Minimal areas from q-deformed oscillator algebras

被引:23
作者
Fring, Andreas [1 ]
Gouba, Laure [2 ]
Bagchi, Bijan [3 ]
机构
[1] City Univ London, Ctr Math Sci, London EC1V 0HB, England
[2] Natl Inst Theoret Phys NITheP, ZA-7600 Stellenbosch, South Africa
[3] Univ Calcutta, Dept Appl Math, Kolkata 700009, India
基金
新加坡国家研究基金会;
关键词
UNCERTAINTY RELATION; FIELD-THEORY; QUANTUM; LENGTH;
D O I
10.1088/1751-8113/43/42/425202
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
On the basis of various examples we provide evidence that noncommutative spacetime involving position-dependent structure constants will give rise to deformed oscillator algebras. In turn, starting from some q-deformations of these algebras in a two-dimensional space for which the entire deformed Fock space can be constructed explicitly, we derive the commutation relations for the dynamical variables in noncommutative spacetime. We compute minimal areas resulting from these relations, i.e. finitely extended regions for which it is impossible to resolve any substructure in form of measurable knowledge. The size of the regions we find is determined by the noncommutative constant and the deformation parameter q. Any object in this type of spacetime structure has to be of membrane type or in certain limits of string type.
引用
收藏
页数:13
相关论文
共 50 条