The paper of the month, chosen by the Editor-in-Chief, is "In-Plane Optical Anisotropy of -Oriented Asymmetrical Quantum Wells" by Djanelidze and E. Tsitsishvili;
Despite of the fact that the optical anisotropy in quantum wells has been investigated theoretically and experimentally for many years the authors present an interesting theoretical approach to calculating optical anisotropy in asymmetric quantum wells. The analysis starts from basic symmetry considerations that lead to the appearance of anisotropy caused by asymmetry of the quantum well. Next the formulated model is applied to the in-plane optical anisotropy of  zinc blende quantum wells. It is shown that the asymmetry should result in the mixing of light- and heavy hole states. The paper contributes to the understanding of the role of symmetry breaking in quantum wells.