Single-Shot Measurements of Phonon Number States Using the Autler-Townes Effect

Author(s)

Mallweger, Marion ; de Oliveira, Murilo Henrique ; Thomm, Robin ; Parke, Harry ; Kuk, Natalia ; Higgins, Gerard ; Bachelard, Romain ; Villas-Boas, Celso Jorge ; Hennrich, Markus

• Document type: Journal article
• Source: Physical Review Letters; v. 131, n. 22, p. 6-pg., 2023-11-28.

Abstract

We present a single-shot method to measure motional states in the number basis. The technique can be applied to systems with at least three nondegenerate energy levels which can be coupled to a linear quantum harmonic oscillator. The method relies on probing an Autler-Townes splitting that arises when a phonon number changing transition is strongly coupled. We demonstrate the method using a single trapped ion and show that it may be used in a nondemolition fashion to prepare phonon number states. We also show how the Autler-Townes splitting can be used to measure phonon number distributions. (AU)

• FAPESP's process: 19/11999-5 - Collective effects on atomic systems, nuclear spins and cavity quantum electrodynamics
• Grantee: Celso Jorge Villas-Bôas
• Support Opportunities: Regular Research Grants
• FAPESP's process: 20/00725-9 - Photonic quantum dot interaction
• Grantee: Romain Pierre Marcel Bachelard
• Support Opportunities: Regular Research Grants
• FAPESP's process: 19/13143-0 - Cold atoms, photons, and quantum correlations
• Grantee: Celso Jorge Villas-Bôas
• Support Opportunities: Regular Research Grants
• FAPESP's process: 22/00209-6 - Second generation quantum technologies
• Grantee: Celso Jorge Villas-Bôas
• Support Opportunities: Research Projects - Thematic Grants
• FAPESP's process: 18/15554-5 - Transport and localization of light in two and three dimensions
• Grantee: Romain Pierre Marcel Bachelard
• Support Opportunities: Research Grants - Young Investigators Grants - Phase 2