Quantum Metrology: Measuring at the Heisenberg Limit
Quantum metrology uses entanglement and squeezing to push measurement precision from the shot-noise limit toward the Heisenberg limit.
BasicsAlgorithmsHardwareError CorrectionCryptographyMachine LearningInformation TheoryPhysics & SimulationApplicationsIndustry & Careers
All Articles
Every explainer on QuantumExplainer.com, newest first. Use the pillars above to jump straight to a topic.
739 articles
Quantum-Enhanced Imaging Beyond Classical Limits
Quantum imaging uses entangled or squeezed light to detect fainter signals and resolve finer detail than classical methods allow.
Quantum Algorithm Design: Patterns That Recur
Recurring patterns in quantum algorithm design: oracles, amplitude amplification, the Fourier transform and error correction constraints.
Quantum Sensor Networks and Distributed Sensing
Quantum sensor networks link several quantum sensors, sometimes with entanglement, to measure more precisely. Principles and applications.
Quantum Artificial Intelligence: The Honest Picture
An honest picture of quantum artificial intelligence: what quantum machine learning can do today, the hardware limits and open problems.
Quantum Randomness Expansion From a Small Seed
Randomness expansion uses a short random seed and entangled devices to certify a longer string of true random bits. How and why it works.
Quantum Cryptographic Primitives and What They Build
The basic building blocks of quantum cryptography: QKD, quantum random number generators, protocols, secure computation and known attacks.
Quantum Cloud Platforms: IBM, AWS and Azure
The main quantum cloud platforms compared, including IBM Quantum, Amazon Braket and Azure Quantum: what they offer, costs and limitations.
Quantum Networking: Links, Nodes and Repeaters
How quantum networks link nodes with entanglement and repeaters, how QKD and teleportation work over them, and why no signal beats light.
Quantum Software Engineering: Tools and Practice
Quantum software engineering: SDKs, development workflows, algorithms and error correction, and how building quantum programs differs.
Quantum Internet Protocols: The Emerging Stack
The emerging protocol stack of the quantum internet: entanglement distribution, repeaters, teleportation, QKD and network error correction.
Quantum Computation in Complex Systems Research
How quantum computation is applied to complex systems research, from simulation and machine learning to cryptography, biology and finance.