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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ROTATE SUPERPOSITION-BASIS BELL STATES INTO PURE-BASIS BELL STATES<br />
π/2 pulses<br />
a<br />
b<br />
a<br />
b<br />
c<br />
d<br />
c<br />
d<br />
2<br />
2<br />
OLD BELL STATES<br />
|A + >=|c 2 >+|b 2 ><br />
|A - >=|c 2 >-|b 2 ><br />
|B + >=|d 2 >+|a 2 ><br />
|B - >=|d 2 >-|a 2 >.<br />
NEW BELL STATES<br />
|a + >=|c 2 ><br />
|a - >=|b 2 ><br />
|b + >=|d 2 ><br />
|b - >=|a 2 >.