Short Description
The treatment of high-dimensional problems such as the Schrödinger equation can be approached by concepts of tensor product approximation. We present general techniques that can be used for the treatment of high-dimensional optimization tasks and time-dependent equations, and connect them to concepts already used in many-body quantum physics.
Introduction
Multiparticle Schrödinger-type equations are an important example of problems posed on high-dimensional tensor spaces. Numerical approximation of solutions of these problems suffers from the curse of dimensionality, i.e., the computational complexity scales exponentially with the dimension of the space. Circumventing this problem is a challenging topic in modern numerical analysis with a variety of applications, covering aside from the electronic and nuclear Schrödinger equation, e.g., the Fokker–Planck equation and the chemical master equation. Considerable progress in the treatment of such problems has been made...
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Schneider, R., Rohwedder, T., Legeza, Ö. (2015). Numerical Approaches for High-Dimensional PDEs for Quantum Chemistry. In: Engquist, B. (eds) Encyclopedia of Applied and Computational Mathematics. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-70529-1_245
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DOI: https://doi.org/10.1007/978-3-540-70529-1_245
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