Error-Mitigated Quantum Routing on Noisy Devices
arXiv:2305.13574 · doi:10.1109/GLOBECOM54140.2023.10437807
Abstract
With sub-threshold quantum error correction on quantum hardware still out of reach, quantum error mitigation methods are currently deemed an attractive option for implementing certain applications on near-term noisy quantum devices. One such application is quantum routing - the ability to map an incoming quantum signal into a superposition of paths. In this work, we use a 7-qubit IBM quantum device to experimentally deploy two promising quantum error mitigation methods, Zero-Noise Extrapolation (ZNE) and Probabilistic Error Cancellation (PEC), in the context of quantum routing. Importantly, beyond investigating the improved performance of quantum routing via ZNE and PEC separately, we also investigate the routing performance provided by the concatenation of these two error-mitigation methods. Our experimental results demonstrate that such concatenation leads a very significant performance improvement relative to implementation with no error mitigation. Indeed, an almost perfect performance in terms of fidelity of the output entangled paths is found. These new results reveal that with concatenated quantum error-mitigation embedded, useful quantum routing becomes feasible on current devices without the need for quantum error correction - opening up a potential implementation pathway to other applications that utilize a superposition of communication links.
References in corpus (17)
- Quantum Computing in the NISQ era and beyond
- Error mitigation for short-depth quantum circuits
- Quantum random access memory
- Quantum Error Mitigation
- Quantum transduction of optical photons from a superconducting qubit
- Digital zero noise extrapolation for quantum error mitigation
- On the robustness of bucket brigade quantum RAM
- Fault tolerant resource estimation of quantum random-access memories
- Unified approach to data-driven quantum error mitigation
- Resource-efficient linear-optical quantum router
- Experimental demonstration of a quantum router
- Designing Quantum Router in IBM Quantum Computer
- Linear-optical programmable quantum router
- Testing platform-independent quantum error mitigation on noisy quantum computers
- Superposed Quantum Error Mitigation
- Implementation of an efficient linear-optical quantum router
- Detection of temporal fluctuation in superconducting qubits for quantum error mitigation