An algebraic method for Schrödinger equations in quaternionic quantum mechanics
In the study of theory and numerical computations of quaternionic quantum mechanics and quantum chemistry, one of the most important tasks is to solve the Schrödinger equation ∂ ∂ t | f 〉 = − A | f 〉 with A an anti-self-adjoint real quaternion matrix, and | f 〉 an eigenstate to A. The quaternionic S...
Saved in:
Published in | Computer physics communications Vol. 178; no. 11; pp. 795 - 799 |
---|---|
Main Authors | , |
Format | Journal Article |
Language | English |
Published |
Elsevier B.V
01.06.2008
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | In the study of theory and numerical computations of quaternionic quantum mechanics and quantum chemistry, one of the most important tasks is to solve the Schrödinger equation
∂
∂
t
|
f
〉
=
−
A
|
f
〉
with
A an anti-self-adjoint real quaternion matrix, and
|
f
〉
an eigenstate to
A. The quaternionic Schrödinger equation plays an important role in quaternionic quantum mechanics, and it is known that the study of the quaternionic Schrödinger equation is reduced to the study of quaternionic eigen-equation
A
α
=
α
λ
with
A an anti-self-adjoint real quaternion matrix (time-independent). This paper, by means of complex representation of quaternion matrices, introduces concepts of norms of quaternion matrices, studies the problems of quaternionic Least Squares eigenproblem, and give a practical algebraic technique of computing approximate eigenvalues and eigenvectors of a quaternion matrix in quaternionic quantum mechanics. |
---|---|
ISSN: | 0010-4655 1879-2944 |
DOI: | 10.1016/j.cpc.2008.01.038 |