Tagged: Topological Qubits

19 articles

Topological Quantum Codes: Protection by Geometry

7 min read

Topological quantum codes store information in global properties of a lattice, following Kitaev’s work. Key concepts, implementations and challenges.

13 min read

Quantum error correction codes and methods: error sources, syndrome measurement, Shor and Steane codes, topological codes and fault tolerance.

24 min read

How quantum computers work: qubits, superposition, interference, entanglement, gates and circuits, algorithms, and the problem of decoherence.

10 min read

Quantum error correction codes compared: stabilizer, surface, toric, Bacon-Shor, color and LDPC codes, cat qubits and topological protection.

27 min read

Quantum error correction strategies explained: bit-flip and phase-flip codes, stabilizers, concatenated codes, surface codes and fault tolerance.

19 min read

Microsoft’s quantum strategy: Azure Quantum, the bet on topological qubits, the roadmap to a fault-tolerant machine and the Photonic partnership.

20 min read

A qubit is the basic unit of quantum information. Its states on the Bloch sphere, physical implementations, fragility and the topological approach.