{ "id": "1512.04642", "version": "v1", "published": "2015-12-15T04:25:17.000Z", "updated": "2015-12-15T04:25:17.000Z", "title": "Superadiabatic Control of Quantum Operations", "authors": [ "Jonathan Vandermause", "Chandrasekhar Ramanathan" ], "comment": "9 pages", "categories": [ "quant-ph" ], "abstract": "Adiabatic pulses are used extensively to enable robust control of quantum operations. We introduce a new approach to adiabatic control that uses the superadiabatic quality or Q-factor as a performance metric to design robust, high fidelity pulses. Our approach permits the systematic design of quantum control schemes to maximize the adabaticity of a unitary operation in a given time interval, given the available control resources. We numerically examine the interplay between adiabaticity, fidelity and robustness of the resulting pulses for the case of single-qubit inversion, and demonstrate the improved robustness of superadiabatic pulses. We introduce a numerical search strategy to implement a broader class of adiabatic operations, including multi-qubit adiabatic uni- taries, and demonstrate the utility of the technique by designing control waveforms that adiabatically implement a two-qubit entangling gate for a model system.", "revisions": [ { "version": "v1", "updated": "2015-12-15T04:25:17.000Z" } ], "analyses": { "keywords": [ "quantum operations", "superadiabatic control", "high fidelity pulses", "quantum control schemes", "robust control" ], "note": { "typesetting": "TeX", "pages": 9, "language": "en", "license": "arXiv", "status": "editable" } } }