activity
20242026
collaborators

5 papers

hep-th2026

Quantization of Algebraic Varieties Defined by Casimir Polynomials via Matrix Regularization: Fuzzy and Beyond

Akifumi Sako

We study the quantization of algebraic varieties defined by equations involving Casimir polynomials of compact semisimple Lie algebras. The Casimir polynomials belong to the Poisso…

hep-th2026

Quantization of Lie-Poisson algebra and Lie algebra solutions of mass-deformed type IIB matrix model

Jumpei Gohara, Akifumi Sako

A quantization of Lie-Poisson algebras is studied. Classical solutions of the mass-deformed Ishibashi-Kawai-Kitazawa-Tsuchiya (IKKT) matrix model can be constructed from semisimple…

math-ph2025

Deformation Quantization with Separation of Variables of

Taika Okuda, Akifumi Sako

We construct a deformation quantization with separation of variables of the Grassmannian . A star product on can be explicitly determined…

hep-th2025

Relationship between a matrix model and harmonic oscillator systems

Harald Grosse, Naoyuki Kanomata, Akifumi Sako +1

A Hermitian matrix model with a Kontsevich-type kinetic term is studied. It was recently discovered that the partition function of this matrix model satisfies the Schröding…

math.DG2024

Explicit formula of deformation quantization with separation of variables for complex two-dimensional locally symmetric Kähler manifold

Taika Okuda, Akifumi Sako

We give a complex two-dimensional noncommutative locally symmetric Kähler manifold via a deformation quantization with separation of variables. We present an explicit formula of i…