
We theoretically study the possibility of reaching the antiferromagnetic phase of the Hubbard model by starting from a normal gas of trapped fermionic atoms and adiabatically ramping up an optical lattice. Requirements on the initial temperature and the number of atoms are determined for a three-dimensional square lattice by evaluating the Néel state entropy, taking into account fluctuations around the mean-field solution. We find that these fluctuations place important limitations on adiabatically reaching the Néel state. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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