Adiabatic preparation of a fractional quantum Hall fluid by coherently pumping atoms from a Bose-Einstein condensate
Abstract
We propose a protocol to adiabatically prepare a many-particle fractional quantum Hall fluid of bosonic ultracold atoms exploiting a time-dependent coherent coupling of a strongly interacting atomic state with a large dilute Bose-Einstein condensate. Starting from an empty cloud, atoms with well-defined angular momentum are coherently pumped into the fluid by Raman beams with a Laguerre-Gauss profile. Compared to number-conserving schemes which rely on finite-size-induced topological gaps, we identify an adiabatic path in the Fock space which avoids crossing topological phase transitions and thus maintains a sizable adiabatic gap open at all times. The efficiency of our preparation protocol is numerically assessed for typical experimental parameters up to particle numbers that largely exceed the experimental state-of-the-art. The crucial advantage of including an anharmonic confinement is finally highlighted.
Versions
Related
- Fractional Bose-Einstein Condensate Dark Matter Cores: Numerical GPP Solutions and SPARC Rotation Curves
- Bose–Einstein condensate of ultracold sodium–rubidium molecules with tunable dipolar interactions
- Three-dimensional multipole states of the Bose-Einstein condensate of polar molecules in a shallow two-dimensional trapping potential
- Magnetic-Field-Induced Tomonaga-Luttinger Liquid and Bose-Einstein Condensate Phases in an Organic S = 1 Haldane Chain
- Observation of a supersolid phase in a spin-orbit coupled exciton-polariton Bose-Einstein condensate
BibTeX
@misc{fatis2026adiabatic,
title = {{Adiabatic preparation of a fractional quantum Hall fluid by coherently pumping atoms from a Bose-Einstein condensate}},
author = {Alberto Tabarelli de Fatis and Christof Weitenberg and Alexander Schnell and André Eckardt and Iacopo Carusotto},
howpublished = {arXiv},
year = {2026},
month = jun,
doi = {10.48550/arxiv.2606.15951},
eprint = {2606.15951},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2606.15951},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Adiabatic preparation of a fractional quantum Hall fluid by coherently pumping atoms from a Bose-Einstein condensate
AU - Alberto Tabarelli de Fatis
AU - Christof Weitenberg
AU - Alexander Schnell
AU - André Eckardt
AU - Iacopo Carusotto
PY - 2026
DA - 2026/06/14
PB - arXiv
DO - 10.48550/arxiv.2606.15951
UR - https://arxiv.org/abs/2606.15951
AB - We propose a protocol to adiabatically prepare a many-particle fractional quantum Hall fluid of bosonic ultracold atoms exploiting a time-dependent coherent coupling of a strongly interacting atomic state with a large dilute Bose-Einstein condensate. Starting from an empty cloud, atoms with well-defined angular momentum are coherently pumped into the fluid by Raman beams with a Laguerre-Gauss profile. Compared to number-conserving schemes which rely on finite-size-induced topological gaps, we identify an adiabatic path in the Fock space which avoids crossing topological phase transitions and thus maintains a sizable adiabatic gap open at all times. The efficiency of our preparation protocol is numerically assessed for typical experimental parameters up to particle numbers that largely exceed the experimental state-of-the-art. The crucial advantage of including an anharmonic confinement is finally highlighted.
ER -