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arXiv · 1308.3471

Time-Reversal Symmetrization of Spontaneous Emission for High Fidelity Quantum State Transfer

Srikanth J. Srinivasan·Neereja M. Sundaresan·Darius Sadri·Yanbing Liu·Jay M. Gambetta·Terri Yu·S. M. Girvin·Andrew A. Houck
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Abstract

We demonstrate the ability to control the spontaneous emission from a superconducting qubit coupled to a cavity. The time domain profile of the emitted photon is shaped into a symmetric truncated exponential. The experiment is enabled by a qubit coupled to a cavity, with a coupling strength that can be tuned in tens of nanoseconds while maintaining a constant dressed state emission frequency. Symmetrization of the photonic wave packet will enable use of photons as flying qubits for transfering the quantum state between atoms in distant cavities.

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Srikanth J. Srinivasan, Neereja M. Sundaresan, Darius Sadri, Yanbing Liu, Jay M. Gambetta, Terri Yu, S. M. Girvin, Andrew A. Houck. 2013-08-15. Time-Reversal Symmetrization of Spontaneous Emission for High Fidelity Quantum State Transfer. https://doi.org/10.1103/physreva.89.033857

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