Implementation of controlled multi-qudit operations for a solid-state quantum computer based on charge qudits

Schirmer, S. G.; Greentree, A. D.; Oi, D. K. L.

Implementation of controlled multi-qudit operations for a solid-state quantum computer based on charge qudits

Authors

Schirmer, S. G.

Greentree, A. D.

Oi, D. K. L.

Description

We consider a mechanism to generate controllable qudit-qudit interactions in a charge-position paradigm for a quantum computer, through the use of auxiliary states. By controlling the tunneling rates onto these auxiliaries from the qudits proper, we can controllably switch the entangling operations. We consider a practical architecture in which to realize such a computer and examine the associated Hilbert space dimension.
4 pages, RevTeX4, 4 figures (eps/pdf)