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7 p, 1.1 MB |
Artificial gauge field switching using orbital angular momentum modes in optical waveguides
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Jörg, Christina (Technische Universität Kaiserslautern) ;
Queraltó Isach, Gerard (Universitat Autònoma de Barcelona. Departament de Física) ;
Kremer, Mark (Universität Rostock) ;
Pelegrí, Gerard (Universitat Autònoma de Barcelona. Departament de Física) ;
Schulz, Julian (Technische Universität Kaiserslautern) ;
Szameit, Alexander (Universität Rostock) ;
von Freymann, Georg (Fraunhofer Institute for Industrial Mathematics ITWM) ;
Mompart Penina, Jordi (Universitat Autònoma de Barcelona. Departament de Física) ;
Ahufinger, Verònica (Universitat Autònoma de Barcelona. Departament de Física)
The discovery of artificial gauge fields controlling the dynamics of uncharged particles that otherwise elude the influence of standard electromagnetic fields has revolutionised the field of quantum simulation. [...]
2020 - 10.1038/s41377-020-00385-6
Light, Science & Applications, Vol. 9 (August 2020) , Art. 150
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56 p, 4.4 MB |
Roadmap on STIRAP applications
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Bergmann, Klaas (Technische Universität Kaiserslautern. Fachbereich Physik and Landesforschungszentrum OPTIMAS (Germany)) ;
Nägerl, Hanns-Christoph (Universität Innsbruck. Institut für Experimentalphysik und Zentrum für Quantenphysik (Austria)) ;
Panda, Cristian (Northwestern University. Center for Fundamental Physics (USA)) ;
Gabrielse, Gerald (Northwestern University. Center for Fundamental Physics (USA)) ;
Miloglyadov, Eduard (ETH Zürich. Laboratorium für Physikalische Chemie (Switzerland)) ;
Quack, Martin (ETH Zürich. Laboratorium für Physikalische Chemie (Switzerland)) ;
Seyfang, Georg (ETH Zürich. Laboratorium für Physikalische Chemie (Switzerland)) ;
Wichmann, Gunther (ETH Zürich. Laboratorium für Physikalische Chemie (Switzerland)) ;
Ospelkaus, Silke (Leibniz Universität Hannover. Institut für Quantenoptik (Germany)) ;
Kuhn, Axel (University of Oxford. Clarendon Laboratory (UK)) ;
Longhi, Stefano (Politecnico di Milano. Dipartimento di Fisica (Italy)) ;
Szameit, Alexander (University of Rostock. Institute for Physics (Germany)) ;
Pirro, Philipp (Technische Universität Kaiserslautern. Fachbereich Physik and Landesforschungszentrum OPTIMAS (Germany)) ;
Hillebrands, Burkard (Technische Universität Kaiserslautern. Fachbereich Physik and Landesforschungszentrum OPTIMAS (Germany)) ;
Zhu, Xue-Feng (Huazhong University of Science and Technology. School of Physics and Wuhan National Laboratory for Optoelectronics (People's Republic of China)) ;
Zhu, Jie (Hong Kong Polytechnic University. Department of Mechanical Engineering (People's Republic of China)) ;
Drewsen, Michael (Aarhus University. Department of Physics and Astronomy (Denmark)) ;
Hensinger, Winfried K. (University of Sussex. Sussex Centre for Quantum Technologies (UK)) ;
Weidt, Sebastian (University of Sussex. Sussex Centre for Quantum Technologies (UK)) ;
Halfmann, Thomas (Technical University of Darmstadt. Institute of Applied Physics (Germany)) ;
Wang, Hai-Lin (University of Oregon. Department of Physics (USA)) ;
Paraoanu, Gheorghe Sorin (Aalto University. Department of Applied Physics. QTF Centre of Excellence (Finland)) ;
Vitanov, Nikolay V. (St Kliment Ohridski University of Sofia. Faculty of Physics (Bulgaria)) ;
Mompart Penina, Jordi (Universitat Autònoma de Barcelona. Departament de Física) ;
Busch, Thomas (Okinawa Institute of Science and Technology Graduate University. Quantum Systems Unit (Japan)) ;
Barnum, Timothy J. (Massachusetts Institute of Technology. Department of Chemistry (USA)) ;
Grimes, David D. (Harvard-MIT Center for Ultracold Atoms (USA)) ;
Field, Robert W. (Massachusetts Institute of Technology. Department of Chemistry (USA)) ;
Raizen, Mark G. (University of Texas at Austin. Department of Physics. Center for Nonlinear Dynamics (USA)) ;
Narevicius, Edvardas (Weizmann Institute of Science (Israel). Department of Chemical Physics) ;
Auzinsh, Marcis (University of Latvia. Department of Physics (Latvia)) ;
Budker, Dmitry (University of California at Berkeley. Department of Physics (USA)) ;
Pálffy, Adriana (Max Planck Institute for Nuclear Physics (Germany)) ;
Keitel, Christoph H. (Max Planck Institute for Nuclear Physics (Germany))
STIRAP (stimulated Raman adiabatic passage) is a powerful laser-based method, usually involving two photons, for efficient and selective transfer of populations between quantum states. A particularly interesting feature is the fact that the coupling between the initial and the final quantum states is via an intermediate state, even though the lifetime of the latter can be much shorter than the interaction time with the laser radiation. [...]
