Kurtscheid, Christian ORCID: 0000-0002-9171-285X, Dung, David, Busley, Erik ORCID: 0000-0003-2050-5316, Vewinger, Frank ORCID: 0000-0001-7818-2981, Rosch, Achim ORCID: 0000-0002-6586-5721 and Weitz, Martin (2019). Thermally condensing photons into a coherently split state of light. Science, 366 (6467). S. 894 - 914. WASHINGTON: AMER ASSOC ADVANCEMENT SCIENCE. ISSN 1095-9203

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Abstract

The quantum state of light plays a crucial role in a wide range of fields, from quantum information science to precision measurements. Whereas complex quantum states can be created for electrons in solid-state materials through mere cooling, optical manipulation and control builds on nonthermodynamic methods. Using an optical dye microcavity, we show that photon wave packets can be split through thermalization within a potential with two minima subject to tunnel coupling. At room temperature, photons condense into a quantum-coherent bifurcated ground state. Fringe signals upon recombination show the relative coherence between the two wells, demonstrating a working interferometer with the nonunitary thermodynamic beam splitter. Our energetically driven optical-state preparation method provides a route for exploring correlated and entangled optical many-body states.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Kurtscheid, ChristianUNSPECIFIEDorcid.org/0000-0002-9171-285XUNSPECIFIED
Dung, DavidUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Busley, ErikUNSPECIFIEDorcid.org/0000-0003-2050-5316UNSPECIFIED
Vewinger, FrankUNSPECIFIEDorcid.org/0000-0001-7818-2981UNSPECIFIED
Rosch, AchimUNSPECIFIEDorcid.org/0000-0002-6586-5721UNSPECIFIED
Weitz, MartinUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-127514
DOI: 10.1126/science.aay1334
Journal or Publication Title: Science
Volume: 366
Number: 6467
Page Range: S. 894 - 914
Date: 2019
Publisher: AMER ASSOC ADVANCEMENT SCIENCE
Place of Publication: WASHINGTON
ISSN: 1095-9203
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
BOSE-EINSTEIN CONDENSATIONMultiple languages
Multidisciplinary SciencesMultiple languages
Refereed: Yes
URI: http://kups.ub.uni-koeln.de/id/eprint/12751

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