Quantum optics theory: Enviaments recents

Ara es mostren els items 1-12 de 30

    • Neutron Ionization of Helium near the Neutron-Alpha Particle Collision Resonance 

      Pindzola, M. S.; Colgan, J.; Ciappina, M. F. (IOP, 2020-09-10)
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      Accés obert
      Neutron-impact single and double ionization cross sections of the He atom are calculated near the neutron-alpha particle collision resonance. Calculations using the time-dependent close-coupling method for total and ...

    • A systematic construction of Gaussian basis sets for the description of laser field ionization and high-harmonic generation 

      Woźniak, Aleksander; Lesiuk, Michal; Przybytek, Michal; Efimov, Dmitry K.; Prauzner-Bechcicki, Jakub S.; Mandrysz, Michal; Ciappina, Marcelo; Pisanty, Emilio; Zakrzewski, Jakub; Lewenstein, Maciej; Moszyński, Robert (AIP, 2021-03-02)
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      Accés obert
      A precise understanding of mechanisms governing the dynamics of electrons in atoms and molecules subjected to intense laser fields has a key importance for the description of attosecond processes such as the high-harmonic ...

    • Generation of optical Schrödinger cat states in intense laser-matter interactions 

      Lewenstein, Maciej; Ciappina, M. F.; Pisanty, E.; Rivera-Dean, J.; Stammer, P.; Lamprou, Th.; Tzallas, P. (Springer Nature, 2021-08-21)
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      Accés obert
      The physics of intense laser–matter interactions1,2 is described by treating the light pulses classically, anticipating no need to access optical measurements beyond the classical limit. However, the quantum nature of the ...

    • The imaginary part of the high-harmonic cutoff 

      Pisanty, Emilio; Ciappina, Marcelo F.; Lewenstein, Maciej (IOP, 2020-07-22)
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      Accés obert
      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)
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      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)
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      Accés obert
      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)
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      Accés obert
      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 dal Maschio, Antonio; Brunner, Nicolas (APS, 2015-09-08)
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      Accés obert
      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; Acín dal Maschio, Antonio (Science Direct, 2015-07-30)
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      Accés obert
      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)
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      Accés obert
      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)
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      Accés obert
      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)
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      Accés obert
      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 ...