2019 - 10.1088/1361-6455/ab3995
Journal of Physics B: Atomic, Molecular and Optical Physics, Vol. 52, Issue 20 (October 2019) , p. 202001
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13 p, 1.7 MB |
Blue-detuned optical ring trap for Bose-Einstein condensates based on conical refraction
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Turpin Avilés, Alejandro (Universitat Autònoma de Barcelona. Departament de Física) ;
Polo Gomez, Juan (Universitat Autònoma de Barcelona. Departament de Física) ;
Loiko, Yu V. (Aston Institute of Photonic Technologies) ;
Küber, Johannes (Technische Universität Darmstadt. Institut für Angewandte Physik) ;
Schmaltz, F. (Technische Universität Darmstadt. Institut für Angewandte Physik) ;
Kalkandjiev, Todor Kirilov (Universitat Autònoma de Barcelona. Departament de Física) ;
Ahufinger, Verònica (Universitat Autònoma de Barcelona. Departament de Física) ;
Birkl, Gerhard (Technische Universität Darmstadt. Institut für Angewandte Physik) ;
Mompart Penina, Jordi (Universitat Autònoma de Barcelona. Departament de Física)
We present a novel approach for the optical manipulation of neutral atoms in annular light structures produced by the phenomenon of conical refraction occurring in biaxial optical crystals. For a beam focused to a plane behind the crystal, the focal plane exhibits two concentric bright rings enclosing a ring of null intensity called the Poggendorff ring. [...]
2015 - 10.1364/OE.23.001638
Optics express, Vol. 23, issue 2 (Jan. 2015) , p. 1638-1650
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11 p, 2.2 MB |
Transport of ultracold atoms between concentric traps via spatial adiabatic passage
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Polo Gomez, Juan (Universitat Autònoma de Barcelona. Departament de Física) ;
Benseny Cases, Albert (Okinawa Institute of Science and Technology. Quantum Systems Unit) ;
Busch, Thomas (Okinawa Institute of Science and Technology. Quantum Systems Unit) ;
Ahufinger, Verònica (Universitat Autònoma de Barcelona. Departament de Física) ;
Mompart Penina, Jordi (Universitat Autònoma de Barcelona. Departament de Física)
Spatial adiabatic passage processes for ultracold atoms trapped in tunnel-coupled cylindrically symmetric concentric potentials are investigated. Specifically, we discuss the matter-wave analog of the rapid adiabatic passage (RAP) technique for a high fidelity and robust loading of a single atom into a harmonic ring potential from a harmonic trap, and for its transport between two concentric rings. [...]
2016 - 10.1088/1367-2630/18/1/015010
New journal of physics, Vol. 18 (January 2016) , art. 15010
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4 p, 361.0 KB |
Conical refraction as a tool for polarization metrology
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Peinado Capdevila, Alba (Universitat Autònoma de Barcelona. Departament de Física) ;
Turpin Avilés, Alejandro (Universitat Autònoma de Barcelona. Departament de Física) ;
Lizana Tutusaus, Ángel (Universitat Autònoma de Barcelona. Departament de Física) ;
Fernandez Moreno, Estefania (Universitat Autònoma de Barcelona. Departament de Física) ;
Mompart Penina, Jordi (Universitat Autònoma de Barcelona. Departament de Física) ;
Campos Coloma, Juan (Universitat Autònoma de Barcelona. Departament de Física)
A method for polarization metrology based on the conical refraction (CR) phenomenon, occurring in biaxial crystals, is reported. CR transforms an input Gaussian beam into a light ring whose intensity distribution is linked to the incoming polarization. [...]
2013 - 10.1364/OL.38.004100
Optics letters, Vol. 38, No. 20 (15 October 2013) , p. 4100-4103
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11 p, 367.4 KB |
Lasing without population inversion : towards X-ray continuous wave laser emission
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Mompart Penina, Jordi (Universitat Autònoma de Barcelona. Departament de Física) ;
Ahufinger, Verònica (Universitat Autònoma de Barcelona. Departament de Física) ;
Silva, F. (Universitat de València. Departament d'Òptica i Optometria i Ciències de la Visió) ;
Corbalán, R. (Ramón) (Universitat Autònoma de Barcelona. Departament de Física)
This paper is devoted to lasing without population inversion in three and multi-level atomic configurations in interaction with a driving laser. First we discuss the interest and the current state-of-the-art of this phenomenon. [...] Aquest article de revisió se centra en el fenomen de l'emissió làser sense inversió de població en configuracions atòmiques de tres o més nivells en interacció amb un làser de preparació. En primer lloc, es descriu breument l'interès i l'estat actual de la recerca al voltant d'aquest fenomen. [...]
2000
Contributions to science, Vol. 1, Núm. 4 (2000) , p. 423-433
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