Ultrastrong coupling of a single artificial atom to an electromagnetic continuum in the nonperturbative regime
| العنوان: | Ultrastrong coupling of a single artificial atom to an electromagnetic continuum in the nonperturbative regime |
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| المؤلفون: | Borja Peropadre, Ron Belyansky, Adrian Lupascu, M. A. Yurtalan, Juan José García-Ripoll, Christopher Wilson, P. Forn-Díaz, Jean-Luc Orgiazzi |
| المساهمون: | Ministerio de Economía y Competitividad (España), University of Waterloo, Air Force Office of Scientific Research (US), Ministry of Research, Innovation and Science (Ontario), Canada Foundation for Innovation, Natural Sciences and Engineering Research Council of Canada, Comunidad de Madrid, European Commission |
| المصدر: | Digital.CSIC. Repositorio Institucional del CSIC instname |
| بيانات النشر: | Nature Publishing Group, 2017. |
| سنة النشر: | 2017 |
| مصطلحات موضوعية: | Physics, Quantum optics, Waveguide (electromagnetism), Quantum Physics, Quantum information, Condensed Matter - Superconductivity, Physical system, FOS: Physical sciences, General Physics and Astronomy, 7. Clean energy, 01 natural sciences, 010305 fluids & plasmas, Superconductivity (cond-mat.supr-con), Quantum technology, Coupling (physics), Quantum mechanics, 0103 physical sciences, Atom, Superconducting devices, Spontaneous emission, Quantum Physics (quant-ph), 010306 general physics, Quantum information science, Qubits |
| الوصف: | 19 pags., 4 figs. The study of light-matter interaction has led to important advances in quantum optics and enabled numerous technologies. Over recent decades, progress has been made in increasing the strength of this interaction at the single-photon level. More recently, a major achievement has been the demonstration of the so-called strong coupling regime, a key advancement enabling progress in quantum information science. Here, we demonstrate light-matter interaction over an order of magnitude stronger than previously reported, reaching the nonperturbative regime of ultrastrong coupling (USC). We achieve this using a superconducting artificial atom tunably coupled to the electromagnetic continuum of a one-dimensional waveguide. For the largest coupling, the spontaneous emission rate of the atom exceeds its transition frequency. In this USC regime, the description of atom and light as distinct entities breaks down, and a new description in terms of hybrid states is required. Beyond light-matter interaction itself, the tunability of our system makes it a promising tool to study a number of important physical systems, such as the well-known spin-boson and Kondo models. We acknowledge financial support from NSERC of Canada, the Canadian Foundation for Innovation, the Ontario Ministry of Research and Innovation, Industry Canada, Canadian Microelectronics Corporation, EU FP7 FET-Open project PROMISCE, Spanish Mineco Project FIS2012-33022 and CAM Network QUITEMAD+. B.P. acknowledges the Air Force of Scientific Research for support under award FA9550-12-1-0046. The University of Waterloo’s Quantum NanoFab was used for this work. |
| تدمد: | 2012-3302 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::23f6f8a20638ff0c382822063c77cc91 http://hdl.handle.net/10261/159695 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....23f6f8a20638ff0c382822063c77cc91 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 20123302 |
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