Quantum Information & Computation
Volume 25, Issue 5
RESEARCH ARTICLE Open access

Qubit Geometry through Holomorphic Quantization

Ahmad Hazazi Ahmad Sumadi, Nurisya Mohd Shah, Umair Abdul Halim, Hishamuddin Zainuddin

Author affiliations
  • Ahmad Hazazi Ahmad Sumadi1
  • Nurisya Mohd Shah2
  • Umair Abdul Halim3
  • Hishamuddin Zainuddin4
  1. Institute for Mathematical Research (INSPEM), Universiti Putra Malaysia (UPM), UPM Serdang, Selangor Darul Ehsan, Selangor Malaysia
  2. Institute for Mathematical Research (INSPEM), Universiti Putra Malaysia (UPM), UPM Serdang, Selangor Darul Ehsan, Selangor Malaysia; Department of Physics, Universiti Putra Malaysia (UPM), UPM Serdang, Selangor Darul Ehsan, Selangor Malaysia
  3. Institute for Mathematical Research (INSPEM), Universiti Putra Malaysia (UPM), UPM Serdang, Selangor Darul Ehsan, Selangor Malaysia; Center for Foundation Studies in Science of Universiti Putra Malaysia (ASPutra), Universiti Putra Malaysia (UPM), UPM Serdang, Selangor Darul Ehsan, Selangor Malaysia
  4. School of Mathematics and Physics, Xiamen University Malaysia, Jalan Sunsuria, Bandar Sunsuria, Sepang, Selangor Darul Ehsan, Malaysia

pp. 385-396 · 10.2478/qic-2025-0022

Abstract

We develop a wave mechanics formalism for qubit geometry using holomorphic functions and Möbius transformations, providing a geometric perspective on quantum computation. This framework extends the standard Hilbert space description, offering a natural interpretation of standard quantum gates on the Riemann sphere that is examined through their Möbius action on holomorphic wavefunction. These wavefunctions emerge via a quantization process, with the Riemann sphere serving as the classical phase space of the qubit geometry. We quantize this space using Isham’s canonical group quantization with holomorphic polarization, yielding holomorphic wavefunctions and spin angular momentum operators that recover the standard SU (2) algebra with interesting geometric properties. Such properties reveal how geometric transformations induce quantum logic gates on the Riemann sphere, providing a novel perspective on quantum information processing. This result provides a new direction for exploring quantum computation through Isham’s canonical group quantization and its holomorphic polarization method.
Open accessCC BY-NC-ND 4.0

Keywords

  • canonical group quantization
  • compact phase space
  • holomorphic polarization
  • qubit geometry
  • qubit operations

Suggested citation

Ahmad Hazazi Ahmad Sumadi, Nurisya Mohd Shah, Umair Abdul Halim, Hishamuddin Zainuddin (2025). Qubit Geometry through Holomorphic Quantization. Quantum Information & Computation, 25(5), 385-396. https://doi.org/10.2478/qic-2025-0022

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