Quantum Noise Simulation: Modelling Real Hardware
How noise in real quantum hardware is modeled and simulated, from noise channels to device-specific models, and how this guides error correction.
BasicsAlgorithmsHardwareError CorrectionCryptographyMachine LearningInformation TheoryPhysics & SimulationApplicationsIndustry & Careers
Tagged: Fault Tolerance
63 articles
Quantum Depolarizing Channels: The Standard Noise
The depolarizing channel replaces a state with the maximally mixed state with some probability. Its representation, properties and uses as a noise model.
Google’s Quantum Programme: Results and Claims
Google’s quantum program: the 2019 Sycamore supremacy result, later processors, error correction milestones and what the claims mean.
Quantum Zero-Error Capacity and Perfect Transmission
Zero-error capacity asks how much information a channel can send with no errors at all. How quantum effects and entanglement change the answer.
The Quantum Hamming Bound on Code Parameters
The quantum Hamming bound limits the parameters of non-degenerate quantum codes. Its derivation, examples and implications for code design.
Quantum Error Correction: The Information View
Quantum error correction from an information theory perspective: codes, detection and correction, limits and the road to fault tolerance.
Error-Correcting Codes in Quantum Cryptography
How error-correcting codes are used in quantum cryptography, from reconciliation in QKD to codes that protect quantum states.
Quantum Error-Correcting Codes: A Catalogue
A catalogue of quantum error-correcting codes: principles, types, detection and correction mechanisms, implementation challenges and uses.
Models of Quantum Computation, Compared
The main models of quantum computation compared: circuits, adiabatic, measurement-based and topological, with their hardware and limits.
The Threshold Theorem: When Correction Wins
The threshold theorem shows that error correction beats error accumulation below a certain physical error rate. Codes, estimates and experiments.
Topological Quantum Computing: Braids as Gates
Topological quantum computing would perform gates by braiding anyons. The theory, error resistance, challenges and state of the experiments.
Measurement-Based Quantum Computing Explained
Measurement-based quantum computing performs computation through measurements on an entangled cluster state. How it compares with gate models.
