a trapped-atom quantum memory (PDF) - MIT
a trapped-atom quantum memory (PDF) - MIT
a trapped-atom quantum memory (PDF) - MIT
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QUANTUM STATE AFTER THE TRANSFER<br />
BEFORE TRANSFER<br />
|ψ 23 >={|a> 2 |b> 3 - |b> 2 |a> 3 }/√2<br />
|ϕ 1 > ={α|c> 1 +β|a> 1 }<br />
2<br />
3<br />
AFTER TRANSFER<br />
a<br />
c<br />
b<br />
d<br />
a<br />
c<br />
b<br />
d<br />
|ψ 1 > = |c> 1<br />
|φ 23 >={|A + >(α|b 3 >+β|a 3 >) +<br />
|A - >(α|b 3 >-β|a 3 >) +<br />
|B + >(β|b 3 >+α|a 3 >)+<br />
| B - >(-β|b 3 >+α|a 3 >)}/2<br />
a<br />
b<br />
BELL STATES<br />
c<br />
d<br />
|A ± >={|c 2 >±|b 2 >}/√2,<br />
|B ± >={|d 2 >±|a 2 >}/√2.<br />
1