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Researchers describe how to carry out the first experimental test of string theory in a paper published tomorrow in Physical Review Letters.

String theory was originally developed to describe the fundamental particles and forces that make up our universe. The new research, led by a team from Imperial College London, describes the unexpected discovery that string theory also seems to predict the behaviour of entangled quantum particles. As this prediction can be tested in the laboratory, researchers can now test string theory.

Zeeya Merali at Nature News writes: ''Quantum hackers have performed the first 'invisible' attack on two commercial quantum cryptographic systems. By using lasers on the systems — which use quantum states of light to encrypt information for transmission — they have fully cracked their encryption keys, yet left no trace of the hack.

Submission deadline: 

Thursday, October 13, 2011

Quantum Information Processing (QIP) is a rapidly developing field of research spanning both physics and computer science. As the name implies, the field extends information processing (including computing and cryptography) to physical regimes where quantum effects become significant.

James Dacey at PhysicsWorld writes: ''Nanotechnology offers the promise of a new wave of sensors and optical components, but the tiny sizes involved can make it difficult for users to exchange information with these devices. Now, researchers in Spain have demonstrated a novel solution to this problem that involves fixing an "antenna" to nanoscale objects that can send and receive optical data with high precision.

The physics of quantum information team at the physics department of the Universite de Sherbrooke invites applications for up to four postdoctoral positions. The group is composed of four faculty members, Alexandre Blais, Michel Pioro-Ladrière, David Poulin, and Bertrand Reulet whose research interests cover both theoretical and experimental aspects of quantum information science and mesoscopic physics. The successful applicants will be involved in the group’s activities, which includes:


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