116 citations · 227 across the 7 of their papers we have counts for
7 papers
Lattice Improvement in Lattice Effective Field Theory
Nico Klein, Dean Lee, Ulf-G. Meißner
Lattice calculations using the framework of effective field theory have been applied to a wide range few-body and many-body systems. One of the challenges of these calculations is…
The Tjon Band in Nuclear Lattice Effective Field Theory
Nico Klein, Serdar Elhatisari, Timo A. Lähde +2
We explore the lattice spacing dependence in Nuclear Lattice Effective Field Theory for few-body systems up to next-to-next-to leading order in chiral effective field theory includ…
Neutron-proton scattering at next-to-next-to-leading order in Nuclear Lattice Effective Field Theory
Jose Manuel Alarcón, Dechuan Du, Nico Klein +6
We present a systematic study of neutron-proton scattering in Nuclear Lattice Effective Field Theory (NLEFT), in terms of the computationally efficient radial Hamiltonian method. O…
Nuclear binding near a quantum phase transition
Serdar Elhatisari, Ning Li, Alexander Rokash +10
How do protons and neutrons bind to form nuclei? This is the central question of ab initio nuclear structure theory. While the answer may seem as simple as the fact that nuclear fo…
How long does it take to obtain a physical density matrix?
Lukas Knips, Christian Schwemmer, Nico Klein +3
The statistical nature of measurements alone easily causes unphysical estimates in quantum state tomography. We show that multinomial or Poissonian noise results in eigenvalue dist…
Regularization Methods for Nuclear Lattice Effective Field Theory
Nico Klein, Dean Lee, Weitao Liu +1
We investigate Nuclear Lattice Effective Field Theory for the two-body system for several lattice spacings at lowest order in the pionless as well as in the pionful theory. We disc…