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Proceedings Paper

Physical-resource demands for scalable quantum computation
Author(s): Carlton M. Caves; Ivan Deutsch; Robin Blume-Kohout
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Paper Abstract

The primary resource for quantum computation is Hilbert-space dimension. Whereas Hilbert space itself is an abstract construction, the number of dimensions available to a system is a physical quantity that requires physical resources. Avoiding a demand for an exponential amount of these resources places a fundamental constraint on the systems that are suitable for scalable quantum computation. To be scalable, the number of degrees of freedom in the computer must grow nearly linearly with the number of qubits in an equivalent qubit-based quantum computer.

Paper Details

Date Published: 16 May 2003
PDF: 9 pages
Proc. SPIE 5111, Fluctuations and Noise in Photonics and Quantum Optics, (16 May 2003); doi: 10.1117/12.504760
Show Author Affiliations
Carlton M. Caves, Univ. of New Mexico (United States)
Ivan Deutsch, Univ. of New Mexico (United States)
Robin Blume-Kohout, Los Alamos National Lab. (United States)


Published in SPIE Proceedings Vol. 5111:
Fluctuations and Noise in Photonics and Quantum Optics
Derek Abbott; Jeffrey H. Shapiro; Yoshihisa Yamamoto, Editor(s)

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