Abstract:Isotropic oscillator on a plane is discussed where both the coordinate and momentum space are considered to be noncommutative. We also discuss the symmetry properties of the oscillator for three separate cases when both the noncommutative parameters Θ and Θ satisfy specific relations. We compare the Landau problem with the isotropic oscillator on noncommutative space and obtain a relation between the two noncommutative parameters with the magnetic field of the Landau problem.
“…One can see that this Hamiltonian mimics the ordinary Landau problem, apart from a correction on the Larmor frequency. The noncommutative extension of the Landau system has been studied extensively [46][47][48][49][50][51][52][53][54]. However, so far the charge-tomass ratio related physics have not been studied.…”
Section: Noncommutative Corrections On Cyclotron Frequencymentioning
The publication of this article was funded by SCOAP 3 .Based on recent measurements on the charge-to-mass ratios of proton and antiproton, we study constraints on the parameters of noncommutative phase space. We find that while the limit on the parameter of coordinate noncommutativity is weak, it is very strong on the parameter of momentum noncommutativity, √ ≲ 1 eV. Therefore, the charge-to-mass ratio experiment has a strong sensitivity on the momentum noncommutativity, and enhancement of future experimental achievement can further pin down the momentum noncommutativity.
“…One can see that this Hamiltonian mimics the ordinary Landau problem, apart from a correction on the Larmor frequency. The noncommutative extension of the Landau system has been studied extensively [46][47][48][49][50][51][52][53][54]. However, so far the charge-tomass ratio related physics have not been studied.…”
Section: Noncommutative Corrections On Cyclotron Frequencymentioning
The publication of this article was funded by SCOAP 3 .Based on recent measurements on the charge-to-mass ratios of proton and antiproton, we study constraints on the parameters of noncommutative phase space. We find that while the limit on the parameter of coordinate noncommutativity is weak, it is very strong on the parameter of momentum noncommutativity, √ ≲ 1 eV. Therefore, the charge-to-mass ratio experiment has a strong sensitivity on the momentum noncommutativity, and enhancement of future experimental achievement can further pin down the momentum noncommutativity.
“…3,4 Moreover, the relation between noncommutativity and the magnetic field has been shown in various other works. 4,17,18 There is a well-known relation between a constant noncommutativity parameter and constant magnetic field that is mentioned in most of these references which is θ = 1/B. But it is important to notice that this relation is not always true, specially when one deals with non-unitary transformations and nonconstant noncommutativity parameter, this parameter and magnetic field can be related differently.…”
We study the two-dimensional harmonic oscillator on a noncommutative plane. We show that by introducing appropriate Bopp shifts, one can obtain the Hamiltonian of a twodimensional harmonic oscillator on a sphere according to the Higgs model. By calculating the commutation relations, we show that this noncommutativity is strictly dependent on the curvature of the background space. In other words, we introduce a kind of duality between noncommutativity and curvature by introducing noncommutativity parameters as functions of curvature. Also, it is shown that the physical realization of such model is a charged harmonic oscillator in the presence of electromagnetic field.
“…Harmonic oscillator was intensively studied in the frame of noncommutative algebra [34,35,36,37,38,39,40,41,42,43,44,45,46,47,48]. Recently experiments with micro-and nano-oscillators were implemented for probing minimal length [49].…”
We consider a quantum space with rotationally invariant noncommutative algebra of coordinates and momenta. The algebra contains tensors of noncommutativity constructed involving additional coordinates and momenta. In the rotationally invariant noncommutative phase space harmonic oscillator chain is studied. We obtain that noncommutativity affects on the frequencies of the system. In the case of a chain of particles with harmonic oscillator interaction we conclude that because of momentum noncommutativity the spectrum of the center-of-mass of the system is discrete and corresponds to the spectrum of harmonic oscillator.
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