Simulated Stabilizer Measurement Error-Mitigation Protocol for Quantum Computing

Quantum computing is the pioneering field of using quantum mechanical phenomena like superposition and entanglement to create new types of computers. Despite its promise, one of the main challenges in this field is compensating for quantum errors that occur because of various sources, hampering the computation process and incurring substantial hardware requirements. Quantum error-correction methods traditionally relied on state readouts or state tomography. These techniques, while useful, are resource-intensive and slow down the overall computational process. These problems are substantial limitations in a field where the speed and efficiency of computation is paramount. Therefore, the need exists for more efficient methods of quantum error mitigation that require less hardware support while maintaining performance.

Technology Description

This technology offers systems and methods for performing open-loop quantum error mitigation by using quantum measurement emulations. Unlike traditional quantum error-mitigation methods, they do not necessitate state readouts or state tomography, thus leading to lower hardware requirements. The technology instead employs an error-mitigation apparatus that, at specified moments during a quantum computational process, stochastically applies a quantum gate to a qubit or a group of qubits. The standout characteristic of this technology is the stochastic application of a quantum gate, which projects the quantum state of the influenced qubits onto an axis. This process effectively reduces the trace distance between the current quantum state and the desired quantum state. By reducing this distance, the technology increases the overall speed of quantum computations, amounting to a more efficient and performance-optimized quantum computing methodology.