Quantum Optical Realization of Arbitrary Linear Transformation Allowing for Loss and Gain Posted by Karolina Słowik on April 20, 2018August 13, 2019 The article is now published in PRX Nora Tischler, Carsten Rockstuhl & Karolina Słowik Phys. Rev. X 8, 021017 (2018) arxiv.org/abs/1712.01413