Computational Approaches to Novel Condensed Matter Systems: An Overview
A major challenge in modern condensed matter theory is the bridging of the gap between those quantum systems which consist of just a single body and quantum systems which are made up of many particles. Exact analytic solutions for many-particle systems exist only for highly simplified Hamiltonians or if major approximations are first introduced into the analytic expressions and these approximations are frequently not tightly controllable. Perturbation methods are often not suitable for many-body systems of condensed matter because of the interactions between the constituent particles can be far too strong to be treated as a small parameter in a perturbation expansion.
KeywordsDensity Functional Theory Condensed Matter System Quantum Monte Carlo Auxiliary Field Trial Wave Function
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