Quantum: free course

Qubits, quantum computers and Q-Day. The quantum world without formulas · Qubits, hands-on · Algorithms · Hardware in 2026 · Quantum and your money

1. The quantum world without formulas

What a quantum is, superposition, measurement, entanglement and where quantum physics already works around you.

• What a quantum is
• Superposition without myths
• Measurement changes everything
• Entanglement
• The quantum in your pocket

2. Qubits, hands-on

Bits and qubits, the Bloch sphere, the X, H and CNOT gates, interference and the big “tries everything at once” myth.

• Bits and qubits
• The X, H and Z gates
• Two qubits: CNOT and entanglement
• Interference: the main trick
• The “tries everything at once” myth

3. Algorithms

Grover and search, Shor and breaking RSA, simulating molecules and the honest line between real use and hype.

• Grover’s algorithm: quantum search
• Shor’s algorithm and RSA
• Simulating molecules
• Hype versus value

4. Hardware in 2026

Superconductors, ions, atoms, photons and Majorana, noise and error correction, logical qubits and an honest map of the race.

• Superconductors: Google and IBM
• Ions and neutral atoms
• Photons, Majorana and silicon
• Noise and error correction
• The race map: how to read the news

5. Quantum and your money

Q-Day and crypto, post-quantum protection, quantum stocks without the hype, careers in quantum and what to expect by 2030.

• Q-Day and your crypto
• Post-quantum cryptography
• Quantum stocks without illusions
• Careers and the outlook to 2030

Is the course free?

Yes. All lessons are free, and the first one opens without signing up. A free account only saves your progress.