Dual computational basis qubit in semiconductor heterostructures

Gilbert, M. J.; Akis, R.; Ferry, D. K.
August 2003
Applied Physics Letters;8/18/2003, Vol. 83 Issue 7, p1453
Academic Journal
Advances in quantum computing have revealed computing capabilities that threaten to render many of the public encryption codes useless against the hacking potential for a quantum-mechanical-based computing system. This potential forces the study of viable methods to keep vital information secure from third-party eavesdropping. In this letter, we propose a coupled electronic waveguide device to create a qubit with two computational bases. The characteristics we have obtained by simulating such devices suggest a possible way of implementing quantum cryptography in semiconductor device architectures. © 2003 American Institute of Physics.


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