Double-target BEC atomtronic rotation sensor

TL;DR

This paper proposes a novel atomtronic rotation sensor using an array of double-target Bose-Einstein condensates, demonstrating through simulations its potential for precise measurement of rotation speed.

Contribution

It introduces the concept of double-target BECs arranged in an array for rotation sensing and provides simulation results validating its effectiveness.

Findings

Single double-target BECs enable efficient array operation.

A 2x2 array can measure rotation within a specified range.

Simulations confirm the sensor's potential for accurate rotation measurement.

Abstract

We present a proof-of-concept design for an atomtronic rotation sensor consisting of an array of ``double-target'' Bose-Einstein condensates (BECs). A ``target'' BEC is a disk-shaped condensate surrounded by a concentric ring-shaped condensate. A ``double-target'' BEC is two adjacent target BECs whose ring condensates partially overlap. The sensor consists of an $n\times m$ array of these double-target BECs. The measurement of the frame rotation speed, $\Omega_{R}$, is carried out by creating the array of double-target BECs (setup step), inducing one unit of quantized flow in the top ring of each member of the array (initialization step), applying potential barriers in the overlap region of each member (measurement step), and observing whether the induced flow is transferred from the top to the bottom ring in each member (readout step). We describe a set of simulations showing that a single instance of a double-target BEC behaves in a way that enables the efficient operation of an $n\times m$ array for measuring $\Omega_{R}$. As an example of sensor operation we present a simulation showing that a 2$\times$2 array can be designed to measure $\Omega_{R}$ in a user-specified range.