Quantum spin dynamics

Abstract:

We review recent progress towards implementing quantum information processing protocols using electron and nuclear magnetic resonance in the molecule 14N@C60. Using conventional spectrometers, we measure the errors inherent in quantum manipulations of spins. By applying composite pulses, we correct the dominant error to a high degree. Identifying a two qubit computational basis out of the electron and nuclear spin levels of 14N@C60, we implement an ultrafast phase gate on the nuclear qubit by exciting an electron spin transition. © 2007 WILEY-VCH Verlag GmbH & Co. KGaA.

Abstract:

Fullerenes have attracted interest as materials for next-generation electronic devices. Considerable effort has been focused on the chemical functionalization of fullerenes. Fullerene dimers possess interesting photophysical effects. Herein we present an overview of our efforts on the synthesis and characterization of different types of fullerene dimers such as directly bonded dimers, a short chain C60 dimer and other dimers with bridge molecules of varying length. By choosing the bridge-molecule one can control the interfullerene spacing and thus tune the electronic interaction between the fullerenes. © 2007 WILEY-VCH Verlag GmbH & Co. KGaA.

Abstract:

We review recent progress towards implementing quantum information processing protocols using electron and nuclear magnetic resonance in the molecule N-14@C-60. Using conventional spectrometers, we measure the errors inherent in quantum manipulations of spins. By applying composite pulses, we correct the dominant error to a high degree. Identifying a two qubit computational basis out of the electron and oF nuclear spin levels of N-14@C-60, we implement an ultrafast phase gate on the nuclear qubit by exciting an electron spin transition. (c) 2007 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Abstract:

Fullerenes have attracted interest as materials for next-generation electronic devices. Considerable effort has been focused on the chemical functionalization of fullerenes. Fullerene dimers possess interesting photophysical effects. Herein we present an overview of our efforts on the synthesis and characterization of different types of fullerene dimers such as directly bonded dimers, a short chain C-60 dimer and other dimers with bridge molecules of varying length. By choosing the bridge-molecule one can control the interfullerene spacing and thus tune the electronic interaction between the fullerenes. (c) 2007 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.