Applications of Nanotechnology to Quantum Informatics
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abstract
Nanotechnology is making an impact on many important fronts, ranging from electronic circuits to surface science and from medicine to energy production. The progress in nanotechnology research has opened up the possibility of fabricating new kind of materials with properties that are not available in real life materials. This creates a vast potential of applications in different areas of science. Our particular interest lies in quantum informatics and the basic thrust of our project is to investigate the applications of nanotechnology to quantum information processing. Quantum information grew out of earliest studies on quantum secure communication and has evolved into the whole disciplines of quantum computing and quantum metrology including precision microscopy, sub-wavelength lithography, and sub-diffraction limited imaging. A basic aspect common to these areas of research is the possibility of precisely controlling the interaction between individual quantum sub-systems and the transfer of quantum states from one quantum sub-system to another with high fidelity. A major obstacle in the realization of quantum informatics devices is decoherence. A way to overcome decoherence is to generate strong, coherent interactions between individual quantum subsystems. We note that the emerging field of surface plasmonics provides unique capabilities in controlling the interaction of electromagnetic fields (photons) and electrons at the nanoscale. A natural question is whether such strong coupling due to the surface plasmons can be manipulated via the external coherent control? To the best of our knowledge, this problem has not yet been studied. In this proposal, we will explore how to control the strong interaction of atoms (or quantum dots) due to the surface-plasmon modes generated by nanometal particles..........
