SIGN UP FOR OUR NEWSLETTER

We'll email you occasional competition updates and tell you who wins.

- P is for Planck’s Constant
- “ This is one of the universal constants of nature, and relates the energy of a single quantum of radiation to its frequency. It is central to quantum theory and appears in many important formulae, including the Schrödinger Equation ” more from our A-Z of

the quantum world

- S is for Schrödinger’s Cat
- “ A hypothetical experiment in which a cat kept in a closed box can be alive and dead at the same time – as long as nobody lifts the lid to take a look ” more from our A-Z of

the quantum world

- I is for Information
- “ Many researchers working in quantum theory believe that information is the most fundamental building block of reality ” more from our A-Z of

the quantum world

- L is for Light
- “ We used to believe light was a wave, then we discovered it had the properties of a particle that we call a photon. Now we know it, like all elementary quantum objects, is both a wave and a particle! ” more from our A-Z of

the quantum world

- M is for Multiverse
- “ Our most successful theories of cosmology suggest that our universe is one of many universes that bubble off from one another. It’s not clear whether it will ever be possible to detect these other universes. ” more from our A-Z of

the quantum world

- O is for Objective reality
- “ Neils Bohr, one of the founding fathers of quantum physics, said there is no such thing as objective reality. All we can talk about, he said, is the results of measurements we make. ” more from our A-Z of

the quantum world

- Z is for Zero-point energy
- “ Even at absolute zero, the lowest temperature possible, nothing has zero energy. In these conditions, particles and fields are in their lowest energy state, with an energy proportional to Planck’s constant ” more from our A-Z of

the quantum world

- T is for Teleportation
- “ Quantum tricks allow a particle to be transported from one location to another without passing through the intervening space – or that’s how it appears. The reality is that the process is more like faxing, where the information held by one particle is written onto a distant particle. ” more from our A-Z of

the quantum world

- M is for Many Worlds Theory
- “ Some researchers think the best way to explain the strange characteristics of the quantum world is to allow that each quantum event creates a new universe ” more from our A-Z of

the quantum world

- P is for Probability
- “ Quantum mechanics is a probabilistic theory: it does not give definite answers, but only the probability that an experiment will come up with a particular answer. This was the source of Einstein’s objection that God “does not play dice” with the universe ” more from our A-Z of

the quantum world

- C is for Computing
- “ The rules of the quantum world mean that we can process information much faster than is possible using the computers we use now ” more from our A-Z of

the quantum world

- A is for Alice and Bob
- “ In quantum experiments, these are the names traditionally given to the people transmitting and receiving information. In quantum cryptography, an eavesdropper called Eve tries to intercept the information ” more from our A-Z of

the quantum world

### Featured Videos

- Alice in Quantumland
- Quantum thoughts
- A State of Superposition
- Do we have free will?
- Cat in the Box
- Feedback
- Prism Part 1 – Splitting Atoms
- lesson 2 : quantum bureaudynamics
- the Cat
- Quantum Daughter
- Quantum Eraser Channel
- COLLAPSE

Posted by Joe Kroese on December 2, 2012 at 3:00 pm

## A State of Superposition

Raul fled Somalia when he was twelve, after witnessing the killing of his father. On the plane out, the announcements were in a language he couldn’t understand; he had no idea where he was going. He was not in a position to observe the destination and so entered a state of superposition, simultaneously travelling to France, Germany, America and every other country with an airport. It was only once he landed, and a social worker pointed to England on a map, that Raul was once again in a classical location.