Multi-Qubit Bose-Einstein Condensate Trap for Atomic Boson Sampling

Entropy (Basel). 2022 Dec 3;24(12):1771. doi: 10.3390/e24121771.

Abstract

We propose a multi-qubit Bose-Einstein-condensate (BEC) trap as a platform for studies of quantum statistical phenomena in many-body interacting systems. In particular, it could facilitate testing atomic boson sampling of the excited-state occupations and its quantum advantage over classical computing in a full, controllable and clear way. Contrary to a linear interferometer enabling Gaussian boson sampling of non-interacting non-equilibrium photons, the BEC trap platform pertains to an interacting equilibrium many-body system of atoms. We discuss a basic model and the main features of such a multi-qubit BEC trap.

Keywords: Bose–Einstein condensation; Gaussian boson sampling; NP-hard problem; quantum advantage.