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A quantum dot embedded in a micropillar is an efficient source of pure and indistinguishable single photons

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  A quantum dot embedded in a micropillar is an efficient source of pure and indistinguishable single photons Sam Wormley <swormley1@gmail.com> - 2016-01-14 11:37 -0600
    Re: A quantum dot embedded in a micropillar is an efficient source of pure and indistinguishable single photons jimp@specsol.spam.sux.com - 2016-01-14 18:02 +0000

#545376 — A quantum dot embedded in a micropillar is an efficient source of pure and indistinguishable single photons

A quantum dot embedded in a micropillar is an efficient source of pure 
and indistinguishable single photons
> http://physics.aps.org/synopsis-for/10.1103/PhysRevLett.116.020401


> In the new scheme, the researchers exploit the so-called Purcell
> effect, which enhances the emission rate of the quantum dot by
> embedding it in a micropillar cavity whose resonant frequency matches
> that of the dot. The cavity also efficiently funnels the dot’s
> emission into a single-mode fiber. In experimental tests, the device
> emitted 3.7 million pure and indistinguishable photons per second.
>
> The scheme could be the basis for a “boson-sampling” machine, a
> quantum device that can solve certain computational tasks faster than
> any classical computer. The authors suggest that with a few tens of
> these perfect single photons, a boson-sampling device could carry out
> such tasks more efficiently than the best desktop computers on the
> market.



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#545392

Sam Wormley <swormley1@gmail.com> wrote:
> A quantum dot embedded in a micropillar is an efficient source of pure 
> and indistinguishable single photons
>> http://physics.aps.org/synopsis-for/10.1103/PhysRevLett.116.020401
> 
> 
>> In the new scheme, the researchers exploit the so-called Purcell
>> effect, which enhances the emission rate of the quantum dot by
>> embedding it in a micropillar cavity whose resonant frequency matches
>> that of the dot. The cavity also efficiently funnels the dot?s
>> emission into a single-mode fiber. In experimental tests, the device
>> emitted 3.7 million pure and indistinguishable photons per second.
>>
>> The scheme could be the basis for a ?boson-sampling? machine, a
>> quantum device that can solve certain computational tasks faster than
>> any classical computer. The authors suggest that with a few tens of
>> these perfect single photons, a boson-sampling device could carry out
>> such tasks more efficiently than the best desktop computers on the
>> market.
 
 
A dime has 118 ridges around the edge.

-- 
Jim Pennino

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