Microsoft announced Majorana 2, the new generation topological quantum chip. According to the data shared by the company, the qubits in the new chip work 1,000 times more reliable than the previous generation.

While the average qubit lifetime in Majorana 2 exceeded 20 seconds, the quantum state was preserved for up to a minute in some measurements. With this development, Microsoft pushed the scalable quantum computer calendar to 2029.

New material structure and performance increase

Microsoft’s new step on the quantum hardware side was Majorana 2, built on Majorana 1. The company replaced the aluminum-based superconducting structure used in the first generation with lead in the new chip.

In the semiconductor active region, a combination of indium arsenide and indium arsenide antimonide was used. This change ensured more stable operation of the topological phase.

According to the information shared by the Microsoft Quantum team, the new material structure has more than doubled the topological gap that protects the topological qubits against environmental noise and errors compared to the previous generation. This material update is at the heart of the performance increase in Majorana 2.

In Majorana 1, the qubit lifetime in the aluminum-based structure ranged from 1 to 12 milliseconds. In Majorana 2, the average lifespan increased to over 20 seconds.

Microsoft announced that in some examples, qubits maintain their quantum state for up to a minute. The company attributed this difference to a more than 1,000-fold increase on the reliability side.

In Majorana 2, operations occur on a microsecond scale. The qubit size is one hundredth of a millimeter.

Artificial intelligence-based development process

Microsoft benefited from the Microsoft Discovery platform during the development process of Majorana 2. Artificial intelligence spies, which the company calls agentic AI, were used in areas such as managing production processes and automating measurements.

The Microsoft Quantum team’s data spanning years were analyzed by artificial intelligence spies working on Discovery. The company stated that information from different disciplines is reprocessed with correlations that a single researcher cannot see manually.

The measurement side is one of the most complex stages in the quantum computer development process. Creating the topological state in Majorana 2 requires setting hundreds of parameters.

Special spies prepared on Discovery ran measurement cycles automatically and managed multiple voltage settings in parallel. The system automatically scanned the working conditions and created three-dimensional maps.

The Microsoft Discovery platform is now generally available for organizations working in Frontier R&D. The company also released the Microsoft Discovery application as a preview.

The application is offered to individuals who want to use the basic capabilities of the platform on a local computer. Microsoft also updated its scalable quantum computer calendar with Majorana 2.

The company halved the previous timeline and pointed to 2029. This timetable was announced for the development of a quantum computer that is defect tolerant and has commercial use.

Majorana 2 also works in conjunction with the quantum evaluation process that Microsoft carries out with DARPA. In this process, Microsoft is working on a topological qubit-based defect-tolerant prototype.

Microsoft’s statement stated that quantum computers can be used in areas such as global health, food supply, sustainability and power generation. Do you think Microsoft’s 2029 target is a realistic timetable for quantum technologies?