Engineering of spontaneous emission in free space via conditional measurements

Bojer M, Götzendörfer L, Bachelard R, von Zanthier J (2022)

Publication Type: Journal article

Publication year: 2022

Journal

Physical Review Research American Physical Society

Book Volume: 4

Article Number: 043022

Journal Issue: 4

DOI: 10.1103/PhysRevResearch.4.043022

Abstract

We study the collective spontaneous emission of three identical two-level atoms initially prepared in the excited states by measuring Glauber's third-order photon correlation function. Assuming two atoms at subwavelength distance from each other such that they are subject to the dipole-dipole interaction while the third one is located several wavelengths away, we observe super- and subradiant decay alike, depending on the direction of observation. Unlike the case where no remote atom is introduced or no conditional measurements are performed, the spontaneous emission behavior of the conditioned three-atom system is strongly modified, i.e., differing from the single-atom and the canonical two-atom configuration. The conditional measurements associated with the three-photon correlation function in combination with the dipole-dipole interaction between the adjacent atoms lead to quantum interference among the different decay channels allowing one to engineer the spontaneous emission in space and time.

Authors with CRIS profile

Manuel Bojer Lehrstuhl für Experimentalphysik (Optik) Lukas Götzendörfer Lehrstuhl für Experimentalphysik (Optik) Joachim von Zanthier Quantum Optics & Quantum Information

Additional Organisation(s)

Sonderforschungsbereich/Transregio 306/1: Quantenkooperativität von Licht und Materie - QuCoLiMa

Related research project(s)

Cooperative light emission and spatio-temporal photon correlations from trapped ion arrays (A01) TRR 306: Quantenkooperativität von Licht und Materie - QuCoLiMa Jan. 1, 2021 - Dec. 31, 2024

Involved external institutions

University of Côte d'Azur / Université Côte d'Azur FR France (FR)

How to cite

APA:

Bojer, M., Götzendörfer, L., Bachelard, R., & von Zanthier, J. (2022). Engineering of spontaneous emission in free space via conditional measurements. Physical Review Research, 4(4). https://dx.doi.org/10.1103/PhysRevResearch.4.043022

MLA:

Bojer, Manuel, et al. "Engineering of spontaneous emission in free space via conditional measurements." Physical Review Research 4.4 (2022).

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