Direct sampling of electric-field vacuum fluctuations

Riek, Claudius; Seletskiy, Denis V.; Moskalenko, Andrey S.; Schmidt, Jan; Krauspe, Philipp; Eckart, Sebastian; Eggert, Stefan; Burkard, Guido; Leitenstorfer, Alfred

Direct sampling of electric-field vacuum fluctuations

Dateien

Leitensdorfer_0-301750.pdfGröße: 979.07 KBDownloads: 3651

Datum

2015

Angaben zur Forschungsförderung

European Union (EU): 290876

Projekt

Ultrafast Quantum Physics in Amplitude and Phase - UltraPhase, ERC Advanced Grant

Open Access-Veröffentlichung

Open Access Green

Sammlungen

Physik
Zukunftskolleg

Publikationstyp

Zeitschriftenartikel

Publikationsstatus

Published

Erschienen in

Science. 2015, 350(6259), pp. 420-423. ISSN 0036-8075. eISSN 1095-9203. Available under: doi: 10.1126/science.aac9788

Zusammenfassung

The ground state of quantum systems is characterized by zero-point motion. Those vacuum fluctuations are generally deemed an elusive phenomenon that manifests itself only indirectly. Here, we report direct detection of the vacuum fluctuations of electromagnetic radiation in free space. The ground-state electric field variance is found to be inversely proportional to the four-dimensional space-time volume sampled electro-optically with tightly focused few-femtosecond laser pulses. Sub-cycle temporal readout and nonlinear coupling far from resonance provide signals from purely virtual photons without amplification. Our findings enable an extreme time-domain approach to quantum physics with nondestructive access to the quantum state of light. Operating at multi-terahertz frequencies, such techniques might also allow time-resolved studies of intrinsic fluctuations of elementary excitations in condensed matter.

Fachgebiet (DDC)

530 Physik

Zitieren

ISO 690

RIEK, Claudius, Denis V. SELETSKIY, Andrey S. MOSKALENKO, Jan SCHMIDT, Philipp KRAUSPE, Sebastian ECKART, Stefan EGGERT, Guido BURKARD, Alfred LEITENSTORFER, 2015. Direct sampling of electric-field vacuum fluctuations. In: Science. 2015, 350(6259), pp. 420-423. ISSN 0036-8075. eISSN 1095-9203. Available under: doi: 10.1126/science.aac9788

BibTex

@article{Riek2015-10-23Direc-31877,
  year={2015},
  doi={10.1126/science.aac9788},
  title={Direct sampling of electric-field vacuum fluctuations},
  number={6259},
  volume={350},
  issn={0036-8075},
  journal={Science},
  pages={420--423},
  author={Riek, Claudius and Seletskiy, Denis V. and Moskalenko, Andrey S. and Schmidt, Jan and Krauspe, Philipp and Eckart, Sebastian and Eggert, Stefan and Burkard, Guido and Leitenstorfer, Alfred}
}

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Universitätsbibliographie

Ja