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Superconducting Qubits Open Quantum Systems Decoherence Quantum Simulation

Observation of Autler-Townes effect in a dispersively dressed Jaynes-Cummings system

arXiv

Authors: B. Suri, Z. K. Keane, R. Ruskov, Lev S. Bishop, Charles Tahan, S. Novikov, J. E. Robinson, F. C. Wellstood, B. S. Palmer

Year

2013

Paper ID

33279

Status

Preprint

Abstract Read

~2 min

Abstract Words

111

Citations

N/A

Abstract

Photon number splitting is observed in a transmon coupled to a superconducting quasi-lumped-element resonator in the strong dispersive limit. A thermal population of 5.474 GHz photons at an effective resonator temperature of T = 120mK results in a weak n = 1 photon peak along with the n = 0 photon peak in the qubit spectrum in the absence of a coherent drive on the resonator. Two-tone spectroscopy using independent coupler and probe tones reveals an Autler-Townes splitting in the thermal n = 1 photon peak. The observed effect is explained accurately using the four lowest levels of the dispersively dressed qubit-resonator system and compared to results from numerical simulations of the steady-state master equation for the coupled system.

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Photon number splitting is observed in a transmon coupled to a superconducting quasi-lumped-element resonator in the strong dispersive limit.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1308.2246 [2] arXiv https://arxiv.org/abs/1308.2246 [3] Publisher https://arxiv.org/abs/1308.2246

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