Quantum Sensor Developed by LSU Researcher Breaks New Limits

Ver Greeneyes
Ver Greeneyes
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Topic 194839

Article (which makes some exciting predictions but explains very little), and the paper itself, which is on the technical side but interesting. At this point the work is still mostly theoretical, but it'll be interesting to see if they can develop and apply actual sensors based on the proposed scheme :)

ML1
ML1
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Quantum Sensor Developed by LSU Researcher Breaks New Limits

A quick skim-and-guess is:

Super-resolution by utilising all the data from a group of entangled photons.

Heisenberg remains as uncertain as ever. You can perhaps narrow the uncertainty by adding up multiple guesses!

Keep searchin',
Martin

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tullio
tullio
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I started cooperating with

I started cooperating with the QuantumFIRE project, which sponsors the idea of pilot waves of Louis de Broglie and David Bohm, always rejected by the followers of the Copenaghen interpretation of quantum mechanics. The project is originating from the Cavendish Laboratory of Cambridge University and aims to check the prediction of pilot wave theory with the structure of the Cosmic Microwave Background. Good luck to them.
Tullio

Chipper Q
Chipper Q
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RE: A quick skim-and-guess

Message 97511 in response to message 97509

Quote:

A quick skim-and-guess is:

Super-resolution by utilising all the data from a group of entangled photons.

Heisenberg remains as uncertain as ever. You can perhaps narrow the uncertainty by adding up multiple guesses!


Good guess for a quick skim, but cooler than that (literally, a 'few tens of nanoKelvin') – over a hundred entangled atoms, all in the same quantum state, in the form of a Bose-Einstein condensate (BEC). And non-linear optical media (where the index of refraction changes for different frequencies), and an 'optical parametric oscillator', and a one-dimensional optical lattice, and ... I would never have guessed and don't understand it all yet ...

Check out this article from the IOP back in '08: Prototype gravitational wave detector uses squeezed light

More recently (like now), see this one: Spin-squeezed atoms boost interferometry

And if you're feeling brave, see Squeezing and Quantum Entanglement in cold atomic systems.

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