The GiaSaaS mission to send a Greek satellite into space has just been selected. It will be lead by OHB-Hellas and encompasses a Pan-Greek consortium of companies and universities, including the Libre-Space-Foundation, the National Observatory of Athens, the The Microprocessors Laboratory and Digital Systems Lab of the NTUA, the Greek Center for Security Studies (KEMEA).
Vangelis Tzardis is has been accepted a the PhD in Frederick University in Cyprus to work on the identification and prediction of brain tumors from MR images.
Congratulations from the BEC team!
Our article ‘ELGAR—a European Laboratory for Gravitation and Atom-interferometric Research’ has just appeared in Classical and Quantum Gravity:
ELGAR — a European Laboratory for Gravitation and Atom-interferometric Research
B. Canuel, S. Abend, P. Amaro-Seoane, F. Badaracco, Q. Beaufils, A. Bertoldi, K. Bongs, P. Bouyer, C. Braxmaier, W. Chaibi, N. Christensen, F. Fitzek, G. Flouris, N. Gaaloul, S. Gaffet, C. L. G. Alzar, R. Geiger, S. Guellati-Khelifa, K. Hammerer, J. Harms, J. Hinderer, M. Holynski, J. Junca, S. Katsanevas, C. Klempt, C. Kozanitis, M. Krutzik, A. Landragin, I. L. Roche, B. Leykauf, Y.-H. Lien, S. Loriani, S. Merlet, M. Merzougui, M. Nofrarias, P. Papadakos, F. P. dos Santos, A. Peters, D. Plexousakis, M. Prevedelli, E. M. Rasel, Y. Rogister, S. Rosat, A. Roura, D. O. Sabulsky, V. Schkolnik, D. Schlippert, C. Schubert, L. Sidorenkov, J.-N. Siemß, C. F. Sopuerta, F. Sorrentino, C. Struckmann, G. M. Tino, G. Tsagkatakis, A. Vicere, W. von Klitzing, L. Woerner, and X. Zou
Classical and Quantum Gravity 37 225017 (2020)
08/2020 – today PhD Student on the theory of nanoLace.
Apostolos has joined us in August 2020 to work on the theory of matterwaves and how to use magnetic lenses and RF-fields to produce coherent lenses and mirrors. The final aim is to create nano-scale matter-wave images
In matterwave interferometry, atoms are put into a superposition of two different momentum states. They are then made to travel in two different paths (yes, during part of the interferometry sequence every individual atom is at two distinct places at the same time) before being recombined. Depending on the phase accumulated in the two different paths the atoms end up in two different distinguishable states. The accumulated phase is extremely sensitive to minute entry differences between the two paths travelled, making ultra-sensitive measurements of gravitation, acceleration, or rotation possible. Atoms, however, have the tendency to fall under the influence of earth’s gravitation. This means, that in order to measure at the highest precision, the apparatus has to be very large (some reaching tens or even one hundred of meters in height). The ideal solution would be to contain the atoms in waveguides (much like the optical fibres in optical gyroscopes). Until recently, this has not been possible, because even the smallest roughness in these guides destroys the coherence of the travelling matterwaves.
Our recent contributions
In a recent paper (published in Nature), we have demonstrated for the first time coherent guiding of matterwaves over macroscopic distances. This will make possible, for the first time ever, to perform guided matter-wave spectroscopy over macroscopic distances and in non-trivial geometries. This will greatly enhance the interaction time of the atoms and thus the sensitivity of matterwave interferometers.
The new PhD student will work together with our current Giannis Drougakis on the first guided matterwave interferometry. En route to this he/she will explore the limits on the roughness of waveguides, thus providing invaluable input to the design of any guided matterwave interferometer. The student(s) will work under the supervision of Wolf von Klitzing and Dimitris Papazoglou and be enrolled in the University of Crete
02/2020 – 06/2020 MSci Student on BEC1
Hrudya joined us in February 2020 to work on the BEC1 experiment. Unfortunately, soon after her arrival, we were locked down due to the Covid crisis. Hrudya successfully switched to Theory and wrote a very successful Master Thesis on Analytic Solutions and Experimental Applications for Thick and Thin Magnetic Coils. She then graduated from the International School of Photonics Cochin University of Science and Technology Cochin, India, 2020.
Nature 570 205–209 (2019)
S. Pandey, H. Mas, G. Drougakis, P. Thekkeppatt, V. Bolpasi, G. Vasilakis, K. Poulios, and W. von Klitzing