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Phys. Rev. A 70, 012304 (2004) [9 pages]

Mimicking time evolution within a quantum ground state: Ground-state quantum computation, cloning, and teleportation

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Ari Mizel
Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, USA

Received 8 December 2003; published 7 July 2004

Ground-state quantum computers mimic quantum-mechanical time evolution within the amplitudes of a time-independent quantum state. We explore the principles that constrain this mimicking. A no-cloning argument is found to impose strong restrictions. It is shown, however, that there is flexibility that can be exploited using quantum teleportation methods to improve ground-state quantum computer design.

© 2004 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevA.70.012304
DOI:
10.1103/PhysRevA.70.012304
PACS:
03.67.Lx