Pairing particles into holonomies

TL;DR

This paper introduces a new class of multi-particle quantum holonomies, demonstrating their construction and experimental realization, which enhances the design flexibility for quantum computation and simulation.

Contribution

The paper develops a comprehensive framework for multi-particle holonomies and experimentally demonstrates two-particle holonomies in integrated photonics, expanding the design space.

Findings

Multi-particle holonomies can exist without single-particle counterparts.

Experimental realization of two-particle holonomies in integrated photonics.

Particle number as a new design parameter for holonomies.

Abstract

Holonomies are of great interest to quantum computation and simulation. The geometrical nature of these entities offers increased stability to quantum gates. Furthermore, symmetries of particle physics are naturally reflected in holonomies, making them ideally suited for quantum simulation of quantum chromodynamics and grand unified theories. Yet, practically designing quantum holonomies with the required properties and scale is challenging. Here, we construct a new class of holonomies by increasing the particle number. We show that multi-particle holonomies can even exist in systems devoid of any single-particle holonomies. We present a comprehensive framework for multi-particle quantum holonomies and experimentally realize various two-particle holonomies in integrated photonics. Our results enable particle number to be harnessed as a design parameter, offering increased freedom in constructing holonomies for quantum computation and simulation.