2015 Fiscal Year Annual Research Report
| Project/Area Number |
15H02118
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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) |
ブリオック コスティアンティン 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, 研究員 (00724840)
LAMBERT NEILL 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, 研究員 (80525915)
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Keywords | Quantum electronics / Quantum Optics |
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| Outline of Annual Research Achievements |
We have obtained significant results in the following problems:
Quantum spin Hall effect of light [Science 2015]; Spin-orbit interactions of light [Nature Photonics 2015]; Transverse and longitudinal angular momenta of light [Phys Rep 2015]; Gate-Sensing Coherent Charge Oscillations in a Silicon Field-Effect Transistor [Nano Lett. 2016]; Quantifying Non-Markovianity with Temporal Steering [PRL 2016]; Entangling superconducting qubits in a multi-cavity system [NJP 2016]; Tunable multiphonon blockade in coupled nanomechanical resonators [PRA 2016]; Multiphoton quantum Rabi oscillations in ultrastrong cavity QED [PRA 2015]; Effects of anisotropy and disorder on the conductivity of Weyl semimetals [PRB 2015]; Certifying single-system steering for quantum-information processing [PRA 2015]; Bistable Photon Emission from a Solid-State Single-Atom Laser [PRL 2015]; Giant nonlinearity via breaking parity-time symmetry [PRB 2015]; Coherent manipulation of a Majorana qubit by a mechanical resonator [PRB 2015]; Squeezed Optomechanics with Phase-matched Amplification [PRL 2015]; Enhancement of mechanical effects of single photons in optomechanics [PRA 2015]; Non-Markovian Complexity in the Quantum-to-Classical Transition [Sci Rep 2015]; Dynamic creation of a topologically-ordered Hamiltonian [Sci Rep 2015];Optomechanically-Induced Transparency in parity-time-symmetric microresonators [Sci. Rep. 2015]; Circuit analog of quadratic optomechanics [PRA 2015].
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| Current Status of Research Progress |
Current Status of Research Progress
1: Research has progressed more than it was originally planned.
Reason
Our results are better than initially expected. This is evidenced by the fact that referees from the very top journals (Science, Nat. Photon., PRL, Physics Reports, etc.) have been enthusiastic about the quality and significance of our research results.
We plan to continue research in the same general area. Instead of providing another list of projects, let me focus on one example, accepted in Nat. Phot.
Optomechanically induced stochastic resonance and chaos transfer between optical fields: Chaotic dynamics has been reported in many physical systems and has affected almost every field of science. Chaos involves hypersensitivity to the initial conditions of a system and introduces unpredictability into its output. Thus, it is often unwanted. Interestingly, the very same features make chaos a powerful tool to suppress decoherence, achieve secure communication and replace background noise in stochastic resonance; a counterintuitive concept that a system's ability to transfer information can be coherently amplified by adding noise. Here, we report the first demonstration of chaos-induced stochastic resonance in an optomechanical system, as well as the optomechanically mediated chaos transfer between two optical fields such that they follow the same route to chaos. These results will contribute to the understanding of nonlinear phenomena and chaos in optomechanical systems, and may find applications in the chaotic transfer of information and for improving the detection of otherwise undetectable signals in optomechanical systems.
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| Strategy for Future Research Activity |
We plan to continue doing interdisciplinary theoretical and computational investigations at the intersection of quantum optics, atomic physics, and condensed matter physics in the context of engineered quantum micro- and nano-electronics. Semi- and super-conducting electrical devices provide an unprecedented platform for experimentally realizing controlled and designable quantum systems. With these devices it is possible to create circuit analogues and simulations of quantum phenomena from a wide range of fields of physics. We will also continue investigating other related topics at the interface with optics, which we pioneered in our group. Interdisciplinary research of this type (done in collaboration with experimental groups) will continue catalyzing discoveries and make new connections between various subfields of physics, thus paving the way to future quantum technologies.
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| Remarks |
This past year has been remarkably productive, with publications in very good journals. We are very grateful for the support provided by this Kakenhi (A).
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