Effective scattering and Efimov physics in the presence of two-body dissipation
arXiv:2109.00119 · doi:10.1103/PhysRevResearch.3.043225
Abstract
Two-body dissipation usually gives rise to a complex interaction. Here, we study the effect of two-body dissipation on few-body physics, including the fundamental two-body effective scattering and the three-body Efimov physics. By employing a two-channel model that incorporates the decay of closed-channel molecules (generating the two-body dissipation), we explicitly relate the real and imaginary part of the inverse scattering length (a_s^{-1}) to closed-channel detuning and decay rate. In particular, we show that the imaginary part of a_s^{-1} is given by the product of the molecule decay rate and the effective range. Such complex scattering length is found to generate an additional imaginary Coulomb potential when three atoms come close to each other, thereby suppressing the formation of trimer bound states and modifying the conventional discrete scaling in Efimov physics.
arXiv comment7 pages, 6 figures
References in corpus (33)
- Feshbach Resonances in Ultracold Gases
- Theory of ultracold Fermi gases
- Universality in Few-body Systems with Large Scattering Length
- Tuning the scattering length with an optically induced Feshbach resonance
- Influence of nearly resonant light on the scattering length in low-temperature atomic gases
- Efimov Physics: a review
- Strong dissipation inhibits losses and induces correlations in cold molecular gases
- Resonantly-paired fermionic superfluids
- Universal few-body physics and cluster formation
- Observation of the Mott Insulator to Superfluid Crossover of a Driven-Dissipative Bose-Hubbard System
- Three-boson problem near a narrow Feshbach resonance
- Theory of Non-Hermitian Fermionic Superfluidity with a Complex-Valued Interaction
- Nanometer-scale spatial modulation of an inter-atomic interaction in a Bose-Einstein condensate
- Self-consistent model of ultracold atomic collisions and Feshbach resonances in tight harmonic traps
- Dissipation induced Tonks-Girardeau gas in an optical lattice
- Controlling a magnetic Feshbach resonance with laser light
- Exact Liouvillian Spectrum of a One-Dimensional Dissipative Hubbard Model
- Quantum dynamics with spatiotemporal control of interactions in a stable Bose-Einstein condensate
- Non-Hermitian Linear Response Theory
- Quantum critical behavior influenced by measurement backaction in ultracold gases
- Dynamics of Ultracold Quantum Gases in the Dissipative Fermi-Hubbard Model
- Dissipative Bose-Hubbard system with intrinsic two-body loss
- Dynamical sign reversal of magnetic correlations in dissipative Hubbard models
- Collective Excitations and Nonequilibrium Phase Transition in Dissipative Fermionic Superfluids
- An effective theory of Feshbach resonances and many-body properties of Fermi gases
- Theory of superconductivity with non-Hermitian and parity-time reversal symmetric cooper pairing symmetry
- Realization of a Resonant Fermi Gas with a Large Effective Range
- Strong correlations in lossy one-dimensional quantum gases: from the quantum Zeno effect to the generalized Gibbs ensemble
- Three Resonant Ultra-Cold Bosons: Off-Resonance Effects
- Alternative Route to Strong Interaction: Narrow Feshbach Resonance
- Optical control of a magnetic Feshbach resonance in ultracold Fermi gases
- Non-Hermitian BCS-BEC evolution with a complex scattering length
- Dissipation-facilitated molecules in a Fermi gas with non-Hermitian spin-orbit coupling
Cited by in corpus (7)
- Complex contact interaction for systems with short-range two-body loss
- Variational approach to the dynamics of dissipative quantum impurity models
- Non-Hermitian Haldane-Hubbard model: Effective description of one- and two-body dissipation
- Efimov physics in the complex plane
- Non-Hermitian -wave superfluid and effects of the inelastic three-body loss in a one-dimensional spin-polarized Fermi gas
- Local Non-Hermitian Hamiltonian Formalism for Dissipative Fermionic Systems and Loss-Induced Population Increase in Fermi Superfluids
- Two-Body Contact Dynamics in a Bose Gas near a Fano-Feshbach Resonance