R Twarock 1999 J. Phys. A: Math. Gen. 32 4971 doi:10.1088/0305-4470/32/26/315
R Twarock
Show affiliationsIn an earlier paper a q-Schrödinger equation was obtained based on a particular quantization procedure, called Borel quantization, and a related q-deformation of the Witt algebra. This q-deformation is a deformation in the category of Lie algebras and hence the corresponding q-Witt algebra has a trivial Hopf algebra structure. In this paper, we extend the above algebra by the addition of a set of shift-type generators, which appear in the expression for the quantum mechanical position operator and hence lead to a new type of quantum kinematics. The latter gives rise to a new kind of evolution equation and it is shown that in the limit q
1 a specific class of Schrödinger equations is obtained from it. This specification of a particular class is a new phenomenon, because in earlier references, where a different q-deformation has been implemented or no deformation has been used at all, such a class could not be determined uniquely. The extended algebra used here has a nontrivial Hopf structure. The appearance of the shift-type generator in the q-deformed picture hence leads to a selection of a particular type of dynamics and delivers in the limit q
1 new information for the characterization of the corresponding dynamics in the undeformed situation.
03.65.Ge Solutions of wave equations: bound states
81Rxx Groups and algebras in quantum theory
81Sxx General quantum mechanics and problems of quantization
11E81 Algebraic theory of quadratic forms; Witt groups and rings (See also 19G12, 19G24)
Issue 26 (2 July 1999)
Received 2 November 1998, in final form 25 January 1999
R Twarock 1999 J. Phys. A: Math. Gen. 32 4971
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