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Spin-echo of a single electron spin in a quantum dot We report a measurement of the spin-echo decay of a single e...

An Area Law for One Dimensional Quantum Systems We prove an area law for the entanglement entropy in gapped one d...

Strategies for the preparation of large cluster states using non-deterministic gates The cluster state model for ...

Quantum private queries We propose a cheat sensitive quantum protocol to perform a private search on a classical ...

How Continuous Quantum Measurements in Finite Dimensions Are Actually Discrete We show that in finite dimensions ...

On the optimality of individual entangling-probe attacks against BB84 quantum key distribution Some MIT researche...

The private classical capacity with a symmetric side channel and its application to quantum cryptography We study...

Is quantum bit commitment really impossible? Break my protocol if you can.

Stanford researchers develop a quantum "light switch"

Infinitely secure cryptography that renders any computer unhackable. Computers that can solve the structure of a complicated protein at the drop of a hat. Programs to decrypt complicated enemy secrets. Optical data connections up to 100 times faster than current technology allows.

Photons and atoms hold the power to make these innovations reality; scientists just have to figure out h...

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Quantum View

Graphene, time for nanotubes to roll over?

by Christoph Stampfer

The recent experimental discovery of graphene [1, 2], filling the gap between quasi 1-dimensional (1-D) nanotubes and 3-D graphite makes truly 2-D solid state systems accessible. Both graphene and carbon nanotubes exhibit unique electronic properties which make these materials promising candidates for future high mobility nanoelectronics and potential extensions to downscaling state-of-the-art silicon technology [3]. In this context, graphene and carbon nanotubes are both interesting materials for future information technology, including solid state quantum computation [4], whose backbone is the initialization, manipulation, and detection of states in two-level quantum systems, the so-called qubits. In semiconductor quantum dots, the electron spin (state up or dow...