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Damping of a harmonic oscillator in a squeezed vacuum without rotating-wave approximation |
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| Authors: | SS Hassan OM Frege |
| Institution: | a Department of Mathematics, College of Science, University of Bahrain, P.O. Box 32038, Bahrain b Department of Physics, University of Arkansas, Fayetteville, AR 72701, USA c Ain Shams University, Faculty of Education, Mathematics Department, Cairo, Egypt d Ain Shams University, Faculty of Science, Mathematics Department, Cairo, Egypt |
| Abstract: | A single harmonic oscillator interacting with a broadband squeezed reservoir is analyzed within the framework of master equation without invoking the rotating-wave approximation. The dynamical evolution and photon statistics of the system are investigated by studying mean photon number and second order intensity-intensity correlation function, respectively, under resonance condition which show transient oscillations at twice the harmonic oscillator frequency. The transient fluorescent spectrum reveals asymmetric features. Inclusion of vacuum and field-dependent frequency shifts affects the thermal equilibrium value of the average photon number of the harmonic oscillator. |
| Keywords: | Damped harmonic oscillator Squeezed vacuum field Rotating-wave approximation Photon statistics |
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