Searching for New Conditions for Fermion N -representability
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چکیده
New elements of the dual cone of the set of fermion N -representable 2-density operators are proposed. So far, the explicit form of the corresponding necessary conditions for N -representability is obtained for N = 3. In this case the new condition is stronger than the known Band C-conditions for 3-representability. The results provide evidence that in the spectral decomposition of the N -representable 2-density operator there exists an intrinsic relation between the eigenvalue and the corresponding eigenfunction. keywords: fermion N-representability problem, conditions for Nrepresentability
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تاریخ انتشار 2003