We attempt to demonstrate optical phase switches in a typical light storage experiment. We
computed propagation dynamics of light pulses in sodium-23, rubidium-87, and potassium-
39 vapors. These vapors have the same tensorial sets of the density matrix with a nuclear
spin I= 3/2. The energy scheme is known as the double-Λ system. We considered an
excitation mechanism in which one of two Λ systems was excited by two-color pulses, probe,
and drive, following the standard electromagnetically induced transparency configuration …

We attempt to demonstrate optical phase switches in a typical light storage experiment. We
computed propagation dynamics of light pulses in sodium-23, rubidium-87, and potassium-
39 vapors. These vapors have the same tensorial sets of the density matrix with a nuclear
spin I= 3/2. The energy scheme is known as the double-A system. We considered an
excitation mechanism in which one of two A systems was excited by two-color pulses, probe,
and drive, following the standard electromagnetically induced transparency configuration …