Year: 2015
Type: article
Abstract: A proposal for a phase gate and a Mølmer–Sørensen gate in the dressed state basis is presented. In order to perform the multi-qubit interaction, a strong magnetic field gradient is required to couple the phonon-bus to the qubit states. The gate is performed using resonant microwave driving fields together with either a radio-frequency (RF) driving field, or additional detuned microwave driving fields. The gate is robust to ambient magnetic field fluctuations due to an applied resonant microwave driving field. Furthermore, the gate is robust to fluctuations in the microwave Rabi frequency and is decoupled from phonon dephasing due to a resonant RF or a detuned microwave driving field. This makes this new gate an attractive candidate for the implementation of high-fidelity microwave based multi-qubit gates. The proposal can also be realized in laser-based set-ups.
Source: New Journal of Physics
Authors: I Cohen, S Weidt, W K Hensinger, A Retzker
Institutions: Hebrew University of Jerusalem, University of Sussex
Language: English
Subfield: Artificial Intelligence
Field: Computer Science
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,610
Awards: Quantum technology with nanofabricated ion trap chips, G1110067208, Integrated Quantum Information Technology, G1716306686, G2364852334, G2482130485, UK Quantum Technology Hub: NQIT - Networked Quantum Information Technologies, G3207356259, G3919924709, G393177772, G4763771321, G5259331294, G5702163051, G5878972985, G7452299184, G7496349667, G8960705998
OpenAlex ID: W1993487411