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Ultimate on-chip quantum amplifier
journal contribution
posted on 2013-07-23, 11:04 authored by O.V. Astafiev, A.A. Abdumalikov, Alexandre ZagoskinAlexandre Zagoskin, Yu A. Pashkin, Y. Nakamura, J.S. TsaiWe report amplification of electromagnetic waves by a single artificial atom in open 1D space. Our
three-level artificial atom—a superconducting quantum circuit—coupled to a transmission line presents
an analog of a natural atom in open space. The system is the most fundamental quantum amplifier whose
gain is limited by a spontaneous emission mechanism. The noise performance is determined by the
quantum noise revealed in the spectrum of spontaneous emission, also characterized in our experiments.
History
School
- Science
Department
- Physics
Citation
ASTAFIEV, O.V. ... et al, 2010. Ultimate on-chip quantum amplifier. Physical Review Letters, 104 (18), 183603.Publisher
© The American Physical SocietyVersion
- VoR (Version of Record)
Publication date
2010Notes
This article was published in the journal, Physical Review Letters [© The American Physical Society]. It is also available at: http://dx.doi.org/10.1103/PhysRevLett.104.183603ISSN
0031-9007eISSN
1079-7114Publisher version
Language
- en