{"page":"213 - 226","issue":"3","publication":"Letters in Mathematical Physics","doi":" 10.1023/A:1010978807635","volume":54,"abstract":[{"text":"We study the energy levels of a single particle in a homogeneous magnetic field and in an axially symmetric external potential. For potentials that are superharmonic off the central axis, we find a general 'pseudoconcave' ordering of the ground state energies of the Hamiltonian restricted to the sectors with fixed angular momentum. The physical applications include atoms and ions in strong magnetic fields. There the energies are monotone increasing and concave in angular momentum. In the case of a periodic chain of atoms, the pseudoconcavity extends to the entire lowest band of Bloch functions.","lang":"eng"}],"publist_id":"4582","author":[{"first_name":"Bernhard","last_name":"Baumgartner","full_name":"Baumgartner, Bernhard"},{"full_name":"Robert Seiringer","first_name":"Robert","id":"4AFD0470-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-6781-0521","last_name":"Seiringer"}],"publisher":"Springer","extern":1,"day":"01","type":"journal_article","_id":"2343","date_published":"2000-11-01T00:00:00Z","year":"2000","status":"public","date_updated":"2021-01-12T06:56:54Z","date_created":"2018-12-11T11:57:06Z","month":"11","publication_status":"published","intvolume":" 54","main_file_link":[{"url":"http://arxiv.org/abs/math-ph/0011031","open_access":"1"}],"oa":1,"title":"On the ordering of energy levels in homogeneous magnetic fields","citation":{"ista":"Baumgartner B, Seiringer R. 2000. On the ordering of energy levels in homogeneous magnetic fields. Letters in Mathematical Physics. 54(3), 213–226.","apa":"Baumgartner, B., & Seiringer, R. (2000). On the ordering of energy levels in homogeneous magnetic fields. *Letters in Mathematical Physics*. Springer. https://doi.org/ 10.1023/A:1010978807635","chicago":"Baumgartner, Bernhard, and Robert Seiringer. “On the Ordering of Energy Levels in Homogeneous Magnetic Fields.” *Letters in Mathematical Physics*. Springer, 2000. https://doi.org/ 10.1023/A:1010978807635.","ieee":"B. Baumgartner and R. Seiringer, “On the ordering of energy levels in homogeneous magnetic fields,” *Letters in Mathematical Physics*, vol. 54, no. 3. Springer, pp. 213–226, 2000.","short":"B. Baumgartner, R. Seiringer, Letters in Mathematical Physics 54 (2000) 213–226.","ama":"Baumgartner B, Seiringer R. On the ordering of energy levels in homogeneous magnetic fields. *Letters in Mathematical Physics*. 2000;54(3):213-226. doi: 10.1023/A:1010978807635","mla":"Baumgartner, Bernhard, and Robert Seiringer. “On the Ordering of Energy Levels in Homogeneous Magnetic Fields.” *Letters in Mathematical Physics*, vol. 54, no. 3, Springer, 2000, pp. 213–26, doi: 10.1023/A:1010978807635."},"quality_controlled":0}