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Recently Added 

  1. Disinformation: A Measured Response 

    Heynen, Jascha (2025)
    CSS Analyses in Security Policy
    Other Publication
  2. Phase coherence in out-of-equilibrium supersolid states of ultracold dipolar atoms 

    Ilzhöfer, Philipp; Sohmen, Maximilian; Durastante, Gianmaria; et al. (2021)
    Nature Physics
    A supersolid is a counterintuitive phase of matter that combines the global phase coherence of a superfluid with a crystal-like self-modulation in space. Recently, such states have been experimentally realized using dipolar quantum gases. Here we investigate the response of a dipolar supersolid to an interaction quench that shatters the global phase coherence. We identify a parameter regime in which this out-of-equilibrium state rephases, ...
    Journal Article
  3. Excitation Spectrum of a Trapped Dipolar Supersolid and Its Experimental Evidence 

    Natale, Gabriele; van Bijnen, R.M.W.; Patscheider, Alexander; et al. (2019)
    Physical Review Letters
    We study the spectrum of elementary excitations of a dipolar Bose gas in a three-dimensional anisotropic trap across the superfluid-supersolid phase transition. Theoretically, we show that, when entering the supersolid phase, two distinct excitation branches appear, respectively associated with dominantly crystal and superfluid excitations. These results confirm infinite-system predictions, showing that finite-size effects play only a ...
    Journal Article
  4. Realization of a Strongly Interacting Fermi Gas of Dipolar Atoms 

    Baier, Simon; Petter, Daniel; Becher, Jan H.; et al. (2018)
    Physical Review Letters
    We realize a two-component dipolar Fermi gas with tunable interactions, using erbium atoms. Employing a lattice-protection technique, we selectively prepare deeply degenerate mixtures of the two lowest spin states and perform high-resolution Feshbach spectroscopy in an optical dipole trap. We identify a comparatively broad Feshbach resonance and map the interspin scattering length in its vicinity. The Fermi mixture shows a remarkable ...
    Journal Article
  5. Bragg scattering of an ultracold dipolar gas across the phase transition from Bose-Einstein condensate to supersolid in the free-particle regime 

    Petter, Daniel; Patscheider, Alexander; Natale, Gabriele; et al. (2021)
    Physical Review A
    We present an experimental and theoretical study of the response of a dipolar supersolid to a Bragg excitation at high-energy defined by the impulse approximation regime. We experimentally observe a continuous reduction of the response when tuning the contact interaction from an ordinary Bose-Einstein condensate to a supersolid state and ultimately to an incoherent array of droplets. Already in the supersolid regime, the observed reduction ...
    Journal Article

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