A Novel q-Derivative Framework with Applications to q-Deformed Thermodynamics and Leakage Suppression in Superconducting Qubits
quant-ph, cond-mat.stat-mech
Submitted: 2026-09-24
Updated: 2026-09-24
Comments: 23 pages, 3 figures
License: http://creativecommons.org/licenses/by/4.0/
The gist: We propose a new q-derivative operator built directly from Jackson's q-number formulation, designed to preserve the structural properties of standard differential calculus while incorporating
Terminology
Abstract
We propose a new q-derivative operator built directly from Jackson's q-number formulation, designed to preserve the structural properties of standard differential calculus while incorporating deformation effects. By analyzing q-deformed Heisenberg algebras, we demonstrate that this formulation maintains the consistency of thermodynamic quantities-such as internal energy, particle number, and specific heat-in dilute gas limits without requiring ad-hoc chain-rule modifications. Furthermore, we explore the physical implications of algebraic deformation using the Biedenharn-Macfarlane realization, showing how q-deformation induces intrinsic anharmonicity in quantum oscillator spectra and affects multi-level quantum systems (d 3). Applying this algebraic scheme to superconducting transmon qubits, we derive analytical pulse-shaping corrections that generalize the Derivative Removal by Adiabatic Gate (DRAG) technique, offering a robust method to suppress computational leakage in ultra-fast quantum logic operations.
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