Quantum Computers

The prototype of the memcomputer, which works by mimicking the human brain, could one day lead to computers that solve notoriously difficult math problems and could even help to break codes.

Building a quantum computer can sometimes yield unexpected benefits — like providing the right environment to demonstrate that Albert Einstein's theory of special relativity is, in fact, correct.

Quantum dot masers could help develop quantum computers and probe the mysteries of entanglement.

A new particle detector has made it possible to generate three entangled photons that could be used in quantum telecommunication.

Researchers developed a technique to calculate quantum wave functions 350 times faster than previous methods.

The world's first commercial quantum computer, made by the Canadian company D-Wave Systems Inc., performed no better than a classical computer in a recent analysis.

Researchers have directly measured a photon's 27-dimensional quantum state, which could make it simpler to build quantum-mechanical technologies such as quantum computers and unbreakable codes.

Any device that picks up on the presence of light has to absorb its energy, and with it, the photons. At least, that was what scientists thought until now.

A new system has kept a quantum bit of information in an entangled state for 39 minutes at room temperature, more than 10 times longer than the previous record.

Researchers have found a way to get quantum bits to last long enough to do computations with, using the magnetic properties of a rare earth element called holmium and the symmetry of platinum.