Certified quantum gates

• URL: http://arxiv.org/abs/2008.07493v1
• Date: Mon, 17 Aug 2020 17:36:51 GMT
• Title: Certified quantum gates
• Authors: Wesley C. Campbell
• Abstract summary: We present a strategy for developing quantum error detection for certain gate imperfections. Error detection can be used to certify individual gate operations against certain errors.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: High quality, fully-programmable quantum processors are available with small numbers (<1000) of qubits, and the scientific potential of these near term machines is not well understood. If the small number of physical qubits precludes practical quantum error correction, how can these error-susceptible processors be used to perform useful tasks? We present a strategy for developing quantum error detection for certain gate imperfections that utilizes additional internal states and does not require additional physical qubits. Examples for adding error detection are provided for a universal gate set in the trapped ion platform. Error detection can be used to certify individual gate operations against certain errors, and the irreversible nature of the detection allows a result of a complex computation to be checked at the end for error flags.

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