a trapped-atom quantum memory (PDF) - MIT

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TRANSFERRING TWO BITS INTO A SINGLE ATOM VIA CAVITY QED 1 ATOM A α 1 ATOM B 1 1 ATOM A 0 ATOM B 0 β 1 α 2 0 β 2 0 1 α 1 0 β 1 0 g g Ω 1 Ω 2 α 2 β 2 e n 0 0 Ω 1 Ω 2 0 0 g g 1 0 e n α 1 α 2 α 1 β 2 β 1 β 2
ADIABATIC COHERENCE TRANSFER VIA CAVITY-QED DARK STATE 1 2 Ω 1 Ω 2 g INTENSITY 1 0 Ω 2 Ω 1 TIME ATOM 1 ATOM 2 |e 1 > |e 2 > Ω 1 g Ω 2 |a 1 > |b 1 > |a 2 > |b 2 > α β 0 1 g NO CAVITY PHOTONS |b 1 b 2 0> β ONE CAVITY PHOTON |e 1 b 2 0> |b 1 e 2 0> g g Ω 1 Ω 2 |a 1 b 2 0> |b 1 b 2 1> |b 1 a 2 0> Ω 2 g −Ω 1 Ω 2 Ω 1 g α |ψ> = (α |a 1 > + β |b 1 >) ⊗ |b 2 > ⊗ |0> |ψ> = (α |b 1 a 2 0> + β |b 1 b 2 0>) = |b 1 > ⊗ (α |a 2 > + β |b 2 >) ⊗ |0>
Page 1 and 2: TELEPORTATION OF A QUANTUM STATE US
Page 3 and 4: TELEPORTATION: WHAT |ψ> = α |↑>
Page 5 and 6: |Φ> = α |↑> + β |↓> ALICE |
Page 7 and 8: LASER-CONTROLLED SPIN EXCITATION RE
Page 9 and 10: 2 − = ( Ω a − Ω b )/ Ω + Ω
Page 11: COHERENCE TRANSFER VIA CAVITY QED A
Page 15 and 16: EXPLICIT SCHEME IN 87 RB C B D A
Page 17 and 18: ATOM 1 IN ARBITRARY STATE: TO BE TE
Page 19 and 20: TRANSFER STATES OF 1 AND 2 INTO 2 O
Page 21 and 22: ROTATE SUPERPOSITION-BASIS BELL STA
Page 23 and 24: LOADING ATOMS INTO A FORT USING A F
Page 25 and 26: PHOTOGRAPH OF THE TRAP
Page 27: POSSIBLE REALIZATION OF BASIC TEST

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