Keeping single-qubit quantum coherence above some threshold value not far below unity is a prerequisite for fault-tolerant quantum error correction (QEC). We study the initial dephasing of solidstate qubits in the independent-boson model, which describes well recent experiments on quantum dot (QD) excitons both in bulk and in substrates of reduced geometry such as nanotubes. Using explicit expr...

Quantum information is vulnerable to environmental noise and experimental imperfections, hindering the reliability of practical quantum processors. Therefore, error correction (QEC) that can protect against vital for universal scalable computation. Among many different platforms, superconducting circuits bosonic encodings in microwave modes are appealing their unprecedented potential QEC. Durin...

MSME Gatot Kaca is an that processing fish into crackers. In this cracker packaging activity, workers experience pain because of bad work posture. The purpose study to design ergonomic table and chairs reduce musculoskeletal disorders (MSD’s). NBM questionnaire used find out which parts the body are felt by workers. Comparing risk value postures using QEC RULA method. results showed operators i...

This report contains the comprehensive explanation of some most important quantum error correction codes. After the brief corroboration of the quantum mechanical principles that govern any quantum mechanical process, we introduce stabilizer formalism and stabilizer codes for quantum error correction (QEC). As an interesting derivative from classical counterpart we also present Quantum Reed Mull...

For the daily QA of the energy scanning delivery, quick and easy range verification system is required. In this work, we have developed range verification system using scintillator and CCD (charge-coupled device) camera. From the comparison of the several methods, edge detection method is best for range detection. Accuracy of range detection for the system is within the 0.2 mm. Reproducibility ...