2021/09/30 by Kevin C. Cox, Cox, Kevin C., Przemyslaw Bienias +9
Physics and Astronomy · #Atomic Physics (physics.atom-ph) #FOS: Physical sciences #Quantum Physics (quant-ph) #physics.atom-ph #quant-ph
paper · pdf · doi:10.48550/arxiv.2109.15252
6 pages, 3 figures. Supplemental material included in source
arxiv created 2021/09/30 · arxiv updated 2021/10/01
We present a method for network-capable quantum computing that relies on holographic spin-wave excitations stored collectively in ensembles of qubits. We construct an orthogonal basis of spin waves in a one-dimensional array and show that high-fidelity universal linear controllability can be achieved using only phase shifts, applied in both momentum and position space. Neither single-site addressability nor high single-qubit cooperativity is required, and the spin waves can be read out with high efficiency into a single cavity mode for quantum computing and networking applications.