Protecting information in a parametrically driven hybrid quantum system
arXiv:2207.14354 · doi:10.22331/q-2025-05-22-1754
Abstract
The transfer and storage of quantum information in a hybrid quantum system, consisting of an ensemble of atoms or spins interacting with a cavity, is adversely affected by the inhomogeneity of the spins, which negates the coherent exchange of excitations between the physical components. Using a full quantum treatment based on variational renormalization group, we show how quantum information encoded in the states of a parametrically driven hybrid system is strongly protected against any decoherence that may arise due to the inhomogeneity in the spin-ensemble.
Final version accepted in Quantum. 10 pages, 4 figures, 1 table. Appendix with simulation parameters and link to repository added