Unitary Evolution on a Phase Space with Power of Two Discretization
Abstract
We construct quantum evolution operators on the space of states, that realize the metaplectic representation of the modular group SL(2,Z2n). This representation acts in a natural way on the coordinates of the non-commutative 2-torus and thus is relevant for noncommutative field theories as well as theories of quantum space-time. The larger class of operators, thus defined, may be useful for the more efficient realization of new quantum algorithms.
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