Uses photons!
The key experiment/phenomena that sets the basis for photonic quantum computing is the two photon interference experiment.
The physical representation of the information encoding is very easy to understand:
- input: we choose to put or not photons into certain wires or no
- interaction: two wires pass very nearby at some point, and photons travelling on either of them can jump to the other one and interact with the other photons
- output: the probabilities that photos photons will go out through one wire or another
- https://youtube.com/watch?v=7wCBkAQYBZA&t=1285 shows an experimental curve for a two photon interference experiment by Hong, Ou, Mandel (1987)
- https://youtube.com/watch?v=7wCBkAQYBZA&t=1440 shows a KLM CNOT gate
- https://youtube.com/watch?v=7wCBkAQYBZA&t=2831 discusses the quantum error correction scheme for photonic QC based on the idea of the "Raussendorf unit cell"
- Quantum computer physical implementations | 49, 686, 6
- Quantum computing | 80, 1k, 22
- Computer | 136, 21k, 532
- Technology | 0, 33k, 758
- Ciro Santilli's Homepage | 238, 147k, 2k
- Photonic quantum computer | 178, 190, 1
- Quantum computer physical implementations | 49, 686, 6
- Quantum computers as experiments that are hard to predict outcomes | 218
- Quantum error correction | 96
- Spontaneous parametric down-conversion | 378
- Two photon interference experiment | 238
- Why it is hard to simulate quantum systems? | 67