Several novel theoretical proposals involving cold atom clouds and Bose-Einstein condensates (BEC) trapped and monitored using shaped and driven dipole laser potentials are reviewed. In the first part of the talk, Iwill present the cold atoms beam-splitter as a basic atom optics component in the thermal[1,2] and condensed regime [3]. Then, I move to a discussion of the specific properties of Bose-Einstein condensation in Laguerre-Gauss optical potentials[4,5]. In the last part, I present our most recent work dealing with species-selective lattice launch for high-precision atom interferometry[6,7]. We propose a new technique to selectively and simultaneously accelerate different atomic species (41K and 87Rb BECs) by driven optical lattices to operate atomic fountains with dual sources launched with the same velocity. Our method would allow for accurate tests of General relativity weak equivalence principle . The choice of Bose-Einstein condensed input states as a case study is motivated by the expected performance of atom interferometers based on these novel source concepts.
References :
[1]N. Gaaloul, A. Suzor-Weiner, L. Pruvost, M. Telmini et E. Charron, Phys. Rev. A 74 023620 (2006).
[2] N. Gaaloul, A. Jaouadi, M. Telmini, L. Pruvost and E. Charron, AIP Conf. Proc. 935, 10 (2007)
[3] N. Gaaloul, A. Jaouadi, L. Pruvost, M. Telmini and E. Charron, Eur. Phys. J. D53, 343-351 (2009)
[4] A. Jaouadi, N. Gaaloul, B. Viaris de Lesegno, M. Telmini, L. Pruvost and E. Charron. Phys. Rev. A 82, 023613 (2010)
[5] A. Jaouadi, M. Telmini and E. Charron, Phys. Rev. A 83, 320616 (2011)
[6] R. Chamakhi, H. Ahlers, M. Telmini, C. Schubert,E. Rasel, N. Gaaloul, New J. Phys, 17 123002 (2015)
[7] R. Chamakhi, H. Ahlers, M. Telmini, C. Schubert,E. Rasel, N. Gaaloul, New J. Phys, 18 118002 (2016)
