Distribution of squeezed states through an atmospheric channel

Peuntinger C, Heim B, Mueller CR, Gabriel C, Marquardt C, Leuchs G (2014)

Publication Type: Journal article

Publication year: 2014

Journal

Physical Review Letters American Physical Society

Book Volume: 113

Article Number: 060502

Journal Issue: 6

DOI: 10.1103/PhysRevLett.113.060502

Abstract

Continuous variable quantum states of light are used in quantum information protocols and quantum metrology and known to degrade with loss and added noise. We were able to show the distribution of bright polarization squeezed quantum states of light through an urban free-space channel of 1.6 km length. To measure the squeezed states in this extreme environment, we utilize polarization encoding and a postselection protocol that is taking into account classical side information stemming from the distribution of transmission values. The successful distribution of continuous variable squeezed states is accentuated by a quantum state tomography, allowing for determining the purity of the state. © 2014 American Physical Society.

Authors with CRIS profile

Christoph Marquardt Institut für Optik, Information und Photonik Gerhard Leuchs

Involved external institutions

Max-Planck-Institut für die Physik des Lichts (MPL) / Max Planck Institute for the Science of Light DE Germany (DE)

How to cite

APA:

Peuntinger, C., Heim, B., Mueller, C.R., Gabriel, C., Marquardt, C., & Leuchs, G. (2014). Distribution of squeezed states through an atmospheric channel. Physical Review Letters, 113(6). https://doi.org/10.1103/PhysRevLett.113.060502

MLA:

Peuntinger, Christian, et al. "Distribution of squeezed states through an atmospheric channel." Physical Review Letters 113.6 (2014).

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