Cold Atom Quantum Simulator for Dilute Neutron Matter
arXiv:1901.00985 · doi:10.1142/S0218301319300017
Abstract
The internal structure of neutron stars and the physical properties of nuclei depend on the equation of state (EOS) of neutron matter. Dilute neutron matter is a quantum system of spin-1/2 Fermi particles interacting via s-wave scattering. Although a nuclear system and an ultracold atomic system have length scales and energy scales that differ by several orders of magnitude, both systems follow a common universal EOS considering their non-dimensional universal interaction parameters. In this study, we determine the EOS of neutron matter in the dilute region, where the influence of the s-wave scattering length is dominant but that of the effective range is small, by utilizing a quantum simulator of ultracold Li atoms with Feshbach resonance.
29 pages, 8 figures, accepted for International Journal of Modern Physics E
References in corpus (15)
- GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral
- Theory of ultracold Fermi gases
- Computational complexity and fundamental limitations to fermionic quantum Monte Carlo simulations
- Nuclear Force from Lattice QCD
- The Equation of State of a Low-Temperature Fermi Gas with Tunable Interactions
- Thermodynamics of the BCS-BEC crossover
- The Giant Dipole Resonance as a quantitative constraint on the symmetry energy
- Quantum Fluctuations in the Superfluid State of the BCS-BEC Crossover
- Strongly paired fermions: Cold atoms and neutron matter
- Determination of the Superfluid Gap in Atomic Fermi Gases by Quasiparticle Spectroscopy
- Universal Properties of the Ultra-Cold Fermi Gas
- Quantum Monte Carlo Simulations of the BCS-BEC Crossover at Finite Temperature
- Collisional Properties of p-Wave Feshbach Molecules
- Exact Relations for a Strongly-interacting Fermi Gas near a Feshbach Resonance
- Superfluid Fermi atomic gas as a quantum simulator for the study of neutron-star equation of state