Please use this identifier to cite or link to this item: https://doi.org/10.1103/PhysRevA.89.022117
Title: Non-Abelian geometric phases in a system of coupled quantum bits
Authors: Mousolou, V.A.
Sjöqvist, E. 
Issue Date: 20-Feb-2014
Source: Mousolou, V.A., Sjöqvist, E. (2014-02-20). Non-Abelian geometric phases in a system of coupled quantum bits. Physical Review A - Atomic, Molecular, and Optical Physics 89 (2) : -. ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevA.89.022117
Abstract: A common strategy to measure the Abelian geometric phase for a qubit is to let it evolve along an orange-slice-shaped path connecting two antipodal points on the Bloch sphere by two different semi-great-circles. Since the dynamical phases vanish for such paths, this allows for direct measurement of the geometric phase. Here, we generalize the "orange-slice" setting to the non-Abelian case. The proposed method to measure the non-Abelian geometric phase can be implemented in a cyclic chain of four qubits with controllable interactions. © 2014 American Physical Society.
Source Title: Physical Review A - Atomic, Molecular, and Optical Physics
URI: http://scholarbank.nus.edu.sg/handle/10635/112470
ISSN: 10502947
DOI: 10.1103/PhysRevA.89.022117
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