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Physicists breeding Schroedinger cat states
phys.org ^ | 05/01/2017

Posted on 05/08/2017 5:55:49 AM PDT by BenLurkin

Physicists have learned how they could breed Schrödinger cats in optics. Scientists tested a method that could potentially amplify superpositions of classical states of light beyond microscopic limits and help determine the boundaries between the quantum and classical worlds.

...

Co-author and University of Calgary graduate student Anastasia Pushkina explains: "The idea of the experiment was proposed in 2003 by the group of Professor Timothy Ralph of the University of Queensland, Australia. In essence, we cause interference of two "cats" on a beam splitter. This leads to an entangled state in the two output channels of that beam splitter. In one of these channels, a special detector is placed. In the event this detector shows a certain result, a "cat" is born in the second output whose energy is more than twice that of the initial one."

The Lvovsky group tested this method in the lab. In the experiment, they successfully converted a pair of negative squeezed "Schrodinger cats" of amplitude 1.15 to a single positive "cat" of amplitude 1.85. They generated several thousand such enlarged "cats" in their experiment.

"It is important that the procedure can be repeated: new 'cats' can, in turn, be overlapped on a beam splitter, producing one with even higher energy, and so on. Thus, it is possible to push the boundaries of the quantum world step by step, and eventually to understand whether it has a limit,"

(Excerpt) Read more at phys.org ...


TOPICS: Science
KEYWORDS: cats; quantum; schrdinger; schrdingerscat; schrodinger; schrodingerscat
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To: BlueDragon

Don’t worry. The experiment is a fraud. They refer to “high energy states.” No cat has ever been in a high-energy state.


21 posted on 05/08/2017 7:51:44 AM PDT by dangus
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To: BenLurkin

My brain hurts.


22 posted on 05/08/2017 8:56:51 AM PDT by Duke C.
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To: BenLurkin

23 posted on 05/08/2017 10:10:04 AM PDT by mikrofon (Cinco de Quantum BUMP)
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To: dangus
No cat has ever been in a high-energy state.

Ever see a cat trying to escape an unwanted bath? ;-)

24 posted on 05/08/2017 10:53:48 AM PDT by ken in texas
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To: ken in texas

Hydrophobic reactions don’t count as high-energy. Unless rabies.


25 posted on 05/08/2017 11:08:06 AM PDT by dangus
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To: BenLurkin

‘In essence, we cause interference of two “cats” on a beam splitter. This leads to an entangled state...’

Yarn?


26 posted on 05/08/2017 11:17:49 AM PDT by dangus
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