553 citations · 4k across the 36 of their papers we have counts for
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Anderson orthogonality scaling in the Rabi-driven heavy Fermi polaron
Michael Rautenberg, Tobias Krom, Eugen Dizer +6
The Anderson orthogonality catastrophe (AOC) is a paradigmatic many-body phenomenon in which a local perturbation induces a macroscopic response of a Fermi sea. We probe signatures…
The heavy Fermi polaron I: the Lithium-Cesium experiment
Michael Rautenberg, Tobias Krom, Eleonora Lippi +2
We present details of an experimental platform for studying Fermi polarons in a quantum-gas mixture. The system consists of about a thousand bosonic Cs impurities immersed…
Competing triangular and stripe supersolid orders in a dipolar quantum gas
Karthik Chandrashekara, Christian Gölzhäuser, Lily Platt +6
Supersolids are exotic quantum states in which long-range phase coherence coexists, and may interplay, with emergent spatial orders. A particularly rich phase diagram featuring sev…
Anomalous non-thermal fixed point in a quasi-two-dimensional dipolar Bose gas
Niklas Rasch, Lauriane Chomaz, Thomas Gasenzer
The emergence of distinctly sub-diffusive scaling in the vicinity of an anomalous non-thermal fixed point is discussed in a quasi-two-dimensional dipolar Bose gas in the superfluid…
Quantum-stabilized states in magnetic dipolar quantum gases
Lauriane Chomaz
A decade ago, a universal stabilization mechanism driven by quantum fluctuations was discovered in ultracold Bose gases of highly magnetic atoms. This mechanism prevents these syst…
Ab initio Complex Langevin computation of the roton gap for a dipolar Bose condensate
Philipp Heinen, Wyatt Kirkby, Lauriane Chomaz +1
We compute from first principles the dispersion relation of a dipolar Bose gas of erbium atoms close to the roton instability by employing the Complex Langevin (CL) algorith…
Kibble-Zurek scaling of the superfluid-supersolid transition in an elongated dipolar gas
Wyatt Kirkby, Hayder Salman, Thomas Gasenzer +1
We simulate interaction quenches crossing from a superfluid to a supersolid state in a dipolar quantum gas of atoms, trapped in an elongated tube with periodi…
An experimental platform for studying the heteronuclear Efimov effect with an ultracold mixture of Li and Cs atoms
Eleonora Lippi, Manuel Gerken, Stephan Häfner +10
We present the experimental apparatus enabling the observation of the heteronuclear Efimov effect in an optically trapped ultracold mixture of Li-Cs with high-resolutio…
Effect of trap imperfections on the density of a quasi-two-dimensional uniform dipolar quantum Bose gas
Thibault Bourgeois, Lauriane Chomaz
We theoretically investigate the impact of weak static perturbations of a flat potential on the density of a quasi-two-dimensional dipolar Bose gas. {We consider the perturbative e…
Compressibility and speeds of sound across the superfluid to supersolid phase transition of an elongated dipolar gas
P. B. Blakie, L. Chomaz, D. Baillie +1
We investigate the excitation spectrum and compressibility of a dipolar Bose-Einstein condensate in an infinite tube potential in the parameter regime where the transition between…
Anomalous loss behavior in a single-component Fermi gas close to a -Wave Feshbach resonance
K. Welz, M. Gerken, B. Zhu +4
We theoretically investigate three-body losses in a single-component Fermi gas near a -wave Feshbach resonance in the interacting, non-unitary regime. We extend the cascade mode…
Dipolar physics: A review of experiments with magnetic quantum gases
Lauriane Chomaz, Igor Ferrier-Barbut, Francesca Ferlaino +3
Since the achievement of quantum degeneracy in gases of chromium atoms in 2004, the experimental investigation of ultracold gases made of highly magnetic atoms has blossomed. The f…
Accurate determination of the scattering length of erbium atoms
A. Patscheider, L. Chomaz, G. Natale +7
An accurate knowledge of the scattering length is fundamental in ultracold quantum gas experiments and essential for the characterisation of the system as well as for a meaningful…
Birth, life, and death of a dipolar supersolid
Maximilian Sohmen, Claudia Politi, Lauritz Klaus +4
In the short time since the first observation of supersolid states of ultracold dipolar atoms, substantial progress has been made in understanding the zero-temperature phase diagra…
High-energy Bragg scattering measurements of a dipolar supersolid
D. Petter, A. Patscheider, G. Natale +9
We present an experimental and theoretical study of the high-energy excitation spectra of a dipolar supersolid. Using Bragg spectroscopy, we study the scattering response of the sy…
Probing the supersolid order via high-energy scattering: analytical relations among response, density modulation, and superfluid fraction
Lauriane Chomaz
High-energy scattering spectroscopy is a widely-established technique for probing the characteristic properties of complex physical systems. Motivated by the recent observation of…
Supersolidity in an elongated dipolar condensate
P. B. Blakie, D. Baillie, L. Chomaz +1
We present a theory for the emergence of a supersolid state in a cigar-shaped dipolar quantum Bose gas. Our approach is based on a reduced three-dimensional (3D) theory, where the…
Phase coherence in out-of-equilibrium supersolid states of ultracold dipolar atoms
Philipp Ilzhöfer, Maximilian Sohmen, Gianmaria Durastante +7
A supersolid is a fascinating phase of matter, combining the global phase coherence of a superfluid with hallmarks of solids, e.g. a spontaneous breaking of the translational symme…
Excitation spectrum of a trapped dipolar supersolid and its experimental evidence
G. Natale, R. M. W. van Bijnen, A. Patscheider +4
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 s…
Controlling Dipolar Exchange Interactions in a Dense 3D Array of Large Spin Fermions
A. Patscheider, B. Zhu, L. Chomaz +5
Dipolar interactions are ubiquitous in nature and rule the behavior of a broad range of systems spanning from energy transfer in biological systems to quantum magnetism. Here, we s…
Long-lived and transient supersolid behaviors in dipolar quantum gases
L. Chomaz, D. Petter, P. Ilzhöfer +9
By combining theory and experiments, we demonstrate that dipolar quantum gases of both Er and Dy support a state with supersolid properties, where a spontaneous den…
Probing the roton excitation spectrum of a stable dipolar Bose gas
D. Petter, G. Natale, R. M. W. van Bijnen +4
We measure the excitation spectrum of a stable dipolar Bose--Einstein condensate over a wide momentum-range via Bragg spectroscopy. We precisely control the relative strength, $ε_{…
Ground state of an ultracold Fermi gas of tilted dipoles in elongated traps
Vladimir Veljic, Aristeu R. P. Lima, Lauriane Chomaz +5
Many-body dipolar effects in Fermi gases are quite subtle as they energetically compete with the large kinetic energy at and below the Fermi surface (FS). Recently it was experimen…
Realization of a Strongly Interacting Fermi Gas of Dipolar Atoms
S. Baier, D. Petter, J. H. Becher +5
We realize a two-component dipolar Fermi gas with tunable interactions, using erbium atoms. Employing a lattice-protection technique, we selectively prepare deeply degenerate mixtu…