Quantum Computing on a Cloud

The new work, by University of Vienna quantum computing pioneer Anton Zeilinger and a team of international scientists, combines the quantum computing and cloud computing.
Quantum computing will use the inherent uncertainties in quantum physics to carry out fast, complex computations.
One of the peculiarities of the branch of physics called quantum mechanics is that objects can be in more than one state at once, with the states of different objects tied together in ways that even Albert Einstein famously referred to as "spooky".
Instead of the 0 and 1 "bits" of digital computing, quantum computing aims to make use of these mixed and entangled states to perform calculations at comparatively breathtaking speeds.
Other quantum trickery comes in cryptography, the art of encrypting data. Data is encoded in delicately prepared states - most often those of single particles of light called photons - and the data cannot be "read" without destroying them.
Quantum cryptography uses this feature to send the "keys" to decrypting messages with high security.
more: http://www.bbc.co.uk/news/science-environment-16636580