Slow light in semiconductor quantum dots: Effects of non-Markovianity and correlation of dephasing reservoirs
Abstract
A theoretical investigation on slow light propagation based on electromagnetically induced transparency in a three-level quantum-dot system is performed including non-Markovian effects and correlated dephasing reservoirs. It is demonstrated that the non-Markovian nature of the process is quite essential even for conventional dephasing typical of quantum dots leading to significant enhancement or inhibition of the group velocity slow-down factor as well as to the shifting and distortion of the transmission window. Furthermore, the correlation between dephasing reservoirs may also either enhance or inhibit non-Markovian effects.
- Publication:
-
Physical Review B
- Pub Date:
- December 2015
- DOI:
- 10.1103/PhysRevB.92.235446
- Bibcode:
- 2015PhRvB..92w5446M
- Keywords:
-
- 42.50.Gy;
- 42.50.Nn;
- 42.50.Ar;
- 78.67.Hc;
- Effects of atomic coherence on propagation absorption and amplification of light;
- electromagnetically induced transparency and absorption;
- Quantum optical phenomena in absorbing dispersive and conducting media;
- Photon statistics and coherence theory;
- Quantum dots