Non-adiabatic holonomies for photonic quantum computing
Year: 2024
Type: article
Abstract: Quantum computation faces a major challenge: the need for stable quantum gates. Holonomies offer a way to increase the stability of quantum gates on a fundamental level, as their functionality directly arises from the geometry of the underlying Hilbert space. We present the quantum optical realization of holonomies as single-qubit quantum gates. Specifically, we implement them in a non-adiabatic scheme, which paves the way for unprecedented miniaturization. To demonstrate their versatility, we realize the Hadamard and Pauli-X gates, experimentally show their non-Abelian nature, and combine them into a single-qubit quantum algorithm, the PQ penny flipover. The planar geometry of our designs enables them to substitute directional couplers currently in widespread use in photonic quantum architectures across all platforms.
Source: Optica Quantum
Institution: University of Rostock
Language: English
Subfield: Artificial Intelligence
Field: Computer Science
Domain: Physical Sciences
Open Access status: diamond
Awards: G1414096802, G1516766362, Quantum correlations in PT-symmetric photonic integrated circuits, GRK 2676: Imaging von Quantensystemen: Photonen, Moleküle und Materialien, G1794731504, Electronic-photonic integrated quantum simulator platform, SFB 1477: LichtMaterieWechselwirkung an Grenzflächen, G3709066324, G4236065584, G5120940563
OpenAlex ID: W4403639710