Measuring the Berry Phase in a Superconducting Phase Qubit by a Shortcut to Adiabaticity

Abstract

With a counter-diabatic field supplemented to the reference control field, the `shortcut to adiabaticiy' (STA) protocol is implemented in a superconducting phase qubit. The Berry phase measured in a short time scale is in good agreement with the theoretical result acquired from an adiabatic loop. The trajectory of a qubit vector is extracted, verifying the Berry phase alternatively by the integrated solid angle. The classical noise is introduced to the amplitude or phase of the total control field. In the statistics of the Berry phase, the mean with either noise is almost equal to that without noise, while the variation with the amplitude noise can be described by an analytical expression.

27 pages, 5 figures, and 1 table including Supplementary

References in corpus (5)

• Shortcut to adiabatic passage in two and three level atoms
• Observation of Berry's Phase in a Solid State Qubit
• Experimental determination of the Berry phase in a superconducting charge pump
• Geometric Phase Gates with Adiabatic Control in Electron Spin Resonance
• Geometric phases in superconducting qubits beyond the two-level-approximation

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