Environment-limited transfer of angular momentum in Bose liquids
arXiv:2501.16066 · doi:10.1063/5.0253451
Abstract
Impurity motion in a many-body environment has been a central issue in the field of low-temperature physics for decades. In bosonic quantum fluids, the onset of a drag force experienced by point-like objects is due to collective environment excitations, driven by the exchange of linear momentum between the impurity and the many-body bath. In this work we consider a rotating impurity, with the aim of exploring how angular momentum is exchanged with the surrounding bosonic environment. In order to elucidate this issues, we employ a quasiparticle approach based on the angulon theory, which allows us to effectively deal with the non-trivial algebra of quantized angular momentum in presence of a many-body environment. We uncover how impurity dressing by environmental excitations can establish an exchange channel, whose effectiveness crucially depends on the initial state of the impurity. Remarkably, we find that there is a critical value of initial angular momentum, above which this channel effectively freezes.
15 pages, 4 figures, accepted for publication in The Journal of Chemical Physics
References in corpus (30)
- Cavity-controlled chemistry in molecular ensembles
- Levitodynamics: Levitation and control of microscopic objects in vacuum
- Quantum control of molecular rotation
- Motion of a heavy impurity through a Bose-Einstein condensate
- Time dependent impurity in ultracold fermions: orthogonality catastrophe and beyond
- Quantum dynamics of ultracold Bose polarons
- Rotation of quantum impurities in the presence of a many-body environment
- A superfluid hydrodynamic model for the enhanced moments of inertia of molecules in liquid 4He
- Orthogonality catastrophe as a consequence of qubit embedding in an ultra-cold Fermi gas
- A mesoscopic Rydberg impurity in an atomic quantum gas
- Density Functional Theory of doped superfluid liquid helium and nanodroplets
- Quantum rotations of nanoparticles
- Casimir-like force arising from quantum fluctuations in a slow-moving dilute Bose-Einstein condensate
- Measuring the Superfluid Fraction of an Ultracold Atomic Gas
- Quasiparticle approach to molecules interacting with quantum solvents
- Laser-induced rotation of iodine molecules in He-nanodroplets: revivals and breaking-free
- Deformation of a quantum many-particle system by a rotating impurity
- Quantum Coherent Control of a Single Molecular-Polariton Rotation
- Quantum many-body dynamics of the Einstein-de Haas effect
- Theory of superfluidity and drag force in the one-dimensional Bose gas
- Local-in-time error in variational quantum dynamics
- The Loschmidt Echo as a robust decoherence quantifier for many-body systems
- Variational approach to the ground state of an impurity in Bose-Einstein condensate
- Fröhlich Polarons. Lecture course including detailed theoretical derivations
- Variational approaches to quantum impurities: from the Fröhlich polaron to the angulon
- Force on a moving point impurity due to quantum fluctuations in a Bose-Einstein condensate
- Molecular impurities interacting with a many-particle environment: from helium droplets to ultracold gases
- Superfluidity meets the solid-state: frictionless mass-transport through a (5,5) carbon-nanotube
- A simple model for high rotational excitations of molecules in a superfluid
- Creation of excitations from a uniform impurity motion in the condensate