Resonance-to-bound transition of ${}^5$He in neutron matter and its analogy with heteronuclear Feshbach molecule

Abstract

We theoretically investigate the fate of a neutron-alpha $p$-wave resonance in dilute neutron matter, which may be encountered in neutron stars and supernova explosions. While ${}^5$He is known as a resonant state that decays to a neutron and an alpha particle in vacuum, this unstable state turns into a stable bound state in the neutron Fermi sea because the decay process is forbidden by the Pauli-blocking effect of neutrons. Such a resonance-to-bound transition assisted by the Pauli-blocking effect can be realized in cold atomic experiments for a quantum mixture near the heteronuclear Feshbach resonance.

7 pages, 4 figures

References in corpus (15)

• Many-Body Physics with Ultracold Gases
• Theory of ultracold Fermi gases
• Resonantly-paired fermionic superfluids
• Quantum Monte Carlo calculations of neutron-alpha scattering
• Ultracold Fermionic Feshbach Molecules of ${}^{23}$Na${}^{40}$K
• p-wave Feshbach molecules
• Appearance of Light Clusters in Post-bounce Evolution of Core-Collapse Supernovae
• Fermion Superfluids of Non-Zero Orbital Angular Momentum near Resonance
• Polaron Problems in Ultracold Atoms: Role of a Fermi Sea across Different Spatial Dimensions and Quantum Fluctuations of a Bose Medium
• The p-wave polaron
• Efficient conversion of closed-channel dominated Feshbach molecules of ${}^{23}$Na${}^{40}$K to their absolute ground state
• Quasiparticle properties of a single alpha particle in cold neutron matter
• Cooper quartet correlations in infinite symmetric nuclear matter
• Binding two and three $\alpha$ particles in cold neutron matter
• Highly polarized one-dimensional Fermi gases near a narrow $p-$wave resonance

Cited by in corpus (3)

• Intersections of ultracold atomic polarons and nuclear clusters: How is a chart of nuclides modified in dilute neutron matter?
• Polaronic Proton and Diproton Clustering in Neutron-Rich Matter
• Polaronic neutron in dilute alpha matter: A $p$-wave Bose polaron