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Neutron matter with chiral EFT interactions: Perturbative and first QMC calculations
I. Tews, T. Krüger, A. Gezerlis +2
Neutron matter presents a unique system in chiral effective field theory (EFT), because all many-body forces among neutrons are predicted to next-to-next-to-next-to-leading order (…
The neutron polaron as a constraint on nuclear density functionals
M. M. Forbes, A. Gezerlis, K. Hebeler +2
We study the energy of an impurity (polaron) that interacts strongly in a sea of fermions when the effective range of the impurity-fermion interaction becomes important, thereby ma…
The chiral condensate in neutron matter
T. Krüger, I. Tews, B. Friman +2
We calculate the chiral condensate in neutron matter at zero temperature based on nuclear forces derived within chiral effective field theory. Two-, three- and four-nucleon interac…
Neutron matter from chiral effective field theory interactions
T. Krüger, I. Tews, K. Hebeler +1
The neutron-matter equation of state constrains the properties of many physical systems over a wide density range and can be studied systematically using chiral effective field the…
Quantum Monte Carlo Calculations with Chiral Effective Field Theory Interactions
A. Gezerlis, I. Tews, E. Epelbaum +4
We present the first quantum Monte Carlo (QMC) calculations with chiral effective field theory (EFT) interactions. To achieve this, we remove all sources of nonlocality, which hamp…
Equation of state and neutron star properties constrained by nuclear physics and observation
K. Hebeler, J. M. Lattimer, C. J. Pethick +1
Microscopic calculations of neutron matter based on nuclear interactions derived from chiral effective field theory, combined with the recent observation of a 1.97 +- 0.04 M_sun ne…