Abstract
We study the conditional preparation of single photons based on parametric downconversion, where the detection of one photon from a given pair heralds the existence of a single photon in the conjugate mode. We derive conditions on the modal characteristics of the photon pairs, which ensure that the conditionally prepared single photons are quantum-mechanically pure. We propose specific experimental techniques that yield photon pairs ideally suited for single-photon conditional preparation.
| Original language | English |
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| Pages (from-to) | 146-161 |
| Number of pages | 16 |
| Journal | Laser Physics |
| Volume | 15 |
| Issue number | 1 |
| State | Published - Jan 2005 |