I present a report on some of the recent activities in the Quantum Optic Theory group at ICFO. I will choose on demand and discuss few of the current projects of the group: from proximity effects in bilayer brick-square lattice, through detection of Zak phase in quantum random walk and detection of Chern numbers in Floquet topological bands, to detection of non-locality in 1D systems via measurements of energy, and quantum Brownian motion revisited.
1. Tobias Grass, Ravindra W. Chhajlany, Leticia Tarruell, Vittorio Pellegrini, and Maciej Lewenstein, Proximity effects in cold atom artificial graphene, arXiv:1608.02868.
2. F. Cardano, A. D'Errico, A. Dauphin, M. Maffei, B. Piccirillo, C. de Lisio, G. De Filippis, V. Cataudella, E. Santamato, L. Marrucci, M. Lewenstein, and P. Massignan, Detection of Zak phases and topological invariants in a chiral photonic quantum walk, arXiv:1610.06322
3. A. Dauphin, D-T. Tran, M. Lewenstein, and N. Goldman, Loading cold atoms in Floquet topological band and the Chern-number detection, in preparation.
4. Jordi Tura, Gemma De las Cuevas, Remigiusz Augusiak, Maciej Lewenstein, Antonio Acín, and J. Ignacio Cirac, Energy as a detector of nonlocality of many-body spin systems, arXiv:1607.06090.
5. Aniello Lampo, Soon Hoe Lim, Jan Wehr, Pietro Massignan, and Maciej Lewenstein, A Lindblad Model of Quantum Brownian Motion, Phys. Rev. A 94, 042123 (2016), arXiv:1604.0603.