Microwave photons emitted by fractionally charged quasiparticles
| العنوان: | Microwave photons emitted by fractionally charged quasiparticles |
|---|---|
| المؤلفون: | Bernard Plaçais, Jean-Marc Berroir, Antonella Cavanna, Ulf Gennser, Gwendal Fève, Hugo Bartolomei, Manohar Kumar, Inès Safi, R. Bisognin, Yong Jin, E. Bocquillon |
| المساهمون: | Physique Mésoscopique, Laboratoire de physique de l'ENS - ENS Paris (LPENS (UMR_8023)), Fédération de recherche du Département de physique de l'Ecole Normale Supérieure - ENS Paris (FRDPENS), Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS Paris)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS Paris)-Université Paris Diderot - Paris 7 (UPD7)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Fédération de recherche du Département de physique de l'Ecole Normale Supérieure - ENS Paris (FRDPENS), Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS Paris)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS Paris)-Université Paris Diderot - Paris 7 (UPD7)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique des Solides (LPS), Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de photonique et de nanostructures (LPN), Centre National de la Recherche Scientifique (CNRS), École normale supérieure - Paris (ENS Paris)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Université Paris Diderot - Paris 7 (UPD7)-École normale supérieure - Paris (ENS Paris)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Université Paris Diderot - Paris 7 (UPD7), Centre de Nanosciences et de Nanotechnologies (C2N), Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Université Paris Diderot - Paris 7 (UPD7), Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11), Centre de Nanosciences et de Nanotechnologies [Orsay] (C2N), Université Paris-Sud - Paris 11 (UP11)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS) |
| المصدر: | Nature Communications Nature Communications, Nature Publishing Group, 2019, 10 (1), ⟨10.1038/s41467-019-09758-x⟩ Nature Communications, Vol 10, Iss 1, Pp 1-7 (2019) Nature Communications, Nature Publishing Group, 2019, 10 (1), pp.1708. ⟨10.1038/s41467-019-09758-x⟩ |
| بيانات النشر: | HAL CCSD, 2019. |
| سنة النشر: | 2019 |
| مصطلحات موضوعية: | 0301 basic medicine, Photon, Science, General Physics and Astronomy, FOS: Physical sciences, 02 engineering and technology, Low frequency, Article, General Biochemistry, Genetics and Molecular Biology, 03 medical and health sciences, Mesoscale and Nanoscale Physics (cond-mat.mes-hall), Rectangular potential barrier, lcsh:Science, ComputingMilieux_MISCELLANEOUS, [PHYS.COND.CM-MSQHE]Physics [physics]/Condensed Matter [cond-mat]/Mesoscopic Systems and Quantum Hall Effect [cond-mat.mes-hall], Physics, Multidisciplinary, Condensed Matter - Mesoscale and Nanoscale Physics, Shot noise, Charge (physics), General Chemistry, 021001 nanoscience & nanotechnology, [PHYS.PHYS.PHYS-GEN-PH]Physics [physics]/Physics [physics]/General Physics [physics.gen-ph], 030104 developmental biology, Quantum electrodynamics, Fractional quantum Hall effect, Quasiparticle, lcsh:Q, 0210 nano-technology, Microwave |
| الوصف: | Strongly correlated low-dimensional systems can host exotic elementary excitations carrying a fractional charge $q$ and potentially obeying anyonic statistics. In the fractional quantum Hall effect, their fractional charge has been successfully determined owing to low frequency shot noise measurements. However, a universal method for sensing them unambiguously and unraveling their intricate dynamics was still lacking. Here, we demonstrate that this can be achieved by measuring the microwave photons emitted by such excitations when they are transferred through a potential barrier biased with a dc voltage $V_{\text{dc}}$. We observe that only photons at frequencies $f$ below $qV_{\text{dc}}/h$ are emitted. This threshold provides a direct and unambiguous determination of the charge $q$, and a signature of exclusion statistics. Derived initially within the Luttinger model, this feature is also predicted by universal non-equilibrium fluctuation relations which agree fully with our measurements. Our work paves the way for further exploration of anyonic statistics using microwave measurements. Comment: 16 pages, 4 figures |
| اللغة: | English |
| تدمد: | 2041-1723 |
| DOI: | 10.1038/s41467-019-09758-x⟩ |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3c73bacfed3bcd65019c6108cfc4e47e https://hal.archives-ouvertes.fr/hal-02318672 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....3c73bacfed3bcd65019c6108cfc4e47e |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 20411723 |
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| DOI: | 10.1038/s41467-019-09758-x⟩ |