Single-Photon Transistor in Circuit Quantum Electrodynamics

Lukas Neumeier*, Martin Leib, Michael J. Hartmann

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

95 Citations (Scopus)


We introduce a circuit quantum electrodynamical setup for a "single-photon" transistor. In our approach photons propagate in two open transmission lines that are coupled via two interacting transmon qubits. The interaction is such that no photons are exchanged between the two transmission lines but a single photon in one line can completely block or enable the propagation of photons in the other line. High on-off ratios can be achieved for feasible experimental parameters. Our approach is inherently scalable as all photon pulses can have the same pulse shape and carrier frequency such that output signals of one transistor can be input signals for a consecutive transistor.

Original languageEnglish
Article number063601
JournalPhysical Review Letters
Issue number6
Publication statusPublished - 6 Aug 2013

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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