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Expanded bandwidth for production of the optical vortex by cyclotron radiation

Research Project

Project/Area Number 18K03466
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 13010:Mathematical physics and fundamental theory of condensed matter physics-related
Research InstitutionOsaka Metropolitan University (2022-2023)
Osaka Prefecture University (2018-2021)

Principal Investigator

GARMON Savannah Sterling  大阪公立大学, 大学院理学研究科, 准教授 (30733860)

Project Period (FY) 2018-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2018: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywordsoptical vortex / non-Markovian dynamics / bound state in continuum / continuum threshold / exceptional point / radiation damping / waveguide / non-Markovian decay / dynamical control / cyclotron / PT-symmetry / exceptional manifold / orbital angular momentum / cyclotron motion / cut-off frequency
Outline of Final Research Achievements

I have published four works that explore various protocols and ideas for quantum dynamical control in a model-independent context. And I have published one work on the classical radiation damping problem of a charged particle undergoing cyclotron motion inside a rectangular waveguide. The final work on the production of the optical vortex in a cylindrical waveguide will be published soon.

Among the four model-independent works, one establishes the dynamics occurring when an emitting system is tuned to the continuum threshold (or cut-off mode in a waveguide) in an effective 1-D system. I showed the presence of an anomalous-order exceptional point that drives the dynamics, resulting in a power-law decay with fractional exponent. This was written in terms of a quantum system but it would apply for the particle undergoing cyclotron motion as well when the frequency is tuned to the cut-off mode in the waveguide.

Academic Significance and Societal Importance of the Research Achievements

The optical vortex has many uses or proposed uses, from optical tweezers to quantum information processing. However a limitation has been that it is difficult to produce outside the optical regime. Our results should provide a step forward to remedying this limitation.

Report

(7 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (35 results)

All 2024 2023 2022 2021 2020 2019 2018 Other

All Int'l Joint Research (8 results) Journal Article (6 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 4 results,  Open Access: 3 results) Presentation (21 results) (of which Int'l Joint Research: 6 results,  Invited: 6 results)

  • [Int'l Joint Research] Butler University/University of Texas(米国)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] Butler University/University of Texas(米国)

    • Related Report
      2022 Research-status Report
  • [Int'l Joint Research] Butler University(米国)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] Butler University(米国)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] Butler University(米国)

    • Related Report
      2019 Research-status Report
  • [Int'l Joint Research] University of Toronto(カナダ)

    • Related Report
      2019 Research-status Report
  • [Int'l Joint Research] Butler University(米国)

    • Related Report
      2018 Research-status Report
  • [Int'l Joint Research] University of Toronto(カナダ)

    • Related Report
      2018 Research-status Report
  • [Journal Article] Enhanced Classical Radiation Damping of Electronic Cyclotron Motion in the Vicinity of the Van Hove Singularity in a Waveguide2024

    • Author(s)
      Goto Yuki、Garmon Savannah、Petrosky Tomio
    • Journal Title

      Progress of Theoretical and Experimental Physics

      Volume: 2024 Issue: 3 Pages: 1-25

    • DOI

      10.1093/ptep/ptae021

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Coherent single-spin electron resonance spectroscopy manifested at an exceptional-point singularity in doped polyacetylene2021

    • Author(s)
      Dunham Yujin、Kanki Kazuki、Garmon Savannah、Tanaka Satoshi、Ordonez Gonzalo
    • Journal Title

      Physical Review A

      Volume: 103 Issue: 4 Pages: 043513-043513

    • DOI

      10.1103/physreva.103.043513

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Anomalous-order exceptional point and non-Markovian Purcell effect at threshold in one-dimensional continuum systems2021

    • Author(s)
      Garmon Savannah、Ordonez Gonzalo、Hatano Naomichi
    • Journal Title

      Physical Review Research

      Volume: 3 Issue: 3 Pages: 033029-033029

    • DOI

      10.1103/physrevresearch.3.033029

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Reservoir-assisted symmetry breaking and coalesced zero-energy modes in an open PT-symmetric Su-Schrieffer-Heeger model2021

    • Author(s)
      Garmon Savannah、Noba Kenichi
    • Journal Title

      Physical Review A

      Volume: 104 Issue: 6

    • DOI

      10.1103/physreva.104.062215

    • Related Report
      2021 Research-status Report
  • [Journal Article] Characteristic influence of exceptional points in quantum dynamics2021

    • Author(s)
      Garmon Savannah、Sawada Takafumi、Noba Kenichi、Ordonez Gonzalo
    • Journal Title

      Journal of Physics: Conference Series

      Volume: 2038 Issue: 1 Pages: 012011-012011

    • DOI

      10.1088/1742-6596/2038/1/012011

    • Related Report
      2021 Research-status Report
  • [Journal Article] Non-Markovian dynamics revealed at a bound state in the continuum2019

    • Author(s)
      Garmon Savannah、Noba Kenichi、Ordonez Gonzalo、Segal Dvira
    • Journal Title

      Physical Review A

      Volume: 99 Issue: 1 Pages: 1-6

    • DOI

      10.1103/physreva.99.010102

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Topological exceptional point and spectral properties of a quantum emitter attached to a semi-infinite reservoir with chiral sublattice symmetry2023

