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Quantum vibrational resonance in a dual-frequency driven Tietz-Hua quantum well

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Article number052216
<mark>Journal publication date</mark>28/05/2020
<mark>Journal</mark>Physical Review E
Number of pages10
Publication StatusPublished
<mark>Original language</mark>English


We investigate the response of a quantum particle in the Tietz-Hua quantum potential driven by biharmonic fields – a low and a very high frequency force. The response is characterized by the occurrence of a maximum in the first-order transition probability amplitude, |s|2 , under the influence of the applied fields. It is shown that in the absence of the high-frequency component of the applied fields, |s|2 shows a distinct sequence of resonances; whereas an increase in the amplitude of the high-frequency field induces minima in |s|2. However, the |s|2 maximum occurs in the low-frequency regime where it may be considered otherwise weak in the presence of a single harmonic force.