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Open Quantum Systems Decoherence
Quantum Simulation
Comment on: "Solving many-body Schrödinger equations with kinetic energy partition method", Ann. Phys. 388 (2018) 54-68 by Y-H. Chen and S. D. Chao
arXiv
Authors: Francisco M. Fernández
Year
2020
Paper ID
18883
Status
Preprint
Abstract Read
~2 min
Abstract Words
77
Citations
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Abstract
We discuss a recent test of the performance of the kinetic energy partition method (KEP) through its application to two separable quantum-mechanical models. We argue that one of the benchmark models is exceedingly simple for testing any realistic approximate method and that almost any reasonable approach yields better results. In the second example our exact benchmark eigenvalues disagree considerably with those chosen by the authors for comparison, which casts doubts on the accuracy of their KEP approach.
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- This paper contributes to the Quantum Simulation research area in the Quantum Articles archive.
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- We discuss a recent test of the performance of the kinetic energy partition method (KEP) through its application to two separable quantum-mechanical models.
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