Generation and tomography of arbitrary optical qubits using transient collective atomic excitations.
Opt Lett
; 39(18): 5447-50, 2014 Sep 15.
Article
en En
| MEDLINE
| ID: mdl-26466294
We demonstrate the preparation of heralded Fock-basis qubits (a|0ã+b|1ã) from transient collective spin excitations in a hot atomic vapor. The preparation event is heralded by Raman-scattered photons in a four-wave mixing process seeded by a weak coherent optical excitation. The amplitude and phase of the seed field allow arbitrary control over the qubit coefficients. The qubit state is characterized using balanced homodyne tomography.
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MEDLINE
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En
Revista:
Opt Lett
Año:
2014
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Article
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Estados Unidos