Landau-Zener-Stückelberg Spectroscopy of a Superconducting Flux Qubit
arXiv:1009.4295 · doi:10.1103/PhysRevB.82.144526
Abstract
We proposed a new method to measure the energy spectrum of a superconducting flux qubit. Different from the conventional frequency spectroscopy, a short triangle pulse is used to drive the qubit through the anticrossing and generates Landau-Zener-Stückelberg interference patterns, from which the information of the energy spectrum can be extracted. Without installing microwave lines one can simplify the experimental setup and reduce the unwanted effects of noise. Moreover, the method can be applied to other quantum systems, opening the possibility of calibrating and manipulating qubits with linear pulses.
7 pages, 5 figures
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- Landau-Zener-Stuckelberg interferometry
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Cited by in corpus (5)
- Nonadiabatic Landau-Zener-Stückelberg-Majorana transitions, dynamics, and interference
- Electromagnetically induced transparency and Autler-Townes splitting in superconducting flux quantum circuits
- Amplitude spectroscopy of two coupled qubits
- Dynamic transition in Landau-Zener-Stückelberg interferometry of dissipative systems: the case of the flux qubit
- Landau-Zener-Stuckelberg interference in a multi-anticrossing system