Creation of bosonic fractional quantum Hall states in exciton-polaritons

• Project/Area Number: 17H04851
• Research Category: Grant-in-Aid for Young Scientists (A)
• Allocation Type: Single-year Grants
• Research Field: Condensed matter physics II
• Research Institution: Institute of Physical and Chemical Research
• Principal Investigator: Fraser Michael 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 (10647051)
• Project Period (FY): 2017-04-01 – 2020-03-31
• Project Status: Completed (Fiscal Year 2019)
• Budget Amount: ¥24,700,000 (Direct Cost: ¥19,000,000、Indirect Cost: ¥5,700,000); Fiscal Year 2019: ¥6,630,000 (Direct Cost: ¥5,100,000、Indirect Cost: ¥1,530,000); Fiscal Year 2018: ¥6,630,000 (Direct Cost: ¥5,100,000、Indirect Cost: ¥1,530,000); Fiscal Year 2017: ¥11,440,000 (Direct Cost: ¥8,800,000、Indirect Cost: ¥2,640,000)
• Keywords: exciton-polariton / quantum Hall / quantized vortex / topological / rapid rotation / polariton / vortex / anyon / Bose-Einstein condensate / quantized vortices / complex potential / bosonic quantum Hall / Haldane model / Quantum Hall / quantum Hall effect / quantised vortex / 光物性 / 量子コンピュータ / 強相関電子系

Outline of Final Research Achievements

The creation of topological states of light and matter was explored using new methodologies, specifically (a) by the rapid rotation of a condensate of microcavity exciton-polaritons, and (b) investigation of new methods to fabricate structured topological and non-Hermitian (control over gain and loss landscape) lattices of exciton-polaritons.

We have created the first experimental technique capable of rapid rotation of polaritons and determined the optimal conditions for realising a bosonic fractional quantum Hall effect. We have verified theoretically, the ability to inject large amounts of angular momentum, as well as the formation of dense vortex lattices. We have also established a new fabrication platform using proton-implantation of semiconductor microcavities, which is capable of creating structured topological and non-Hermitian lattices of polaritons.

Academic Significance and Societal Importance of the Research Achievements

The development of two original platforms for topological states of light in an integrated, non-linear environment moves us towards the realisation of fractional quantum Hall states of light and a robust, controllable source of anyons, enabling potential topological quantum computing applications.

Research Products

• [Journal Article] Measurement of polariton-polariton interaction strength in the Thomas-Fermi regime of polariton condensation (2019)
  • Author(s): E. Estrecho, T. Gao, N. Bobrovska, D. Comber-Todd, M. D. Fraser, M. Steger, K.West, L. N. Pfeiffer, J. Levinsen, M. M. Parish, T. C. H. Liew, M. Matuszewski, D. W. Snoke, A. G. Truscott, E. A. Ostrovskaya
  • Journal Title: Physical Review B Volume: 100 Pages: 035306
  • DOI: https://doi.org/10.1103/PhysRevB.100.035306
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Single-shot condensation of exciton polaritons and the hole burning effect (2018)
  • Author(s): E. Estrecho, T. Gao, N. Bobrovska, M. D. Fraser, M. Steger, L. Pfeiffer, K. West, T. C. H. Liew, M. Matuszewski, D. W. Snoke, A. G. Truscott, and E. A. Ostrovskaya
  • Journal Title: Nature Communications Volume: 9 Pages: 2944
  • DOI: https://doi.org/10.1038/s41467-018-05349-4
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Presentation] Engineering Non-Hermitian potential landscapes in exciton-polariton microcavities (2019)
  • Author(s): Michael D. Fraser
  • Organizer: Progress in the Mathematics of Topological States of Matter AIMR, Tohoku University, Katahira Campus, Sendai
  • Invited
• [Presentation] Engineering topological states of exciton-polaritons with non-Hermitian potentials (2019)
  • Author(s): Michael D. Fraser
  • Organizer: International Workshop Recent Advances in Topological Photonics Korea Center for Theoretical Physics of Complex Systems (PCS) of the Institute for Basic Science in Daejeon, Korea
  • Invited
• [Presentation] "Engineering topologically non-trivial polariton states by non-Hermitian potential lattices" (2019)
  • Author(s): Michael D. Fraser
  • Organizer: "RIKEN Berkeley Workshop on Quantum Information Science (RB19) Lawrence Berkeley National Laboratory, Berkeley, California"
  • Invited
• [Presentation] "Engineering topologically non-trivial polariton states by non-Hermitian potential lattices" (2019)
  • Author(s): Michael D. Fraser
  • Organizer: Center for Theoretical Physics of Complex Systems, Daejong, South Korea
• [Presentation] Engineering topological states by non-Hermitian potentials (2019)
  • Author(s): Michael D. Fraser
  • Organizer: Coherent Network Computing (CNC2019) NTT Atsugi R&D Center/NTT Basic Research Laboratories
• [Presentation] "Engineering topologically non-trivial polariton states by non-Hermitian potential lattices" (2019)
  • Author(s): Michael D. Fraser
  • Organizer: University of Wurzburg, Wurzburg, Germany
• [Presentation] "Engineering topologically non-trivial polariton states by non-Hermitian potential lattices" (2018)
  • Author(s): Michael D. Fraser
  • Organizer: The Australian National University Polariton Workshop
• [Presentation] "Dynamics of exciton-polaritons and engineering of topological non-triviality in non-Hermitian potential lattices lattices" (2018)
  • Author(s): Michael D. Fraser
  • Organizer: 7th CEMS Research Camp, Ikoinomura Heritage Minoyama, Chichibu
  • Invited
• [Presentation] "Realization of a strongly-correlated Haldane model in polaritons lattices" (2018)
  • Author(s): Michael D. Fraser
  • Organizer: "8th CEMS Topical Research Camp on 'Symmetry and Topology' Hotel Maholova Minds Miura"
• [Presentation] Structured complex potentials for exciton-polariton condensates (2018)
  • Author(s): Michael Fraser
  • Organizer: International Conference on Terahertz Emission, Metamaterials and Nanophotonics (TERAMETANANO-3), Uxmal, Mexico
  • Invited
• [Remarks] Quantum-states of exciton-polaritons
  • URL: polariton.riken.jp