Some QC implementation possibilities
NMR
- Use RF frequencies to excite resonances (spins) of a molecule
- State evolves under a time-dependent operator
- Measure resonances a precise time later
- Have done a few qbits successfully...
Cavity QED: Rydberg atoms in high-Q cavities
- Bound electrons are excited close to the continuum limit
- Have made 2-qbit systems...
SQUIDS
- Haven’t made a superposition state yet
- But can make many SQUIDS on a chip...