2017 Fiscal Year Annual Research Report
New regimes of quantum optics in giant artificial atoms and hybrid systems
| Project/Area Number |
17F15750
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| Research Institution | Institute of Physical and Chemical Research |
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Principal Investigator |
NORI FRANCO 国立研究開発法人理化学研究所, 創発物性科学研究センター, グループディレクター (50415262)
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| Co-Investigator(Kenkyū-buntansha) |
FRISK KOCKUM ANTON 国立研究開発法人理化学研究所, 創発物性科学研究センター, 外国人特別研究員
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| Project Period (FY) |
2017-07-26 – 2018-03-31
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| Keywords | quantum circuits / quantum optics / giant atoms |
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| Outline of Annual Research Achievements |
In FY2017, I was a co-author of 9 published scientific articles, some of which where published in highly regarded journals like Physical Review X, Nature Communications, and Physical Review Letters (PRL). Another 3 articles were submitted (1 of them has since been published in PRL) and several more articles are in the works, including a large review on ultrastrong coupling between light and matter. I have given 7 talks and 2 poster presentation at international conferences, workshops, and seminars. See attached list for details.
My articles include several on the topic of ultrastrong light-matter coupling. Together with the group of professor Salvatore Savasta, we have shown how this regime allows analogs of nonlinear optics, many-body interactions among atoms, and observation of the dynamical Casimir effect at lower mechanical frequencies than previously thought, and introduces new subtleties for photon detection and virtual excitations.
I completed the most comprehensive review ever of quantum optics with superconducting quantum circuits; this has become highly cited. I also studied the physics of giant atoms, i.e., atoms coupled to photons at multiple points separated by a large distance (several wavelengths). I provided theory support for two experiments: the first ever demonstration of coupling between a superconducting qubit and a resonator for surface acoustic waves and a demonstration of amplification without population inversion in a driven superconducting qubit.
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| Research Progress Status |
29年度が最終年度であるため、記入しない。
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| Strategy for Future Research Activity |
29年度が最終年度であるため、記入しない。
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