Аннотация:
Abstract:
We analyze the possibility and efficiency of non-holonomic control over
quantum devices with an exponentially large number of Hilbert space
dimensions. We show that completely controllable devices of this type
can be assembled from elementary units of arbitrary physical nature,
and can be employed efficiently for universal quantum computations
and simulation of quantum-field dynamics. As an example we describe
a toy device that can perform Toffoli-gate transformations and discrete
Fourier transform on 9 qubits.
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