Construction of robust Rydberg controlled-phase gates

Abstract

One scheme is presented to construct the robust multi-qubit arbitrary-phase controlled-phase gate (CPG) with one control and multiple target qubits in Rydberg atoms using the Lewis-Riesenfeld (LR) invariant method. The scheme is not limited by adiabatic condition while preserves the robustness against control parameter variations of adiabatic evolution. Comparing with the adiabatic case, our scheme does not require very strong Rydberg interaction strength. Taking the construction of two-qubit $\pi$ CPG as an example, our scheme is more robust against control parameter variations than non-adiabatic scheme and faster than adiabatic scheme.

arXiv comment5 pages,2 figures

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• Optimized Geometric Quantum Computation with mesoscopic ensemble of Rydberg Atoms
• Nonadiabatic noncyclic geometric quantum computation in Rydberg atoms
• Optimizing Rydberg Gates for Logical Qubit Performance
• Resilient quantum gates on periodically driven Rydberg atoms
• Suppress motional dephasing of ground-Rydberg transition for high-fidelity quantum control with neutral atoms
• Doppler-resilient ground-Rydberg transition and its application in high-fidelity entangling gates with neutral atoms
• Effective Rabi dynamics of Rydberg atoms and robust high-fidelity quantum gates with a resonant amplitude-modulation field
• Composite Short-path Nonadiabatic Holonomic Quantum Gates
• Universal speeded-up adiabatic geometric quantum computation in three-level systems via counterdiabatic driving
• Unselective ground-state blockade of Rydberg atoms for implementing quantum gates
• Speed-up Quantum Perceptron via Shortcuts to Adiabaticity
• Single-site Rydberg addressing in 3D atomic arrays for quantum computing with neutral atoms
• State-independent Nonadiabatic Geometric Quantum Gates
• Shortcut-to-Adiabatic Controlled-Phase Gate in Rydberg Atoms
• Berry-phase-based quantum gates assisted by transitionless quantum driving
• High-fidelity and robust controlled-Z gates implemented with Rydberg atoms via echoing rapid adiabatic passage
• Time-Optimal Two- and Three-Qubit Gates for Rydberg Atoms