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- W2080609922 abstract "Abstract The effectiveness of the approach for systematical reconstruction of higher order reduced density matrices with lower order ones, which was developed by Chen ( Science in China B , 2006, 49 : 402), was compared theoretically with that of Mazziotti's method through Harris model, by omitting the cumulant terms 3 Δ M , 4Δ M in the latter method and the normal product terms 3 Δ, 4 Δ in the former method, it was found that the errors from both approaches were comparable. As a better approximation, if only fourth-order terms 4Δ M and 4 Δ in both methods are neglected whereas the third-order terms 3Δ M and 3 Δ are computed from their cor-responding fourth-order terms 4Δ M and 4 Δ, respectively, through contractions, the results calculated with Chen's approach not only have the correct signs but also are very close to the exact normal products 3 Δ whereas some of the results calculated with Mazziotti's method do not even have the correct signs with respect to the exact cumulants 3Δ M ." @default.
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- W2080609922 date "2007-04-01" @default.
- W2080609922 modified "2023-10-05" @default.
- W2080609922 title "Theoretical Analysis of Two Reconstruction Schemes of Reduced Density Matrices" @default.
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- W2080609922 doi "https://doi.org/10.1016/s1872-1508(07)60036-9" @default.
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