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We investigate the generation of entanglement through a quantum dot moleculeunder the influence of vibrational phonon modes in a bias voltage junction. Themolecular quantum dot system is realized by coupled quantum dots inside asuspended carbon nanotube. We consider the dynamical entanglement as a functionof bias voltage and temperature by taking into account the electron-phononinteraction. In order to generate the robust entanglement between quantum dotsand preserve it to reach the maximal achievable amount steadily, we introducean asymmetric coupling protocol and apply the easy tunable bias voltage-drivenfield. For an oscillating bias voltage, the time-varying entanglement canperiodically reach the maximum revival. In thermal entanglement dynamics, thephenomena of thermal entanglement degradation and thermal entanglement revivalare observed which are intensively affected by the strength of phonondecoherence. The revival of entanglement shows a larger value for a higherphonon coupling.

Generation of entanglement between quantum dot molecule with the presence of phonon effects in a voltage-controlled junction