Experiment shows quantum thermalization

If you prepare a cup of tea and leave it on a table, you know what will happen: it will get cold. And if you mix a cup of water at room temperature with some ice it is also quite clear what will happen next: the ice will melt and the water will get a…

Scientists find an Earth-like planet

In Douglas Adams’ “The Hitchhiker’s Guide to the Galaxy” (T) Alpha Centauri is a very important place in the Universe. There you can find the Local Planning Department, where you can learn about the local affairs and make formal complaints should you find, let’s say, that the Earth is to be destroyed to make room…

Scientists find a way to make quantum computing more reliable

Classical computer (the ones we use on a daily basis) encode all the information we need in bits, that is, in “zeroes” and “ones”. This type of computer performs calculations in a similar way to how it would be done by hand. It does have more patience than most of us to solve such problems,…

Can quantum mechanics be studied using an electromechanical system?

When a theoretical physicist is given a problem that involves quantum mechanics one of the first thing he or she is likely to do is to write the Hamiltonian of the problem. This is an operator in the quantum mechanics definition of an operator, that is, it is a mathematical object that maps one state…

What is fingerprinting and how quantum mechanics can improve it

If you are a fan of police procedure series such as CSI, Law and Order, and others you are probably very aware of the importance of our fingerprints. They can lead the detectives straight to the culprit and, once he is caught, they can secure his (or her) arrest and conviction. The reason why fingerprints…