Quantum hydrodynamics of a single particle

Daniel Gustavo Suárez-Forero; Vincenzo Ardizzone; Saimon Filipe Covre da Silva; Marcus Reindl; Antonio Fieramosca; Laura Polimeno; Milena De Giorgi; Lorenzo Dominici; Loren N. Pfeiffer; Giuseppe Gigli; Dario Ballarini; Fabrice Laussy; Armando Rastelli; Daniele Sanvitto

doi:10.1038/s41377-020-0324-x

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Quantum hydrodynamics of a single particle

Original Articles

- Quantum hydrodynamics of a single particle
- Light: Science & Applications Vol. 9, Issue 3, Pages: 812-818(2020)
- Affiliations：
  
  1.CNR NANOTEC, Institute of Nanotechnology, Campus Ecotekne, Via Monteroni, 73100 Lecce, Italy
  2.Dipartimento di Ingegneria dell'Innovazione, Università del Salento, Campus Ecotekne, via Monteroni, 73100 Lecce, Italy
  3.Institute of Semiconductor and Solid State Physics, Johannes Kepler University, Altenbergerstr. 69, Linz 4040, Austria
  4.Dipartimento di Matematica e Fisica E. De Giorgi, Università del Salento, Campus Ecotekne, via Monteroni, Lecce 73100, Italy
  5.PRISM, Princeton Institute for the Science and Technology of Materials, Princeton University, Princeton, NJ 08540, USA
  6.Faculty of Science and Engineering, University of Wolverhampton, Wulfruna Street, Wolverhampton WV1 1LY, UK
  7.Russian Quantum Center, Novaya 100, 143025 Skolkovo, Moscow Region, Russia
- Author bio：
  
  Vincenzo Ardizzone (v.ardizzone85@gmail.com)
  Daniele Sanvitto (daniele.sanvitto@nanotec.cnr.it)
- Funds：
- DOI：10.1038/s41377-020-0324-x
  CLC：
- Published：2020，
  
  Published Online：13 May 2020，
  
  Received：11 November 2019，
  
  Revised：23 April 2020，
  
  Accepted：28 April 2020
- Accepted：
Scan QR Code
Suárez-Forero, D. G. et al. Quantum hydrodynamics of a single particle. Light: Science & Applications, 9, 812-818 (2020).
DOI：

Suárez-Forero, D. G. et al. Quantum hydrodynamics of a single particle. Light: Science & Applications, 9, 812-818 (2020). DOI： 10.1038/s41377-020-0324-x.

摘要

Abstract

Semiconductor devices are strong competitors in the race for the development of quantum computational systems. In this work

we interface two semiconductor building blocks of different dimensionalities with complementary properties: (1) a quantum dot hosting a single exciton and acting as a nearly ideal single-photon emitter and (2) a quantum well in a 2D microcavity sustaining polaritons

which are known for their strong interactions and unique hydrodynamic properties

including ultrafast real-time monitoring of their propagation and phase mapping. In the present experiment

we can thus observe how the injected single particles propagate and evolve inside the microcavity

giving rise to hydrodynamic features typical of macroscopic systems despite their genuine intrinsic quantum nature. In the presence of a structural defect

we observe the celebrated quantum interference of a single particle that produces fringes reminiscent of wave propagation. While this behavior could be theoretically expected

our imaging of such an interference pattern

together with a measurement of antibunching

constitutes the first demonstration of spatial mapping of the self-interference of a single quantum particle impinging on an obstacle.

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