412 citations · 1.9k across the 15 of their papers we have counts for
15 papers
Realising the Symmetry-Protected Haldane Phase in Fermi-Hubbard Ladders
Pimonpan Sompet, Sarah Hirthe, Dominik Bourgund +10
Topology in quantum many-body systems has profoundly changed our understanding of quantum phases of matter. The paradigmatic model that has played an instrumental role in elucidati…
Microscopic evolution of doped Mott insulators from polaronic metal to Fermi liquid
Joannis Koepsell, Dominik Bourgund, Pimonpan Sompet +8
The competition between antiferromagnetism and hole motion in two-dimensional Mott insulators lies at the heart of a doping-dependent transition from an anomalous metal to a conven…
Robust Bilayer Charge-Pumping for Spin- and Density-Resolved Quantum Gas Microscopy
Joannis Koepsell, Sarah Hirthe, Dominik Bourgund +5
Quantum gas microscopy has emerged as a powerful new way to probe quantum many-body systems at the microscopic level. However, layered or efficient spin-resolved readout methods ha…
Time-Resolved Observation of Spin-Charge Deconfinement in Fermionic Hubbard Chains
Jayadev Vijayan, Pimonpan Sompet, Guillaume Salomon +6
Elementary particles such as the electron carry several quantum numbers, for example, charge and spin. However, in an ensemble of strongly interacting particles, the emerging degre…
Imaging magnetic polarons in the doped Fermi-Hubbard model
Joannis Koepsell, Jayadev Vijayan, Pimonpan Sompet +6
Polarons are among the most fundamental quasiparticles emerging in interacting many-body systems, forming already at the level of a single mobile dopant. In the context of the two-…
Direct observation of incommensurate magnetism in Hubbard chains
Guillaume Salomon, Joannis Koepsell, Jayadev Vijayan +5
The interplay between magnetism and doping is at the origin of exotic strongly correlated electronic phases and can lead to novel forms of magnetic ordering. One example is the eme…
Revealing Hidden Antiferromagnetic Correlations in Doped Hubbard Chains via String Correlators
Timon A. Hilker, Guillaume Salomon, Fabian Grusdt +5
Topological phases, like the celebrated Haldane phase in spin-1 chains, defy characterization through local order parameters. Instead, non-local string order parameters can be empl…
Nonlinear scattering of atomic bright solitons in disorder
A Boissé, G Berthet, L Fouché +4
We observe nonlinear scattering of 39 K atomic bright solitons launched in a one-dimensional (1D) speckle disorder. We directly compare it with the scattering of non-interacting pa…
Production of strongly bound 39K bright solitons
S Lepoutre, L Fouché, A Boissé +4
We report on the production of 39 K matter-wave bright solitons, i.e., 1D matter-waves that propagate without dispersion thanks to attractive interactions. The volume of the solito…
Spin and Charge Resolved Quantum Gas Microscopy of Antiferromagnetic Order in Hubbard Chains
Martin Boll, Timon A. Hilker, Guillaume Salomon +5
The repulsive Hubbard Hamiltonian is one of the foundational models describing strongly correlated electrons and is believed to capture essential aspects of high temperature superc…
Microscopic Observation of Pauli Blocking in Degenerate Fermionic Lattice Gases
Ahmed Omran, Martin Boll, Timon Hilker +4
The Pauli exclusion principle is one of the most fundamental manifestations of quantum statistics. Here, we report on its local observation in a spin-polarized degenerate gas of fe…
All optical cooling of K to Bose Einstein condensation
Guillaume Salomon, Lauriane Fouché, Steven Lepoutre +2
We report the all-optical production of Bose Einstein condensates (BEC) of K atoms. We directly load atoms in a large volume optical dipole trap from gray…
Gray molasses cooling of K to a high phase-space density
G. Salomon, L. Fouché, P. Wang +3
We present new techniques in cooling 39K atoms using laser light close to the D1 transition. First, a new compressed-MOT configuration is taking advantage of gray molasses type coo…
Effect of disorder close to the superfluid transition in a two-dimensional Bose gas
Baptiste Allard, Thomas Plisson, Markus Holzmann +4
We experimentally study the effect of disorder on trapped quasi two-dimensional (2D) 87Rb clouds in the vicinity of the Berezinskii-Kosterlitz-Thouless (BKT) phase transition. The…
Coherence properties of a 2D trapped Bose gas around the superfluid transition
T. Plisson, B. Allard, M. Holzmann +4
We measure the momentum distribution of a 2D trapped Bose gas and observe the increase of the range of coherence around the Berezinskii-Kosterlitz-Thouless (BKT) transition. We qua…