Abstract
In the spirit of geometric quantisation we consider representations of the Heisenberg(–Weyl) group induced by hypercomplex characters of its centre. This allows to gather under the same framework, called p-mechanics, the three principal cases: quantum mechanics (elliptic character), hyperbolic mechanics and classical mechanics (parabolic character). In each case we recover the corresponding dynamic equation as well as rules for addition of probabilities. Notably, we are able to obtain whole classical mechanics without any kind of semiclassical limit ħ→0.
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Acknowledgements
I am grateful to A.Yu. Khrennikov and S. Ulrych for useful discussion on relation between double numbers and physics. S. Plaksa advised me on various aspect of commutative hypercomplex algebras. U. Güenther draw my attention to the connection between \(\mathcal{P}\mathcal{T}\)-symmetric Hamiltonians and Krein spaces. Prof. N.A. Gromov made several useful suggestions of methodological nature. Constructive comments of anonymous referees provided further ground for paper’s improvement.
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Dedicated to the memory of V.I. Arnold
On leave from the Odessa University.
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Kisil, V.V. Hypercomplex Representations of the Heisenberg Group and Mechanics. Int J Theor Phys 51, 964–984 (2012). https://doi.org/10.1007/s10773-011-0970-0
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DOI: https://doi.org/10.1007/s10773-011-0970-0
Keywords
- Heisenberg group
- Kirillov’s method of orbits
- Geometric quantisation
- Quantum mechanics
- Classical mechanics
- Planck constant
- Dual numbers
- Double numbers
- Hypercomplex
- Jet spaces
- Hyperbolic mechanics
- Interference
- Segal–Bargmann representation
- Schrödinger representation
- Dynamics equation
- Harmonic and unharmonic oscillator
- Contextual probability
- \(\mathcal{P}\mathcal{T}\)-symmetric Hamiltonian