433 citations · 1.3k across the 13 of their papers we have counts for
13 papers
Revealing Hidden Correlations in a Fermi-Hubbard system via Interaction Ramps
Botond Oreg, Carter Turnbaugh, Jens Hertkorn +2
We observe an enhanced visibility of charge-density-wave correlations in a cold-atom realization of the attractive Hubbard model following a rapid boost of the interaction strength…
Two-dimensional shelving spectroscopy of ultraviolet ground state transitions in dysprosium
Kevin S. H. Ng, Paul Uerlings, Fiona Hellstern +5
The open inner-shell electronic structure of lanthanides with large magnetic moments gives rise to a rich spectrum of transitions available for laser cooling, trapping, and coheren…
Strongly dipolar molecular Bose-Einstein condensates: From few- to many-body physics
Andreas Schindewolf, Jens Hertkorn, Ian Stevenson +8
Recent advances in molecular cooling have enabled the realization of strongly dipolar Bose--Einstein condensates (BECs) of molecules, and BECs of many different molecular species m…
Competition of fermion pairing, magnetism, and charge order in the spin-doped attractive Hubbard gas
Thomas Hartke, Botond Oreg, Chunhan Feng +7
The tension between fermion pairing and magnetism affects numerous strongly correlated electron systems, from high-temperature cuprates to twisted bilayer graphene. Exotic forms of…
Decoupled sound and amplitude modes in trapped dipolar supersolids
Jens Hertkorn, Philipp Stürmer, Koushik Mukherjee +7
We theoretically investigate elementary excitations of dipolar quantum gases across the superfluid to supersolid phase transition in a toroidal trap. We show how decoupled first so…
Pattern Formation in Quantum Ferrofluids: from Supersolids to Superglasses
J. Hertkorn, J. -N. Schmidt, M. Guo +7
Pattern formation is a ubiquitous phenomenon observed in nonlinear and out-of-equilibrium systems. In equilibrium, quantum ferrofluids formed from ultracold atoms were recently sho…
Supersolidity in Two-Dimensional Trapped Dipolar Droplet Arrays
J. Hertkorn, J. -N. Schmidt, M. Guo +8
We theoretically investigate the ground states and the spectrum of elementary excitations across the superfluid to droplet crystallization transition of an oblate dipolar Bose-Eins…
Roton Excitations in an Oblate Dipolar Quantum Gas
Jan-Niklas Schmidt, Jens Hertkorn, Mingyang Guo +7
We observe signatures of radial and angular roton excitations around a droplet crystallization transition in dipolar Bose-Einstein condensates. In situ measurements are used to cha…
Density Fluctuations across the Superfluid-Supersolid Phase Transition in a Dipolar Quantum Gas
J. Hertkorn, J. -N. Schmidt, F. Böttcher +8
Phase transitions share the universal feature of enhanced fluctuations near the transition point. Here we show that density fluctuations reveal how a Bose-Einstein condensate of di…
New states of matter with fine-tuned interactions: quantum droplets and dipolar supersolids
Fabian Böttcher, Jan-Niklas Schmidt, Jens Hertkorn +5
Quantum fluctuations can stabilize Bose-Einstein condensates (BEC) against the mean-field collapse. Stabilization of the condensate has been observed in quantum degenerate Bose-Bos…
The Fate of the Higgs Mode in a Trapped Dipolar Supersolid
Jens Hertkorn, Fabian Böttcher, Mingyang Guo +4
We theoretically investigate the spectrum of elementary excitations of a trapped dipolar quantum gas across the BEC-supersolid phase transition. Our calculations reveal the existen…
The low-energy Goldstone mode in a trapped dipolar supersolid
Mingyang Guo, Fabian Böttcher, Jens Hertkorn +5
A supersolid is a counter-intuitive state of matter that combines the frictionless flow of a superfluid with the crystal-like periodic density modulation of a solid. Since the firs…
Transient supersolid properties in an array of dipolar quantum droplets
Fabian Böttcher, Jan-Niklas Schmidt, Matthias Wenzel +4
We study theoretically and experimentally the emergence of supersolid properties in a dipolar Bose-Einstein condensate. The theory reveals a ground state phase diagram with three d…