MatSciEd · Quantum

Interactive modules on quantum computing and quantum sensing. Everything runs in the browser, nothing to install.

For high school

1. From a Bit to a Qubit
   Switches, coins, the qubit as an arrow, why looking changes it, turning it, and the hidden direction. Try-at-home experiments and teacher notes included.
2. Finding an Answer with Waves
   Waves add and cancel, two roads to one detector, scores for every pattern, and the four-box search in one try.
3. A Qubit as a Sensor
   A field turns the arrow like a clock hand, the stopwatch experiment, beating randomness by counting, and where quantum sensors are already in use.

For undergraduates

1. How Many Bits Fit in a Qubit?
   Starts from binary, walks a dial from two positions to a continuum, and answers the title question honestly.
2. Why a Qubit Forgets
   Decoherence. Neighbours, the wobbling clock, one flipping neighbour, the bell curve, motional narrowing, T₁ and T₂, the echo, sweet spots, three platforms.

For engineers

1. Bits, Qubits, and Phase
   Phasors, polarization, truth tables, gates as rotations, the Mach–Zehnder circuit, entanglement, Grover, Ramsey sensing.

The companion Jupyter notebook lives in notebooks/.