Wave properties of neutral atoms naturally emerge as they are cooled down to temperatures close to the absolute zero. In this regime, their dynamics is governed by single-particle quantum effects such as the tunnel effect as well as by many-particle quantum effects such as interactions and entanglement. We investigate, from a theoretical point of view, the dynamics of ultracold atoms, matter-wave solitons, and Bose-Einstein condensates trapped in optical potentials with a special focus on designing protocols for an efficient and robust transport of ultracold atoms to be used in matter wave interferometry and atomtronic devices.
Recent articles:
- “Coherent spin mixing via spin-orbit coupling in Bose gases”, J. Cabedo, J. Claramunt, A. Celi, Y. Zhang, V. Ahufinger, J. Mompart, Phys. Rev. A 100, 063633 (2019)
- “Quantum magnetism with ultracold bosons carrying orbital angular momentum”, G. Pelegrí, J. Mompart, V. Ahufinger, A. J. Daley, Phys. Rev. A 100, 023615 (2019)
- “Second-order topological corner states with ultracold atoms carrying orbital angular momentum in optical lattices”, G. Pelegrí, A. M. Marques, V. Ahufinger, J. Mompart, R. G. Dias, Phys. Rev. B 100, 205109 (2019)
- “Topological edge states and Aharanov-Bohm caging with ultracold atoms carrying orbital angular momentum”, G. Pelegrí, A. M. Marques, R. G. Dias, A. J. Daley, V. Ahufinger, J. Mompart, Phys. Rev. A 99, 023613 (2019)
- “Topological edge states with ultracold atoms carrying orbital angular momentum in a diamond chain”, G. Pelegrí, A. M. Marques, R. G. Dias, A. J. Daley, J. Mompart, V. Ahufinger, Phys. Rev. A 99, 023612 (2019)
- “Quantum sensing using imbalanced counter-propagating Bose-Einstein condensate modes”, G. Pelegrí, J. Mompart, V. Ahufinger, New Journal of Physics 20, 103001 (2018)
- “Damping of Josephson Oscillations in Strongly Correlated One-Dimensional Atomic Gases”, J. Polo, V. Ahufinger, F. W. J. Hekking, A. Minguzzi, Phys. Rev. Lett 121, 090404 (2018)
- “Single-atom edgelike states via quantum interference”, G. Pelegrí, J. Polo, A. Turpin, M. Lewenstein, J. Mompart, V. Ahufinger, Phys. Rev. A 95, 013614 (2017)
- “Geometrically induced complex tunnelings for ultracold atoms carrying orbital angular momentum”, J. Polo, J. Mompart, V. Ahufinger, Phys. Rev. A 93, 033613 (2016)
Review articles:
- “Spatial adiabatic passage: a review of recent progress”, R. Menchon-Enrich, A. Benseny, V. Ahufinger, A. D. Greentree, J. Mompart, Reports on Progress in Physics 79, 074401 (2016)
- “Ultracold atomic gases in optical lattices: mimicking condensed matter physics and beyond”, M. Lewenstein, A. Sanpera, V. Ahufinger, B. Damski, A. Sen(De), U. Sen, Advances in Physics 56, 243 (2007)
Patents:
- “A quantum sensing device, a system comprising the device, and a method for measuring using the device”, V. Ahufinger, J. Mompart, G. Pelegrí, Publication Date:19.09.2019, International Application No.: PCT/EP2019/056107