Splitting a Photon ·
One Becomes an Entangled Pair
un
seel
.com · spontaneous parametric down-conversion · ω_pump = ω_1 + ω_2
Pump λ
405 nm
Pair λ
—
Energy
—
Pairs made
0
Pump photon (violet)
Signal photon
Idler photon
Nonlinear crystal
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Un
seel
.com · Spontaneous Parametric Down-Conversion