Hidehiro Yonezawa's Quantum Optics Lab

at UNSW Canberra, Australia

Our research interests lie in quantum optics and quantum information. We have been working on quantum-enhanced protocols and measurements such as quantum teleportation, quantum-enhanced phase estimation, quantum parameter estimation, generation of non-Gaussian quantum states/gates, large-scale quantum entanglement, quantum tomography, quantum control and coherent-feedback control.

Recent activities

2021

September 2021 The paper "Fault-tolerant Coherent H_infinity Control for Linear Quantum Systems" was accepted and appeared as Early Access paper in Transactions on Automatic Control.

September 2021 The paper "Time-domain-multiplexed measurement-based quantum operations with 25-MHz clock frequency" was published in Physical Review Applied.

February 2021 The paper "Two-stage Estimation for Quantum Detector Tomography: Error Analysis, Numerical and Experimental Results" was published in IEEE Transactions on Information Theory.

February 2021 We attended the CQC2T Workshop 2021 (online).

January 2021 The paper "Two-step feedback preparation of entanglement for qubit systems with time delay" was published in Automatica.

2020

December 2020 Our team member, Dr Shota Yokoyama, has been promoted to a lecturer at UNSW Canberra. Congratulations, Shota!

June 2020 The paper "One-hundred step measurement-based quantum computation multiplexed in the time domain with 25 MHz clock frequency" was uploaded in the arXiv.

March 2020 The paper "Fault-tolerant Coherent H-infinity Control for Linear Quantum Systems" was uploaded in the arXiv.

March 2020 The paper "Quantum Hamiltonian Identifiability via a Similarity Transformation Approach and Beyond" was accepted and appeared as Early Access paper in IEEE Transactions on Automatic Control.

March 2020 The paper "Feasibility study of a coherent feedback squeezer" was published in Physical Review A.

February 2020 The paper "Feasibility study of a coherent feedback squeezer" was accepted in Physical Review A.

February 2020 We attended the CQC2T Workshop 2020 in Kingscliff NSW.

2019

December 2019 The paper "Feasibility study of a coherent feedback squeezer" was uploaded in the arXiv.

November 2019 The paper "Characterization of entangling properties of quantum measurement via two-mode quantum detector tomography using coherent state probes" was published in Optics Express.

October 2019 The paper "Generation of time-domain-multiplexed two-dimensional cluster state" was published in the Science.

October 2019 Dr David McManus has joined us as a research associate.

May 2019 The review paper "Sensing and tracking enhanced by quantum squeezing" was published in the Photonic Research.

May 2019 The paper "Two-stage Estimation for Quantum Detector Tomography: Error Analysis, Numerical and Experimental Results" was uploaded in the arXiv.

May 2019 We visited A/Prof Lobino's group at Griffith.

May 2019 We joined CV Quantum Information and Optical Quantum Technology workshop at RMIT.

April 2019 The paper "Filter-Based Feedback Control for a Class of Markovian Open Quantum Systems" was published in the IEEE Control Systems Letters.

April 2019 We held 1st Quantum Science, Engineering and Technology Conference (qSET) at UNSW Canberra.

March 2019 The paper "Time-Domain Multiplexed 2-Dimensional Cluster State: Universal Quantum Computing Platform" was uploaded in the arXiv.

March 2019 The paper "Quantum gate identification: Error analysis, numerical results and optical experiment" was published in the Automatica

February 2019 We joined UTokyo-ANU workshop.

February 2019 Mr Asavanant (PhD student from University of Tokyo) visited us as a junior visiting research fellow.

February 2019 We joined CQC2T annual workshop at Sydney.

January 2019 The paper "Quantum-limited fiber-optic phase tracking beyond 𝜋 range" was published in the Optics Express.

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