| Outline of Annual Research Achievements |
We have obtained very many research achievements published in excellent physics journals, which were evaluated by many expert referees from all over the world. The 9 examples below are from PRL, which is very highly selective.
Unconventional Quantum Sound-Matter Interactions in Spin-Optomechanical-Crystal Hybrid Systems, PRL 126, 203601 (2021). Purifying Deep Boltzmann Machines for Thermal Quantum States, PRL 127, 060601 (2021). Generating Long-Lived Macroscopically Distinct Superposition States in Atomic Ensembles, PRL 127, 093602 (2021). Quantum State Tomography with Conditional Generative Adversarial Networks, PRL 127, 140502 (2021). General Bound on the Performance of Counter-Diabatic Driving Acting on Dissipative Spin Systems, PRL 127, 150401 (2021). Higher-Order Weyl-Exceptional-Ring Semimetals, PRL 127, 196801 (2021). Dissipative Topological Phase Transition with Strong System-Environment Coupling, PRL 127, 250402 (2021). Quantum Squeezing Induced Optical Nonreciprocity, PRL 128, 083604 (2022). Metrological Characterization of Non-Gaussian Entangled States of Superconducting Qubits, PRL 128, 150501 (2022).
We have also published in other top journals. The results are summarized in the title and our web site provides very easy access to all of our papers.
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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
The research activities have been very successful. We published many papers in excellent physics journals, which were evaluated by very many expert referees from all over the world. Five examples published in Science and Nature journals are listed below:
All-optical reversible single-photon isolation at room temperature, Science Adv. 7, eabe8924 (2021). Particle-like topologies in light, Nature Comm 12, 6785 (2021). Experimental demonstration of coherence flow in PT- and anti-PT-symmetric systems, Comm. Physics 4, 223 (2021). Field theory spin and momentum in water waves, Science Adv. 8, eabm1295 (2022). Topological dissipation in a time-multiplexed photonic resonator network, Nature Phys. 18, pp. 442-449 (2022).
Other publications in very visible journals include: Exceptional Point and Cross-Relaxation Effect in a Hybrid Quantum System, PRX Quantum 2, 020307 (2021). Demonstration of one-shot coherence distillation, Optica 8, pp. 1003-1008 (2021). Matrix-Model Simulations Using Quantum Computing, Deep Learning, and Lattice Monte Carlo, PRX Quantum 3, 010324 (2022).
In November 2021, for the 5th year in a row, the PI was listed as a “Highly Cited Researcher” (less than 0.1% of physicists are selected) based on the Web of Science data. The only non-Japanese in the Physics category in history for work done in Japan (11 in total for all of Japan in 2017, 8 total for 2018, 7 in 2019, and 8 in 2020). This because, during the last decade, his research group produced more than 40 highly cited publications.
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| Strategy for Future Research Activity |
We plan to continue obtaining new results, to be evaluated by top experts from all over the world. These many expert referees repeatedly evaluate our work, and 1,000s of readers study and cite our works. Thus, these are having an impact.
According to Research Gate, our work has been, and still is, listed there as “the most read contributions from your institution”. This has been the case for several years.
We will continue studying (superconducting and semiconducting) quantum devices as “Artificial Atoms”, and we are elucidating how these “giant atoms” interact with light, transmission lines, (electro-magnetic or mechanical) resonators, and to use the gained knowledge for designing on-chip hybrid quantum processors, quantum controllers and quantum sensors. Particular emphasis is being placed on optomechanics and the ultra-strong coupling limit of cavity QED. We are doing this through theoretical and computational methods and in close collaboration with various experimentalists. We are testing the developed models and the performance of designed quantum devices through our existing collaborations with several experimental groups with whom we have already published together. With these devices it is possible to create circuit analogues and simulations of many quantum phenomena.
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