TY - RPRT TI - Quantum superpositions generated by quantum nondemolition measurements. AU - B Yurke AU - W Schleich AU - DF Walls PY - 1990 DO - 10.1103/physreva.42.1703 UR - https://pubmed.ncbi.nlm.nih.gov/9904203/ ID - 9904203 ER -