Mainstreaming Quantum Crypto? MagiQ/Cavium MagiQ Technologies has signed a deal with Cavium Networks to boost performance and lower costs through standardized engineering protocols, incorporating Cavium's network security chips into MagiQ's servers and creating designs for networking boards. Will quantum encryption go mainstream?

Coupling Flux Qubits You, Nakamura, and Nori "A central problem for implementing efficient quantum computing is how to realize fast operations, both one- and two-bit ones. However, this is difficult to achieve for a collection of qubits, especially for those separated far away, because the interbit coupling is usually much weaker than the intrabit coupling. Here we present an experimentally feasible method to effectively couple two flux qubits via a common inductance and treat both single and coupled flux qubits with more realistic models which include the loop inductance. The main advantage of our proposal is that a strong interbit coupling can be achieved using a small inductance, so that two-bit operations as fast as one-bit ones can be easily realized. We also show the flux dependence of the transitions between states for the coupled flux qubits." [ arXiv ]

Interpretation of Quantum Mechanics: Current Status and Future Directions Perimeter Institute Lecture Series A technical but pedagogical introduction to the problems associated with developing a consistent understanding of the nature of objective reality in light of quantum theory.

New Life for Schrodinger's Cat The observation of quantum superpositions of distinct macroscopic states by groups at Stony Brook and Delft represents a milestone in experimental quantum physics. Both teams have reported spectroscopic evidence for currents of microamps flowing through a superconducting ring in opposite directions at the same time. Physics World article by Tony Leggett.

Superconducting Quantum Bits Quantum Transport Group Superconducting devices can be used to explore the boundaries between the quantum and classical worlds, and hold potential applications in quantum information. Physics World article by Hans Mooij.