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What does DM stand for?

DM stands for Density Matrix

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We have 95 other meanings of DM in our Acronym Attic

Samples in periodicals archive:

Among the topics are dynamics of nano-confined supercooled liquids, simulated chemistry using quantum computers, hydrated acid clusters, reorientation and allied dynamics in water and aqueous solutions, the density matrix renormalization group in quantum chemistry, roaming radicals, and non-adiabetic events and conical intersections.
Renaud in [5] proved a matrix formulation of Gruss inequality which says that if A and B are n x n complex matrices and the numerical ranges W(A) and W(B) are contained in disks of radii R and S, respectively, then for every n x n density matrix T, the following inequality holds [absolute value of Tr(TAB) - Tr(TA)Tr(TB)] [less than or equal to] 4RS.
of Houston) provides a survey of classical mechanics before discussing such topics as wave functions, semiclassical quantum mechanics, representations and dynamics, quantum density matrix, electron structure of conjugated systems and lattice models for transport and structure.
To answer this question, we present a necessary and sufficient criterion for multipartite entangled states; this criterion is particularly useful when the density matrix of the given quantum states has few nonzero eigenvalues.