G. Yamahata,1,2 T. Kodera,1,3,4 H. O. H. Churchill,2 K. Uchida,5 C. M. Marcus,2,* and S. Oda1 1Quantum Nanoelectronics Research Center, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8552, Japan 2Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA 3Institute for Nano Quantum Information Electronics, The University of Tokyo, Tokyo 153-8505, Japan...

With the size of electronic devices approaching the nanometer scale, transition to self-assembly in molecular electronics systems appears to be technologically the next step to pursue. Quantum conductors with an especially high potential for applications are organic polymers and carbon nanotubes. The latter are being considered for use as both nonlinear electronic devices and as connectors betw...

Due to limitations in device speed and performance of silicon-based electronics, silicon optoelectronics has been extensively studied to achieve ultrafast optical-data processing1-3. However, the biggest challenge has been to develop an efficient silicon-based light source since indirect band-gap of silicon gives rise to extremely low emission efficiency. Although light emission in quantum-conf...

Non-relativistic quantum mechanics is necessarily an approximation to relativistic quantum mechanics. It is valid in the regime where kinetic energies and potential energies (more generally field energies) are much less than the rest mass energies of particles. Following philosophy of Laughlin (2005), I prefer to think of non-relativistic quantum mechanics as an emergent theory: one that is exa...

Quantum computation algorithms promise of enormous speed up in dealing with certain classes of problems [1,2] can only be realized if a quantum computing device is built on a scale of at least several thousand qubits. The inherent scalability of solid state devices and high level of expertise existing in industrial electronics and experimental mesoscopic physics make solid state-based quantum c...