Distillation of squeezing using an engineered pulsed parametric down-conversion source

T. Dirmeier, J. Tiedau, I. Khan, V. Ansari, C.R. Müller, C. Silberhorn, C. Marquardt, G. Leuchs, Optics Express 28 (2020).

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Journal Article | Published | English
Author
Dirmeier, Thomas; Tiedau, Johannes; Khan, Imran; Ansari, Vahid; Müller, Christian R.; Silberhorn, ChristineLibreCat; Marquardt, Christoph; Leuchs, Gerd
Abstract
<jats:p>Hybrid quantum information processing combines the advantages of discrete and continues variable protocols by realizing protocols consisting of photon counting and homodyne measurements. However, the mode structure of pulsed sources and the properties of the detection schemes often require the use of optical filters in order to combine both detection methods in a common experiment. This limits the efficiency and the overall achievable squeezing of the experiment. In our work, we use photon subtraction to implement the distillation of pulsed squeezed states originating from a genuinely spatially and temporally single-mode parametric down-conversion source in non-linear waveguides. Due to the distillation, we witness an improvement of 0.17 dB from an initial squeezing value of −1.648 ± 0.002 dB, while achieving a purity of 0.58, and confirm the non-Gaussianity of the distilled state via the higher-order cumulants. With this, we demonstrate the source’s suitability for scalable hybrid quantum network applications with pulsed quantum light.</jats:p>
Publishing Year
Journal Title
Optics Express
Volume
28
Issue
21
Article Number
30784
ISSN
LibreCat-ID

Cite this

Dirmeier T, Tiedau J, Khan I, et al. Distillation of squeezing using an engineered pulsed parametric down-conversion source. Optics Express. 2020;28(21). doi:10.1364/oe.402178
Dirmeier, T., Tiedau, J., Khan, I., Ansari, V., Müller, C. R., Silberhorn, C., Marquardt, C., & Leuchs, G. (2020). Distillation of squeezing using an engineered pulsed parametric down-conversion source. Optics Express, 28(21), Article 30784. https://doi.org/10.1364/oe.402178
@article{Dirmeier_Tiedau_Khan_Ansari_Müller_Silberhorn_Marquardt_Leuchs_2020, title={Distillation of squeezing using an engineered pulsed parametric down-conversion source}, volume={28}, DOI={10.1364/oe.402178}, number={2130784}, journal={Optics Express}, publisher={Optica Publishing Group}, author={Dirmeier, Thomas and Tiedau, Johannes and Khan, Imran and Ansari, Vahid and Müller, Christian R. and Silberhorn, Christine and Marquardt, Christoph and Leuchs, Gerd}, year={2020} }
Dirmeier, Thomas, Johannes Tiedau, Imran Khan, Vahid Ansari, Christian R. Müller, Christine Silberhorn, Christoph Marquardt, and Gerd Leuchs. “Distillation of Squeezing Using an Engineered Pulsed Parametric Down-Conversion Source.” Optics Express 28, no. 21 (2020). https://doi.org/10.1364/oe.402178.
T. Dirmeier et al., “Distillation of squeezing using an engineered pulsed parametric down-conversion source,” Optics Express, vol. 28, no. 21, Art. no. 30784, 2020, doi: 10.1364/oe.402178.
Dirmeier, Thomas, et al. “Distillation of Squeezing Using an Engineered Pulsed Parametric Down-Conversion Source.” Optics Express, vol. 28, no. 21, 30784, Optica Publishing Group, 2020, doi:10.1364/oe.402178.

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