The lowest Landau level in QCD
The thermodynamics of Quantum Chromodynamics (QCD) in external (electro-)magnetic fields shows some unexpected features like inverse magnetic catalysis, which have been revealed mainly through lattice studies. Many effective descriptions, on the other hand, use Landau levels or approximate the syste...
| Автори: | , , , , , , |
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| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
EDP Sciences
2017-01-01
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| Серія: | EPJ Web of Conferences |
| Онлайн доступ: | https://doi.org/10.1051/epjconf/201713703003 |
| Резюме: | The thermodynamics of Quantum Chromodynamics (QCD) in external (electro-)magnetic fields shows some unexpected features like inverse magnetic catalysis, which have been revealed mainly through lattice studies. Many effective descriptions, on the other hand, use Landau levels or approximate the system by just the lowest Landau level (LLL). Analyzing lattice configurations we ask whether such a picture is justified. We find the LLL to be separated from the rest by a spectral gap in the two-dimensional Dirac operator and analyze the corresponding LLL signature in four dimensions. We determine to what extent the quark condensate is LLL dominated at strong magnetic fields. |
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| ISSN: | 2100-014X |