Systems and methods for quantum sensing using solid-state spin ensembles

US11940399B2 · kind B2 · utility

Assignees

• UNIVERSITY OF MARYLAND, COLLEGE PARK · US
• President and Fellows of Harvard College · US

Inventors

• Ronald L. Walsworth · Cambridge, US
• Nithya Arunkumar · Waltham, US
• Connor Hart · Cambridge, US
• Dominik Bucher · Puchheim, DE
• David Glenn · Cambridge, US

Key dates

• Filing date: Jun 1, 2022
• Grant date: Mar 26, 2024
• Expiry date: Jun 1, 2042

Classification

• Technology area (CPC G): Physics
• CPC primary: G01R33/26
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Systems and methods of quantum sensing include obtaining information regarding a target signal in electronic spin states of quantum defects in an ensemble of quantum defects, mapping the information regarding the target signal from the electronic spin states of the quantum defects to corresponding nuclear spin states associated with the quantum defects, applying a light pulse to the ensemble of quantum defects to reset the electronic spin states of the quantum defects, and repeating a readout stage a plurality of times within a readout duration. The readout stage includes mapping the information regarding the target signal back from the nuclear spin states to the corresponding electronic spin states and applying a data acquisition readout pulse to optically measure the electronic spin states of the quantum defects.