Deep Learning-Assisted Classification of Site-Resolved Quantum Gas Microscope Images

Now in Measurement Science and Technology!

Illustration of the convolutional neural network architecture used in the present work. The images are a sample of the features learned at each layer of the network. These are created using a version of the deepDream algorithm in MATLAB, shown as a grid of artificial images which most strongly activate those features.

In collaboration with our theory colleague at IQOQI (Rick van Bijnen) we present a novel method for the analysis of quantum gas microscope images. Our method uses deep learning to improve the fidelity with which lattice sites can be classified as occupied or unoccupied. This method is able to improve upon the fidelity of threshold-based methods, following training on large data sets of simulated images. We demonstrate the effectiveness of the neural networks especially for the analysis of noncooled lattice images, as it is planned for our future Erbium quantum gas microscope. Here, low photon counts and atom movement limits the fidelity of traditional reconstruction techniques.

“Cécile DeWitt-Morette” prize awarded to Francesca Ferlaino

The “Cécile DeWitt-Morette / School of Physics Houches” prize of the French Academy of Sciences was created in 2019 to honor the memory of Cécile DeWitt-Morette, notable scientist and founder of the École de Physique des Houches in 1951.

Francesca won the first edition for the “remarkable work on ultra-cold atom gases” ranging from the early investigation on Efimov physics to the more recent results on dipolar quantum gases of Erbium and Erbium-Dysprosium. Her work paves the way for a better understanding of quantum physics and for future applications in quantum simulation and quantum engineering.

More information can be found here on the official webpage (in French).

Congratulations to Francesca for the Junior BEC Award

From left to right: Immanuel Bloch, Sandro Stringari, Francesca Ferlaino, Lev Pitaevskii, Thierry Giamarchi, Jürgen Stuhler

Last week Francesca Ferlaino has received the Junior BEC Award 2019 for her “pioneering work on Bose-Einstein condensation of dipolar Erbium atoms and more generally degenerate quantum gases with long-range interactions and for realizing novel quantum phases of matter with such systems”.
The award, honoring outstanding achievements in the field of Bose-Einstein condensation, was presented at the international BEC Conference in Sant Feliu de de Guíxols.

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The Italian ambassador to Austria, Sergio Barbanti, visits the AG Ferlaino

Foto: D.Jordan

On the occasion of the 350th anniversary of the foundation of the University of Innsbruck, the Italian ambassador to Austria, Sergio Barbanti, will visit our group. Professor Ferlaino will guide the ambassador, accompanied by the representative of the Innsbruck’s Italien-Zentrum Dr. Tasser and Ms Romeo, around the IQOQI’s and University’s labs.