Long-range interacting quantum systems

N Defenu, T Donner, T Macrì, G Pagano, S Ruffo… - Reviews of Modern …, 2023 - APS
In this review recent investigations are summarized of many-body quantum systems with
long-range interactions, which are currently realized in Rydberg atom arrays, dipolar …

Cavity QED with quantum gases: new paradigms in many-body physics

F Mivehvar, F Piazza, T Donner, H Ritsch - Advances in Physics, 2021 - Taylor & Francis
We review the recent developments and the current status in the field of quantum-gas cavity
QED. Since the first experimental demonstration of atomic self-ordering in a system …

High cooperativity using a confocal-cavity–QED microscope

RM Kroeze, BP Marsh, KY Lin, J Keeling, BL Lev - PRX Quantum, 2023 - APS
Cavity quantum electrodynamics (QED) with cooperativity far greater than unity enables high-
fidelity quantum sensing and information processing. The high-cooperativity regime is often …

Cavity-quantum-electrodynamical toolbox for quantum magnetism

F Mivehvar, H Ritsch, F Piazza - Physical Review Letters, 2019 - APS
The recent experimental observation of spinor self-ordering of ultracold atoms in optical
resonators has set the stage for the exploration of emergent magnetic orders in quantum …

Supersolid properties of a Bose-Einstein condensate in a ring resonator

SC Schuster, P Wolf, S Ostermann, S Slama… - Physical review …, 2020 - APS
We investigate the dynamics of a Bose-Einstein condensate interacting with two
noninterfering and counterpropagating modes of a ring resonator. Superfluid, supersolid …

Tuning photon-mediated interactions in a multimode cavity: From supersolid to insulating droplets hosting phononic excitations

N Masalaeva, H Ritsch, F Mivehvar - Physical Review Letters, 2023 - APS
Ultracold atoms trapped in laser-generated optical lattices serve as a versatile platform for
quantum simulations. However, as these lattices are infinitely stiff, they do not allow to …

An optical lattice with sound

Y Guo, RM Kroeze, BP Marsh, S Gopalakrishnan… - Nature, 2021 - nature.com
Quantized sound waves—phonons—govern the elastic response of crystalline materials,
and also play an integral part in determining their thermodynamic properties and electrical …

Light-induced quantum droplet phases of lattice bosons in multimode cavities

P Karpov, F Piazza - Physical Review Letters, 2022 - APS
Multimode optical cavities can be used to implement interatomic interactions which are
highly tunable in strength and range. For bosonic atoms trapped in an optical lattice we …

Supersolid-based gravimeter in a ring cavity

K Gietka, F Mivehvar, H Ritsch - Physical review letters, 2019 - APS
We propose a novel type of composite light-matter interferometer based on a supersolidlike
phase of a driven Bose-Einstein condensate coupled to a pair of degenerate …

Long-range interactions and symmetry breaking in quantum gases through optical feedback

YC Zhang, V Walther, T Pohl - Physical review letters, 2018 - APS
We consider a quasi-two-dimensional atomic Bose-Einstein condensate interacting with a
near-resonant laser field that is backreflected onto the condensate by a planar mirror. We …