    • Author(s)
      Savannah Garmon, Kenichi Noba, Gonzalo Ordonez, Federico Roccati
    • Organizer
      StatPhys28
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Non-exponential dynamics near the continuum threshold: bound states, anti-bound states and exceptional points2023

    • Author(s)
      Savannah Garmon
    • Organizer
      Stat&QuantPhys Winter School 2024 (SQP2024)
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Dynamics of a quantum emitter coupled to a topological structured reservoir2023

    • Author(s)
      Savannah Garmon
    • Organizer
      POS&BYD: Physics of Open Systems and Beyond
    • Related Report
      2023 Annual Research Report
  • [Presentation] Reservoir-assisted symmetry breaking and coalesced zero-energy modes in an open PT-symmetric SSH model2022

    • Author(s)
      Savannah Garmon, Kenichi Noba
    • Organizer
      Non-Hermitian Quantum Mechanics 2022
    • Related Report
      2022 Research-status Report
  • [Presentation] Localization, topology and symmetry-breaking properties of an open PT-symmetric Su-Schrieffer-Heeger model2022

    • Author(s)
      Savannah Garmon, Kenichi Noba
    • Organizer
      Localisation 2022
    • Related Report
      2022 Research-status Report
  • [Presentation] Topologically-protected states and their dynamical influence in structured reservoirs with chiral sublattice symmetry2022

    • Author(s)
      Savannah Garmon
    • Organizer
      American Physical Society March Meeting 2023
    • Related Report
      2022 Research-status Report
  • [Presentation] Non-Markovian dynamics revealed at the bound state in continuum2022

    • Author(s)
      Savannah Garmon
    • Organizer
      Canadian Conference for Undergraduate Women in Physics (CCUWiP)
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Reservoir-assisted symmetry breaking and coalesced zero-energy modes in an open PT-symmetric Su-Schrieffer-Heeger model2022

    • Author(s)
      Savannah Garmon, Kenichi Noba
    • Organizer
      American Physical Society March Meeting
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Anomalous exceptional point and non-Markovian Purcell effect at threshold in 1-D continuum systems2022

    • Author(s)
      Savannah Garmon, Gonzalo Ordonez, Naomichi Hatano
    • Organizer
      REIMEI Workshop on “Open quantum mechanics in nuclear, hadron and condensed-matter systems”
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] Spectral phase diagram and fourth-order exceptional curves in an open PT-symmetric Su-Schrieffer-Heeger model2021

    • Author(s)
      Savannah Garmon, Kenichi Noba
    • Organizer
      Japan Physical Society Autumn Meeting
    • Related Report
      2021 Research-status Report
  • [Presentation] Reservoir-assisted symmetry breaking in an open PT-symmetric Su-Schrieffer-Heeger model2021

    • Author(s)
      Kenichi Noba, Savannah Garmon
    • Organizer
      Japan Physical Society Autumn Meeting
    • Related Report
      2021 Research-status Report
  • [Presentation] Coexistence of exceptional ring and exceptional surface in a doped molecular chain2021

    • Author(s)
      Savannah Garmon
    • Organizer
      ICTS Non-Hermitian Physics (Online)
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] Coexistence of exceptional ring and exceptional surface in a doped molecular chain2021

    • Author(s)
      Savannah Garmon, Yujin Dunham, Kazuki Kanki, Gonzalo Ordonez, Satoshi Tanaka
    • Organizer
      American Physical Society March Meeting 2021
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Anomalous exceptional point and non-Markovian Purcell effect at threshold in 1-D continuum systems2020

    • Author(s)
      Savannah Garmon
    • Organizer
      virtual Pseudo-Hermitian Hamiltonians in Quantum Physics (vPHHQP)
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] Anomalous exceptional point and non-Markovian Purcell effect at threshold in 1-D open quantum systems2020

    • Author(s)
      Savannah Garmon
    • Organizer
      American Physical Society March Meeting 2020
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Anomalous exceptional point and non-Markovian Purcell effect at threshold in 1-D continuum systems2020

    • Author(s)
      Savannah Garmon
    • Organizer
      Japan Physical Society 2020 Annual Meeting
    • Related Report
      2019 Research-status Report
  • [Presentation] Non-Markovian dynamics revealed at the bound state in continuum2019

    • Author(s)
      Savannah Garmon
    • Organizer
      Stat Phys 27 - International Conference on Statistical Physics
    • Related Report
      2019 Research-status Report
  • [Presentation] Non-Markovian dynamics revealed at the bound state in continuum2019

    • Author(s)
      Savannah Garmon
    • Organizer
      American Physical Society March Meeting 2019
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Measuring non-exponential decay at the bound state in continuum2018

    • Author(s)
      Savannah Garmon
    • Organizer
      Japan Physical Society 2019 Autumn Meeting
    • Related Report
      2018 Research-status Report
  • [Presentation] Measuring non-exponential decay at the bound state in continuum2018

    • Author(s)
      Savannah Garmon
    • Organizer
      EXCON 2018
    • Related Report
      2018 Research-status Report
  • [Presentation] Measuring non-exponential decay at the bound state in continuum2018

    • Author(s)
      Savannah Garmon
    • Organizer
      Non-Hermitian Physics - PHHQP XVIII
    • Related Report
      2018 Research-status Report
    • Invited

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Published: 2018-04-23   Modified: 2025-01-30  

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