Honors College Theses
Publication Date
5-9-2022
Major
Physics (B.S.P.)
Document Type and Release Option
Thesis (open access)
Faculty Mentor
Dr. Mark Edwards
Abstract
We propose an atomtronic rotation sensor design that consists of an array of Bose-Einstein Condensates (BECs) that are confined in a double-target-array potential. The rotation sensor's purpose is to measure the speed of the rotating frame, with respect to the “fixed stars", the sensor rests in. The atomtronic system is an ultracold gas of sodium atoms that have been compressed by laser light into a thin quasi-2D horizontal plane and further confined in the horizontal plane by a double-target-array potential. A target BEC is a combination of disk BEC that is surrounded by a ring BEC. A double-target BEC is a combination of two target BECs that partially overlap on the midtracks of each ring. The sensor itself is an n-row and m-column array of these double-target BECs. The sensor performs measurements by first creating the array of double-target BECs (setup), inducing flow in the top rings of each member of the array (initialization), applying potential barriers in the each of the members' overlap regions (measurement), and observing if the induced flow is transferred from the top ring to the bottom ring in each member (readout). We describe sets of simulations performed that show how a 1-by-1 array behaves such that it allows us to provide the correct operation of an n-by-m array for measuring the rotation speed. As a proof-of-concept for the sensor's operation, we finally present simulations of an example 2-by-2 double-target BEC array that has been designed to measure the rotation speed in a user-defined range.
Thesis Summary
We propose an atomtronic rotation sensor design that consists of an array of Bose-Einstein Condensates (BECs) that are confined in a double-target-array potential. The rotation sensor's purpose is to measure the speed of the rotating frame, with respect to the “fixed stars", the sensor rests in. The atomtronic system is an ultracold gas of sodium atoms that have been compressed by laser light into a thin quasi-2D horizontal plane and further confined in the horizontal plane by a double-target-array potential. A target BEC is a combination of disk BEC that is surrounded by a ring BEC. A double-target BEC is a combination of two target BECs that partially overlap on the midtracks of each ring. The sensor itself is an n-row and m-column array of these double-target BECs. The sensor performs measurements by first creating the array of double-target BECs (setup), inducing flow in the top rings of each member of the array (initialization), applying potential barriers in the each of the members' overlap regions (measurement), and observing if the induced flow is transferred from the top ring to the bottom ring in each member (readout). We describe sets of simulations performed that show how a 1-by-1 array behaves such that it allows us to provide the correct operation of an n-by-m array for measuring the rotation speed. As a proof-of-concept for the sensor's operation, we finally present simulations of an example 2-by-2 double-target BEC array that has been designed to measure the rotation speed in a user-defined range.
Recommended Citation
Henry, Charles B., "Circulation Transfer between adjacent target Bose-Einstein Condensates" (2022). Honors College Theses. 769.
https://digitalcommons.georgiasouthern.edu/honors-theses/769
