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arXiv · 1307.7073

Non-Abelian off-diagonal geometric phases in nano-engineered four-qubit systems

Vahid Azimi Mousolou·Carlo M. Canali·Erik Sjöqvist
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Abstract

The concept of off-diagonal geometric phase (GP) has been introduced in order to recover interference information about the geometry of quantal evolution where the standard GPs are not well-defined. In this Letter, we propose a physical setting for realizing non-Abelian off-diagonal GPs. The proposed non-Abelian off-diagonal GPs can be implemented in a cyclic chain of four qubits with controllable nearest-neighbor interactions. Our proposal seems to be within reach in various nano-engineered systems and therefore opens up for first experimental test of the non-Abelian off-diagonal GP.

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Vahid Azimi Mousolou, Carlo M. Canali, Erik Sjöqvist. 2013-10-24. Non-Abelian off-diagonal geometric phases in nano-engineered four-qubit systems. https://doi.org/10.1209/0295-5075%2F103%2F60011

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