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The Origin of Antibunching in Resonance Fluorescence
- Source :
- Biblos-e Archivo. Repositorio Institucional de la UAM, instname, Physical Review Letters
- Publication Year :
- 2020
- Publisher :
- arXiv, 2020.
-
Abstract
- Epitaxial quantum dots have emerged as one of the best single-photon sources, not only for applications in photonic quantum technologies but also for testing fundamental properties of quantum optics. One intriguing observation in this area is the scattering of photons with subnatural linewidth from a two-level system under resonant continuous wave excitation. In particular, an open question is whether these subnatural linewidth photons exhibit simultaneously antibunching as an evidence of single-photon emission. Here, we demonstrate that this simultaneous observation of subnatural linewidth and antibunching is not possible with simple resonant excitation. First, we independently confirm single-photon character and subnatural linewidth by demonstrating antibunching in a Hanbury Brown and Twiss type setup and using high-resolution spectroscopy, respectively. However, when filtering the coherently scattered photons with filter bandwidths on the order of the homogeneous linewidth of the excited state of the two-level system, the antibunching dip vanishes in the correlation measurement. Our experimental work is consistent with recent theoretical findings, that explain antibunching from photon-interferences between the coherent scattering and a weak incoherent signal in a skewed squeezed state.<br />Comment: 8 pages, 4 figures
- Subjects :
- Photon
General Physics and Astronomy
Physics::Optics
FOS: Physical sciences
01 natural sciences
High-Resolution Spectroscopy
symbols.namesake
Laser linewidth
0103 physical sciences
Simultaneous Observation
Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
Rayleigh scattering
010306 general physics
Incoherent Signals
Physics
Quantum optics
Experimental Confirmation
Quantum Physics
Condensed Matter - Mesoscale and Nanoscale Physics
Scattering
Resonance Fluorescences
Física
Resonant Excitation
Resonance fluorescence
Excited state
symbols
Atomic physics
Quantum Physics (quant-ph)
Correlation Measurement
Squeezed coherent state
Subnatural Linewidth
Subjects
Details
- Database :
- OpenAIRE
- Journal :
- Biblos-e Archivo. Repositorio Institucional de la UAM, instname, Physical Review Letters
- Accession number :
- edsair.doi.dedup.....07fad34dd2e4e524ad8a6b5d022a973b
- Full Text :
- https://doi.org/10.48550/arxiv.2005.11800