According to our work, we assert that the dynamics of electromagnetically induced transparency in lambda type atomic system by taking the basics in line with the quantum mechanical aspects. We wonder that incorporating the condition for electromagnetically induced transparency to happen is a meaningful arm to generating a conclusion for a considerable quantum optical system; lambda type atomic system. In this work, mainly quantum interference of light generated from an atomic system has been studied significantly. Accordingly, the mathematical result shows that the quantum interference is due to spontaneous decay rate of the atom from the upper energy state to two ground energy states and sufficiently affects the transparency of the medium. To have such transparency we must have initially the atom in the upper physical state.
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