Physicists have created a quantum drum, similar to schrödinger’s cat

© Imperial College LondonКвантовый drum created by physicists from Australia and BritainPhysicists have created a quantum drum, similar to schrödinger’s cat© Imperial College LondonПодпишись to daily updates RIA Science

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Scientists from Australia and the UK have created a very unusual quantum analogue of the drum, which simultaneously vibrate and silent, making it similar to schrödinger’s cat, according to a paper published in New Journal of Physics.

«In order to learn how to beat our drum, we had to create a special quantum «sticks», whose role is played by a single particle of light. All this opens the way to create a mechanical analogue of schrödinger’s cat, and verification of the laws of quantum mechanics to macro scales,» said Martin Ringbauer (Martin Ringbauer) from the University of Queensland in Brisbane (Australia).

Schrödinger’s cat — «party» a thought experiment proposed by Austrian physicist Erwin schrödinger in 1935. During it in a locked box placed cat and the mechanism to open a container of poison in case of disintegration of a radioactive atom (that may happen or not happen).

In accordance with the principles of quantum physics the cat is both alive and dead. From here originates the term «quantum superposition» – the set of all States in which you can have a cat. Today physicists, including scientists from the Russian quantum center, is actively trying to create such a schrödinger’s cat, which could be seen with the naked eye.

Ringbauer, and his colleagues have taken the first step to «growing» the big cat, Schrodinger, studying how single particles of light interact with a very thin, but visible to the eye films. Scholars interested in whether the collision of photons with such membranes, to generate their quantum effects «violate» the classical laws of mechanics.

As noted physicist, under certain conditions, a single particle of light can be «cut» in half, creating two more dim, but at the same time entangled photons. If one of these particles is directed to the membrane, and the second on an ordinary mirror, their interaction will lead to the fact that between «drum» and photons there is another quantum communication.

Guided by these ideas, the authors have collected similar setup and began to observe the oscillations of the film, using another laser. As recognized, Ringbauer, at room temperature this design is not yet fully similar to the «Schrodinger’s reel», but even in such circumstances, on its surface there are anomalies that indicate the presence of quantum properties.

In the nearest future the team plans to improve the operation of the laser sensors of vibrations and put a «quantum drum» in a refrigeration unit that will, they hope, will help us for the first time to see a real schrödinger’s cat.