



01194nas a2200145   4500008004100000245006400041210006200105260001400167490000700181520075200188100002300940700001800963700002300981856004401004       2003                        eng d00aA Quantum Computer Architecture using Nonlocal Interactions0 aQuantum Computer Architecture using Nonlocal Interactions  c2003/5/270 v673 a  Several authors have described the basic requirements essential to build a
scalable quantum computer. Because many physical implementation schemes for
quantum computing rely on nearest neighbor interactions, there is a hidden
quantum communication overhead to connect distant nodes of the computer. In
this paper we propose a physical solution to this problem which, together with
the key building blocks, provides a pathway to a scalable quantum architecture
using nonlocal interactions. Our solution involves the concept of a quantum bus
that acts as a refreshable entanglement resource to connect distant memory
nodes providing an architectural concept for quantum computers analogous to the
von Neumann architecture for classical computers.
1 aBrennen, Gavin, K.1 aSong, Daegene1 aWilliams, Carl, J.  uhttp://arxiv.org/abs/quant-ph/0301012v2