10 votes
Accepted

State produced by spontaneous parametric down-conversion (SPDC)

Background First of all, I'll use $\lvert H\rangle$ as a horizontally polarised state and $\lvert V\rangle$ as a vertically polarised state1. There are three modes of light involved in the system: ...
Mithrandir24601's user avatar
  • 3,686
9 votes

State produced by spontaneous parametric down-conversion (SPDC)

The existing answer does a good job at describing the state that comes from a SPDC configuration at low conversion efficiency, but it's also worth noting that the single-photon behaviour is not all ...
Emilio Pisanty's user avatar
4 votes

Improving probability of spontaneous parametric down conversion

Your question asks two questions that are less-related than you might hope. First, how do we increase the probability of down-conversion occuring? This is fundamentally a question about material ...
D. H. Smith's user avatar
2 votes

Improving probability of spontaneous parametric down conversion

Here's some relevant work in Optimizing type-I polarization-entangled photons-Radhika Rangarajan, Michael Goggin, Paul Kwiat. Abstract: Optical quantum information processing needs ultra-bright ...
Sanchayan Dutta's user avatar

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