Skip to content
DraconiticResearch
Search Sources API
190,851 studies31 sourcesUpdated 16 min ago
Peer-reviewedCC BY 4.0Quantum

Fast Bosonic Control via Multiphoton Qubit-Oscillator Interactions

  • Noah Gorgichuk1,2,3
  • Mohammad Ayyash3
  • Matteo Mariantoni1,2,3
  • Sahel Ashhab4,5,6
6 affiliations
  1. 1Institute for Quantum Computing, University of Waterloo, 200 University Avenue West, Waterloo, Ontario N2L 3G1, Canada
  2. 2Department of Physics and Astronomy, University of Waterloo, 200 University Avenue West, Waterloo, Ontario N2L 3G1, Canada
  3. 3Red Blue Quantum Inc., 72 Ellis Crescent North, Waterloo, Ontario N2J 3N8, Canada
  4. 4Advanced ICT Research Institute, National Institute of Information and Communications Technology, 4-2-1, Nukui-Kitamachi, Koganei, Tokyo 184-8795, Japan
  5. 5Research Institute for Science and Technology, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
  6. 6Department of Physics, The University of Tokyo, Tokyo 113-0033, Japan
Open at sourcePDFDOICite

Abstract

We study the problem of n -fold rotationally symmetric bosonic state preparation, which is of great importance to bosonic quantum error correction, using a multiphoton interaction between an oscillator and an auxiliary qubit. We present an n -photon Law-Eberly ( n LE) protocol that serves as an analytic baseline, alongside numerical optimal control calculations that further reduce state preparation time. We find that multiphoton control protocols substantially reduce preparation times for binomial, cat, and Gottesman-Kitaev-Preskill codewords compared to schemes relying on standard linear interactions. Further, we achieve arbitrary control over the oscillator's Hilbert space by combining different multiphoton interaction orders. We also extend these control improvements to the preparation of rotationally symmetric multi-oscillator states. Lastly, numerical simulations using realistic planar superconducting circuit parameters validate the robustness of our scheme against qubit and oscillator decoherence. Our findings can significantly enhance the performance of bosonic codes on planar superconducting hardware, an important ingredient for scalable fault-tolerant quantum computers.

Related

  1. Modulation and protection of entanglement in a two-qubit system via two interacting oscillator control
    Pablo Carlos López Vázquez, Andrés García, Josué Romero
    arXivPreprintarXiv licenceFull textQuantum physics & quantum informationarXiv
  2. Near-optimal synthesis of non-Gaussian phase gates via qubit-oscillator Rabi control
    Zhen Yang, Shan Jin, Zi-Wen Liu +1
    arXivPreprintCC BY 4.0Full textQuantum physics & quantum informationarXiv
  3. Bosonic quantum control with a weakly coupled fluxonium qubit
    Anaida Ali, Shantanu R. Jha, Shoumik D. Chowdhury +4
    arXivPreprintCC BY 4.0Full textQuantum physics & quantum informationarXiv
  4. Dynamically modulated light-matter interactions for ancilla-tolerant bosonic control
    Aniket Maiti, John W. O. Garmon, Daniel K. Weiss +4
    arXivPreprintarXiv licenceFull textQuantum physics & quantum informationarXiv
  5. From Qubit Tensorization to Gaussian Optimizers in Bosonic Systems
    Salman Beigi, Hami Mehrabi
    arXivPreprintarXiv licenceFull textQuantum physics & quantum informationarXiv

Cite

BibTeXRIS
BibTeX
@article{gorgichuk2026fast,
  title = {{Fast Bosonic Control via Multiphoton Qubit-Oscillator Interactions}},
  author = {Noah Gorgichuk and Mohammad Ayyash and Matteo Mariantoni and Sahel Ashhab},
  journal = {Quantum},
  year = {2026},
  month = oct,
  doi = {10.22331/q-2026-10-01-2224},
  url = {https://quantum-journal.org/papers/q-2026-10-01-2224/},
  note = {CC BY 4.0},
}
RIS
TY  - JOUR
TI  - Fast Bosonic Control via Multiphoton Qubit-Oscillator Interactions
AU  - Noah Gorgichuk
AU  - Mohammad Ayyash
AU  - Matteo Mariantoni
AU  - Sahel Ashhab
PY  - 2026
DA  - 2026/10/01
JO  - Quantum
DO  - 10.22331/q-2026-10-01-2224
UR  - https://quantum-journal.org/papers/q-2026-10-01-2224/
AB  - We study the problem of n -fold rotationally symmetric bosonic state preparation, which is of great importance to bosonic quantum error correction, using a multiphoton interaction between an oscillator and an auxiliary qubit. We present an n -photon Law-Eberly ( n LE) protocol that serves as an analytic baseline, alongside numerical optimal control calculations that further reduce state preparation time. We find that multiphoton control protocols substantially reduce preparation times for binomial, cat, and Gottesman-Kitaev-Preskill codewords compared to schemes relying on standard linear interactions. Further, we achieve arbitrary control over the oscillator's Hilbert space by combining different multiphoton interaction orders. We also extend these control improvements to the preparation of rotationally symmetric multi-oscillator states. Lastly, numerical simulations using realistic planar superconducting circuit parameters validate the robustness of our scheme against qubit and oscillator decoherence. Our findings can significantly enhance the performance of bosonic codes on planar superconducting hardware, an important ingredient for scalable fault-tolerant quantum computers.
SN  - 2521-327X
ER  -