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pro vyhledávání: '"V., Juan Carlos Lopez"'
Publikováno v:
Int.J.Mod.Phys. A16 (2001) 4769
It is shown that the $F_4$ rational and trigonometric integrable systems are exactly-solvable for {\it arbitrary} values of the coupling constants. Their spectra are found explicitly while eigenfunctions by pure algebraic means. For both systems new
Externí odkaz:
http://arxiv.org/abs/hep-th/0108021
In framework of a variational method the molecular ion $H_2^+$ in a magnetic field is studied. An optimal form of the vector potential corresponding to a given magnetic field (gauge fixing) is chosen variationally. It is shown that for any magnetic f
Externí odkaz:
http://arxiv.org/abs/astro-ph/0010080
Publikováno v:
JETP Lett. 69 (1999) 844-850
Using the variational method it is shown that for magnetic fields $B\geq 10^{11}$ G there can exist a molecular ion $H_3^{++}$.
Comment: LaTeX, 7 pp, 1 table, 4 figures. Title modified. Consideration of the longitudinal size of the system was ad
Comment: LaTeX, 7 pp, 1 table, 4 figures. Title modified. Consideration of the longitudinal size of the system was ad
Externí odkaz:
http://arxiv.org/abs/astro-ph/9809298