Wigner Function as a Detector of Entanglement in Open Two Coupled InAs Semiconductor Quantum Dots

We tested the ability of Wigner function to reveal and capture the quantum entanglement presents in two coupled semiconductor InAs quantum dots that independently interact with dephasing reservoirs. In this respect, we analyze their evolution against the temperature parameter as well as against the dimensionless time in both Markovian and non-Markovian environments. Further, we compare their amounts and their behaviors under the Forster interaction effect. In particular, we show that for large values of dimensionless time and at higher temperature, unlike the full disappear of entanglement the positive part of Wigner function still survives. Moreover, we show that the Wigner function volume is influenced by the variation of the Forster interaction, the temperature and the non-Markovianity degree. Nevertheless, its ability to reveal the quantum entanglement presents inside two coupled semiconductor quantum dots is still kept.