Comparison between a boson-expansion method and the exact solution in a two-level model
1982 ◽
Vol 44
(6)
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pp. 805-808
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1999 ◽
Vol 647
(3-4)
◽
pp. 246-256
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1992 ◽
Vol 24
(10)
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pp. 1165-1172
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Keyword(s):
2015 ◽
Vol 49
(6)
◽
pp. 221-231
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