Physicists breeding Schroedinger cat states

phys.org ^ | 05/01/2017

[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,"

[BenLurkin]

Schrödinger's cat: a cat, a flask of poison, and a radioactive source are placed in a sealed box. If an internal monitor detects radioactivity (i.e. a single atom decaying), the flask is shattered, releasing the poison that kills the cat. The Copenhagen interpretation of quantum mechanics implies that after a while, the cat is simultaneously alive and dead. Yet, when one looks in the box, one sees the cat either alive or dead, not both alive and dead. This poses the question of when exactly quantum superposition ends and reality collapses into one possibility or the other. Credit: Wikipedia / CC BY-SA 3.0

[dangus]

Schroedinger cat states? It’s a state; it’s not a state... Kurdistan! (Palestine! Donbas! South Ossetia! Pretty much anywhere the UN has ever been!)

[BenLurkin]

Catisstan

Purrfect

[Buttons12]

“We’re all mad here.”

[wbarmy]

I only read this page to see what clever illustrations the Freepers come up with.

[I want the USA back]

There is no cat. It’s a thought experiment. The conclusions of the so-called scientists are contrary to logic. A creature is either alive or dead. There is no middle state between the two.

1 is either equal to 0 or not. There is no middle state between the two.

[Pollster1]

“I only read this page to see what clever illustrations the Freepers come up with.”

Would you settle for clever illustrations from “The Big Bang Theory”?

https://www.youtube.com/watch?v=HCOE__N6v4o&list=RDpNTMYNj2Ulk&index=9

[KC_Lion]

[Red Badger]

Would that no be Schrodinger’s Kittens?....................

[BenLurkin]

Yes. And they’re adorable.

[Cletus.D.Yokel]

To capture said CAT, which is moving at the speed-of-light in a 2-dimensional box (LxH), the highest probability of capture within that 2-dimensional box exists at either end of that box wherein the CAT must ^stop^ and change direction.

At either end of the box, the result of the integral-equation is equal to ‘1’ (or, so Dr. Vu taught us in Quantum Mechanics and Dr. Freeman taught us in “Diff-EQ”)

[AustinBill]

That is very much the classical view. It’s also demonstrably incorrect. Reality is “larger” than what rationality can encompass. See Goedel Incompleteness.

[CrazyIvan]

“Yes. And they’re adorable.”

“Were” adorable.

Pavlov’s dog ate them.

[Noumenon]

There is no cat.

There is no spoon, either.

[BlueDragon]

Schroedinger cat states? It’s a state; it’s not a state...

I hope they limit them to island somewhere far away from the rest of us. You know how they get, when they think they have the upper paw.

[KSCITYBOY]

btt

[UCANSEE2]

“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. “

Two 1.15 cats in, one 1.85 cat out. 2.30-1.85= .45 in loss.

[UCANSEE2]

When they can put a dead cat in the box, and have a live cat come out of the box, then I’ll be impressed.

[BlueDragon]

Pavlov’s dog ate them.

It was nothing personal, just business.

Mona Lisas and Mad-hatters

[Red Badger]

But HALF of them are dead!...................