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Thursday, August 06, 2009
12:30 PM - 2:00 PM
T-DO Conference Room (TA-3, Bldg 123, Room 121)

Quantum Lunch

Quantum Computing with Semiconductor Nanophotonics

Thaddeus D. Ladd
E. L. Ginzton Lab, Stanford University and the National Institute of Informatics, Tokyo

Recent progress in the ultrafast optical control of single, semiconductor-based quantum dots shows strong promise for quantum computation. I will describe this progress and outline trade-offs in different technological choices for quantum dots. I will then indicate how multi-qubit logic may be performed, and introduce a sketch of a large-scale, fault-tolerant and defect-tolerant quantum computer architecture, employing quantum dots in optical microcavities connected by on-chip waveguides and drop-filter switches. I will highlight the key advantages of this hardware: high speed operation, and capabilities for efficient quantum communication.

Host: Jim Harrington