Tuesday, March 5, 2013

1303.0495 (Man-Lv Peng et al.)

Detecting non-Abelian geometric phase in circuit QED    [PDF]

Man-Lv Peng, Jian Zhou, Zheng-Yuan Xue
We propose a scheme for detecting noncommutative feature of the non-Abelian geometric phase in circuit QED, which involves three transmon qubits capacitively coupled to an one-dimensional transmission line resonator. By controlling the external magnetic flux of the transmon qubits, we can obtain an effective tripod interaction of our circuit QED setup. The noncommutative feature of the non-Abelian geometric phase is manifested that for an initial state undergo two specific loops in different order will result in different final states. Our numerical calculations show that this difference can be unambiguously detected in the proposed system.
View original: http://arxiv.org/abs/1303.0495

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