[Seminar] Flexible Quantum Control and Simulation in a Quantum Gas Microscope


Wednesday, March 3, 2021 - 17:00 to 18:00


on Zoom


Title: Flexible Quantum Control and Simulation in a Quantum Gas Microscope

Speaker: Dr. Carrie Ann Weidner
Department of Physics and Astronomy, Aarhus University, Denmark

The first demonstrations of quantum gas microscopes (QGMs) [1,2] in 2009-10 opened up a new avenue for research in quantum simulation in few- and many-body systems. The Rb-87 quantum gas microscope at Aarhus University allows for manipulation of the internal states of the individual atoms [3] and near-arbitrary control of the potential the atoms experience. The atoms may be imaged using traditional fluorescence microscopy or via spatially-selective, minimally destructive Faraday imaging [4-5]. As a result, our experiment provides a novel and flexible platform for a variety of studies in quantum control and simulation. So far, all work with QGMs has been limited to the study of dynamics in one and two dimensions, but our world exists in a three-dimensional space. Recently, we have demonstrated three-dimensional tomography of the atom distribution in our microscope by taking several fluorescence images of the same trapped atoms while varying the focal plane of the imaging system [6]. This work represents a stepping stone towards the extension of QGM-based quantum simulation into three dimensions.
In this talk, I will describe the basic working principles of our experiment. Then I will dive into the tomography work and its implications for future explorations. Finally, I will describe the possibilities of opening our experiment up for use with the general public and research community, work that builds on our previous demonstrations of BEC optimization [7-8].

[1] W. Bakr et al, Nature 462, 74, (2009).
[2] J.F. Sherson et al, Nature 467, 68, (2010).
[3] C. Weitenberg et al, Nature 471, 319, (2011).
[4] M.G. Bason et al, J. Phys. B. 51, 173501, (2018).
[5] O. Elíasson et al, J. Phys. B. 52, 075003, (2019).
[6] O. Elíasson et al, arXiv:1912.03079v2, (2019).
[7] R. Heck et al. Proc. Nat. Acad. Sci. 115, 1091, (2018).
[8] J.S. Laustsen et al. arXiv:2101.11398, (2021).

Meeting URL:     https://oist.zoom.us/j/96283095012?pwd=YnNVUzdvbjkvYTN1dmkxaDNMc2FFQT09&from=addon

Meeting ID:     962 8309 5012
Passcode:    011043

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