Author/Authors :
Razmi، Habibollah نويسنده Department of Physics, The University of Qom, Qom 37185-359, I.R. Iran , , Mohammadi، Mohammad Reza نويسنده Department of Physics, Sistan and Baluchestan University, Zahedan 98135–674, I.R. Iran , , Abdollahi، Mahnaz نويسنده Department of Physics, The University of Qom, Qom 37185-359, I.R. Iran , , Fazeli، Seyed Mahdi نويسنده Department of Physics, The University of Qom, Qom 37185-359, I.R. Iran ,
Abstract :
We want to study the dynamics of a simple linear harmonic micro spring which is under the influence of the quantum Casimir force/pressure and thus behaves as a (an) nonlinear (anharmonic) Casimir oscillator. Generally, the equation of motion of this nonlinear micromechanical Casimir oscillator has no exact solvable (analytical) solution and the turning point(s) of the system has (have) no fixed position(s); however, for particular values of the stiffness of the micro spring and at appropriately well-chosen distance scales and conditions, there is (are) approximately sinusoidal solution(s) for the problem (the variable turning points are collected in a very small interval of positions). This, as a simple and elementary plan, may be useful in controlling the Casimir stiction problem in micromechanical devices.
