Work

Ion-Based Quantum Sensor for Optical Cavity Photon Numbers

Year: 2019

Type: article

Abstract: We dispersively couple a single trapped ion to an optical cavity to extract information about the cavity photon-number distribution in a nondestructive way. The photon-number-dependent ac Stark shift experienced by the ion is measured via Ramsey spectroscopy. We use these measurements first to obtain the ion-cavity interaction strength. Next, we reconstruct the cavity photon-number distribution for coherent states and for a state with mixed thermal-coherent statistics, finding overlaps above 99% with the calibrated states.

Source: Physical Review Letters

DOI: 10.1103/physrevlett.122.153603

Authors: Moonjoo Lee, Konstantin Friebe, Dario A. Fioretto, Klemens Schüppert, Florian R. Ong, David Plankensteiner, Valentin Torggler, Helmut Ritsch, Rainer Blatt, Tracy E. Northup

Institutions: Universität Innsbruck, Austrian Academy of Sciences, Institute for Quantum Optics and Quantum Information Innsbruck

Language: English

Topic: Quantum Information and Cryptography

Subfield: Artificial Intelligence

Field: Computer Science

Domain: Physical Sciences

Open Access status: green

Funders: European Commission, Austrian Science Fund, Army Research Laboratory, H2020 Marie Skłodowska-Curie Actions

Awards: G1862246951, Looking inside an optical cavity with trapped ions, G3101954135, Atoms, Light, and Molecules, Quantum networks and quantum simulations with ions in an optical cavity, G4120019427, G4124011123, G434337789, G5062013453, Cavity-QED Ion Quantum Network, Cavity-QED Ion Quantum Network, G7358480839

OpenAlex ID: W2899033725

FWCI: 1.366

Cites: 55

Cited by: 16

Related to: 10