Atomic Physics Seminars

Quantum computing harnesses purely non-classical features of quantum physics to perform computations that would be otherwise infeasible on a traditional (classical) computer. Highly squeezed states are a crucial resource for many quantum technologies, primarily fault tolerant quantum computing. As with any quantum resource, squeezing is very fragile and arduous to generate experimentally. Because of this, the 20.5 dB squeezing level germane to the fault tolerance threshold (for an error rate of 0.00001) of continuous variable (CV) quantum computing has yet to be obtained, despite recent progress. I propose an experimental method designed to breach this threshold by unitarily redistributing multitudinous-mode squeezing into a highly squeezed single qumode (the CV analog of a qubit, or quantum bit). This new paradigm utilizes multi-mode states as a squeezing resource, by effectively transferring small levels of squeezing per qumode over N modes into a single qumode with N-times the squeezing.