Now showing items 1-12 of 27

    • The imaginary part of the high-harmonic cutoff 

      Pisanty, Emilio; Ciappina, Marcelo F.; Lewenstein, Maciej (IOP, 2020-07-22)
      Article
      Open Access
      High-harmonic generation the emission of high-frequency radiation by the ionization and subsequent recombination of an atomic electron driven by a strong laser eld is widely understood using a quasiclassical trajectory ...
    • Symphony on strong field approximation 

      Amini, Kasra; Biegert, Jens; Calegari, Francesca; Chacón, Alexis; Ciappina, Marcelo F.; Dauphin, Alexandre; Efimov, Dmitry K.; Figueira de Morisson Faria, Carla; Giergiel, Krzysztof; Gniewek, Piotr; Landsman, Alexandra S.; Lesiuk, Michał; Mandrysz, Michał; Maxwell, Andrew S.; Moszynski, Robert; Ortmann, Lisa; Pérez-Hernández, Jose Antonio; Picón, Antonio; Pisanty, Emilio; Prauzner-Bechcicki, Jakub; Sacha, Krzysztof; Suárez, Noslen; Zaïr, Amelle; Zakrzewski, Jakub; Lewenstein, Maciej (IOP, 2019-10-14)
      Article
      Open Access
      This paper has been prepared by the Symphony collaboration (University of Warsaw, Uniwersytet Jagielloński, DESY/CNR and ICFO) on the occasion of the 25th anniversary of the ‘simple man’s models’ which underlie most of ...
    • Knotting fractional-order knots with the polarization state of light 

      Pisanty, Emilio; Machado, Gerard J.; Vicuña-Hernández, Verónica; Picón, Antonio; Celi, Alessio; Pérez Torres, Juan; Lewenstein, Maciej (Nature, 2019-06-10)
      Article
      Open Access
      The fundamental polarization singularities of monochromatic light are normally associated with invariance under coordinated rotations: symmetry operations that rotate the spatial dependence of an electromagnetic field by ...
    • Terahertz field control of in-plane orbital order in La0.5Sr1.5MnO4 

      Miller, Timothy A.; Chhajlany, Ravindra W.; Tagliacozzo, Luca; Green, Bertram; Kovalev, Sergey; Prabhakaran, Dharmalingam; Lewenstein, Maciej; Gensch, Michael; Wall, Simon (Nature Publishing Group, 2015-09-18)
      Article
      Open Access
      In-plane anisotropic ground states are ubiquitous in correlated solids such as pnictides, cuprates and manganites. They can arise from doping Mott insulators and compete with phases such as superconductivity; however, their ...
    • Inequivalence of entanglement, steering, and Bell nonlocality for general measurements 

      Quintino, Marco Tulio; Vértesi, Tamas; Cavalcanti, Daniel; Augusiak, Remigiusz; Demianowicz, Maciej; Acín, Antonio; Brunner, Nicolas (APS, 2015-09-08)
      Article
      Open Access
      Einstein-Podolsky-Rosen steering is a form of inseparability in quantum theory commonly acknowledged to be intermediate between entanglement and Bell nonlocality. However, this statement has so far only been proven for a ...
    • Nonlocality in many-body quantum systems detected with two-body correlators 

      Tura, J.; Augusiak, Remigiusz; Sainz, A. B.; Lücke, B.; Klempt, C.; Lewenstein, Maciej; Acin, Antonio (Science Direct, 2015-07-30)
      Article
      Open Access
      Contemporary understanding of correlations in quantum many-body systems and in quantum phase transitions is based to a large extent on the recent intensive studies of entanglement in many-body systems. In contrast, much ...
    • Quench dynamics of dipolar fermions in a one-dimensional harmonic trap 

      Graß, Tobias (APS, 2015-08-08)
      Article
      Open Access
      We study a system of few fermions in a one-dimensional harmonic trap and focus on the case of dipolar majority particles in contact with a single impurity. The impurity is used both for quenching the system and for ...
    • Locality of temperature in spin chains 

      Hernández-Santana, Senaida; Riera, Arnau; Hovhannisyan, Karen V.; Perarnau-Llobet, Martí; Tagliacozzo, Luca (IOP, 2015-08-18)
      Article
      Open Access
      In traditional thermodynamics, temperature is a local quantity: a subsystem of a large thermal system is in a thermal state at the same temperature as the original system. For strongly interacting systems, however, the ...
    • Progress towards a unified approach to entanglement distribution 

      Streltsov, Alexander; Augusiak, Remigiusz; Demianowicz, Maciej; Lewenstein, Maciej (APS, 2015-07-30)
      Article
      Open Access
      Entanglement distribution is key to the success of secure communication schemes based on quantum mechanics, and there is a strong need for an ultimate architecture able to overcome the limitations of recent proposals such ...
    • Energetics and Control of Ultracold Isotope-Exchange Reactions between Heteronuclear Dimers in External Fields 

      Tomza, Michał (APS, 2015-08-07)
      Article
      Open Access
      We show that isotope-exchange reactions between ground-state alkali-metal, alkaline-earth-metal, and lanthanide heteronuclear dimers consisting of two isotopes of the same atom are exothermic with an energy change in the ...
    • Strong-coupling ansatz for the one-dimensional Fermi gas in a harmonic potential 

      Levinsen, Jesper; Massignan, Pietro; Bruun, Georg M.; Parish, Meera M. (Science, 2015-07-24)
      Article
      Open Access
      A major challenge in modern physics is to accurately describe strongly interacting quantum many-body systems. One-dimensional systems provide fundamental insights because they are often amenable to exact methods. However, ...
    • Entanglement and Nonlocality are Inequivalent for Any Number of Parties 

      Augusiak, R.; Demianowicz, M.; Tura, J.; Acín, Antonio (APS, 2015-07-15)
      Article
      Open Access
      Understanding the relation between nonlocality and entanglement is one of the fundamental problems in quantum physics. In the bipartite case, it is known that these two phenomena are inequivalent, as there exist entangled ...