A review of basic linear algebra methods including eigenvalue problems, Schur, QR, LU, and singular value decompositions for quantum systems.
A banded matrix has upper and lower bandwidths according to aij = 0∀(j >i+q)∨(i>j+p)(35) whereqis the upper bandwidth andpis the lower band- width [21]
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Basic linear algebra methods for quantum problems
A review of basic linear algebra methods including eigenvalue problems, Schur, QR, LU, and singular value decompositions for quantum systems.