Quantum-enhanced gyroscopy with rotating anisotropic Bose--Einstein condensates

TL;DR

This paper explores the potential of quantum-enhanced atom interferometry using rotating anisotropic Bose--Einstein condensates to improve gyroscope sensitivity, demonstrating feasibility despite modest performance gains.

Contribution

It provides a detailed scheme for quantum-enhanced gyroscopy with Bose--Einstein condensates, including entanglement generation and read-out, highlighting potential advantages over classical systems.

Findings

Quantum enhancement is theoretically possible in atom interferometry.

The scheme involves entanglement, phase imprinting, and read-out steps.

Performance improvements over unentangled systems are modest.

Abstract

High-precision gyroscopes are a key component of inertial navigation systems. By considering matter wave gyroscopes that make use of entanglement it should be possible to gain some advantages in terms of sensitivity, size, and resources used over unentangled optical systems. In this paper we consider the details of such a quantum-enhanced atom interferometry scheme based on atoms trapped in a carefully-chosen rotating trap. We consider all the steps: entanglement generation, phase imprinting, and read-out of the signal and show that quantum enhancement should be possible in principle. While the improvement in performance over equivalent unentangled schemes is small, our feasibility study opens the door to further developments and improvements.