New SU(1,1) position-dependent effective mass coherent states for a generalized shifted harmonic oscillator

被引:10
|
作者
Yahiaoui, Sid-Ahmed [1 ]
Bentaiba, Mustapha [1 ]
机构
[1] Univ Saad, Fac Sci, DAHLAB Blida, Dept Phys,LPTHIRM, Blida 09000, Algeria
关键词
POTENTIALS; HAMILTONIANS; ALGEBRA; SU(2);
D O I
10.1088/1751-8113/47/2/025301
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
A new SU(1, 1) position-dependent effective mass coherent states (PDEM CS) related to the shifted harmonic oscillator (SHO) are deduced. This is accomplished by applying a similarity transformation to the generally deformed oscillator algebra (GDOA) generators for PDEM systems and a new set of operators that close the su(1, 1) Lie algebra are constructed, being the PDEM CS of the basis for its unitary irreducible representation. From the Lie algebra generators, we evaluate the uncertainty relationship for a position and momentum-like operators in the PDEM CS and show that it is minimized in the sense of Barut-Girardello CS. We prove that the deduced PDEM CS preserve the same analytical form than those of Glauber states. As an illustration of our procedure, we depicted the 2D-probability density in the PDEM CS for SHO with the explicit form of the mass distribution with no singularities.
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页数:13
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