@article {2009.01982, archivePrefix = {arXiv}, eprint = {2009.01982}, primaryClass = {quant-ph}, author = {Casey Duckering and Jonathan M. Baker and David I. Schuster and Frederic T. Chong}, title = {Virtualized Logical Qubits: A 2.5D Architecture for Error-Corrected Quantum Computing}, year = {2020}, url = {http://arxiv.org/abs/2009.01982} }