Our quantum computing team studies nanoscale semiconductor devices for qubit applications. Semiconductor quantum dots and donor systems are promising candidates for implementing qubits. We use atomistic tightbinding to analyze and understand these systems. We study and predict the electronic structure and coherence of quantum dot and donor based qubits. We investigate multiple qubit interaction with the help of Full Configuration Interaction.
- Jarryd Pla, Fahd Mohiyaddin, Kuan Tan, Juan Dehollain, Rajib Rahman, Gerhard Klimeck, David Jamieson, Andrew Dzurak, Andrea Morello, "Coherent Control of a Single Silicon-29 Nuclear Spin Qubit" Accepted in Physical Review Letters (Nov 17, 2014)
- Yuling Hsueh, Holger Buch, Yaohua Tan, Yu Wang, Lloyd Hollenberg, Gerhard Klimeck, Michelle Simmons, Rajib Rahman, "Spin-lattice relaxation times of single donors and donor clusters in silicon" accepted in Physical Review Letters (October, 2014).
- Bent Weber, Y. Tan, Suddhasatta Mahapatra, Thomas Watson, Hoon Ryu, Rajib Rahman, Lloyd Hollenberg, Gerhard Klimeck, and Michelle Simmons, "Spin blockade and exchange in Coulomb-confined silicon double quantum dots", Nature Nanotechnology (2014)
- J. Salfi, J. Mol, Rajib Rahman, Gerhard Klimeck, Michelle Simmons, Lloyd Hollenberg, and Sven Rogge, "Spatially resolving valley quantum interference of a donor in silicon", Nature Materials (2014)