All articles tagged with #majorana zero modes
Microsoft researchers demonstrated a prototype tetron qubit capable of performing two distinct quantum measurements with significantly different lifetimes, supporting progress toward topological quantum computing, though further validation and improvements are needed to confirm topological behavior and reduce error rates.
Microsoft Quantum researchers have achieved a first milestone toward creating a reliable and practical quantum computer by engineering a new way to represent a logical qubit with hardware stability. The device can reportedly induce a phase of matter characterized by Majorana zero modes, and has demonstrated low enough disorder to pass the topological gap protocol, proving the technology is viable. Microsoft has also created a new measure to gauge the performance of a quantum supercomputer: reliable quantum operations per second (rQOPS), with a minimum requirement of 1 million rQOPS for a machine to qualify as a quantum supercomputer.
Researchers have detected and manipulated quantum anomalous vortices (QAVs) in the iron-based superconductor Fe(Se,Te) that form in the absence of a magnetic field and could theoretically support non-Abelian anyons known as Majorana zero modes. QAVs are formed by isolated magnetic impurities inserted into the superconductor that break the material’s time-reversal symmetry and locally suppress the strength of the electron-pairing interaction responsible for superconductivity. The members of a QAV-antivortex pair have opposite vorticities such that they do not repel each other, unlike the Abrikosov vortices seen in conventional superconductors.