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"Control of Exchange Interaction in a Double Dot System" icon

Control of Exchange Interaction in a Double Dot System

As Rolf Landauer observed in 1960, information is physical. As a consequence, the transport and processing of information must obey the laws of physics. It therefore makes sense to base the laws of information processing and computation on the laws of physics and in particular on quantum mechanics. This idea underlies the modern fields of Quantum Computation and Quantum Information Technology. Electron spin is a particularly well-studied two level physical system that, in semiconductors, has been shown to remain coherent over remarkably long times [1]. This property, which results from the weakness of coupling of the environment to the magnetic moment of the electron, means that the information stored in a spin is preserved over relatively long times. This, combined with its simplicity,... Show More


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