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arXiv:1308.3471 · Physical Review A

Time-reversal symmetrization of spontaneous emission for quantum state transfer

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

Published Mar 31, 2014• 58 citations
arXivHTMLPDF

Abstract

We demonstrate the ability to control 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 transferring the quantum state between atoms in distant cavities.

DOI
10.1103/physreva.89.033857

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