Tutorial: Quantum Information & Cold Atoms
Tutorial: Quantum Information & Cold Atoms
Tutorial: Quantum Information & Cold Atoms
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"Dipole blockade"<br />
• atomic configuration<br />
Atom 1 Atom 2<br />
|r1<br />
1<br />
|11<br />
qubit<br />
|01<br />
Vdip u<br />
laser laser<br />
|1 2<br />
qubit<br />
|0 2<br />
2<br />
|r 2<br />
• dipole blockade<br />
2<br />
| r0〉<br />
| 0r〉<br />
1<br />
| rr〉<br />
| 00〉<br />
Vdip u<br />
Large dipole-dipole<br />
interaction shifts level<br />
off resonance:<br />
No double excitation -<br />
no force!<br />
24
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