Non-Abelian off-diagonal geometric phases in nano-engineered four-qubit systems
Autor: | Mousolou, Vahid Azimi, Canali, Carlo M., Sjöqvist, Erik |
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Rok vydání: | 2013 |
Předmět: | |
Zdroj: | Europhys. Lett. 103, 60011 (2013) |
Druh dokumentu: | Working Paper |
DOI: | 10.1209/0295-5075/103/60011 |
Popis: | 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. Comment: Some changes, journal reference added |
Databáze: | arXiv |
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