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.
Unlike traditional computers that rely on bits of information that can be in one of two states (1 or 0), quantum computers manipulate qubits, or units of information tucked inside subatomic particles. That means, they follow the wacky laws of quantum mechanics and so can be in two states at once. This ability allows quantum computers to theoretically store exponentially more information than your everyday laptop. Live Science is here to dissect the latest achievements and discoveries in this bizarre quantum world of computing.
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.
A quantum teleportation experiment takes another step toward building a real quantum computer by transporting qubits across a solid-state circuit.
The world's first non-solid storage of a very short film uses atomic vapor to store and replay two images.
It could reduce complex computing times from years to seconds. Here's a quick run-down on how it works.