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Showing 1 to 3 of 3 for “"cluster mean field"”.
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Cluster mean-field dynamics of the long-range interacting Ising chain
… the long-range interacting Ising chain using a cluster mean-field approach, a mean-field theory that accounts for short range correlations. The principal result is that, if the system is isolated from an external environment, the model exhibits two different behaviors depending on the range of …
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Modern Electronic Structure Theory using Tensor Product States
… been a major challenge for a long time in the field of theoretical chemistry. For such systems, the relevant portion of the Hilbert space scales exponentially, preventing efficient simulation on large systems. However, in many cases, the Hilbert space can be partitioned into clusters on the …
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Unique cluster expansion for reliable first-principles prediction of alloy thermodynamics and phase diagrams
"A theoretical multi-scale approach based on the cluster expansion (CE) has been developed to aid materials design and discovery for scientific and engineering applications. Using structural energies from first-principles electronic theory, an effective (CE) Hamiltonian that is suitable for large …