Zobrazeno 1 - 10
of 42
pro vyhledávání: '"Klein, Nico"'
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 to remove systematic errors arising from the nonzero lattice spacing.
Externí odkaz:
http://arxiv.org/abs/1807.04234
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 including all isospin breaking and electromagnetic effects, the complete two
Externí odkaz:
http://arxiv.org/abs/1803.04231
Neutron-proton scattering at next-to-next-to-leading order in Nuclear Lattice Effective Field Theory
Autor:
Alarcón, Jose Manuel, Du, Dechuan, Klein, Nico, Lähde, Timo A., Lee, Dean, Li, Ning, Lu, Bing-Nan, Luu, Thomas, Meißner, Ulf-G.
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. Our leading-order (LO) interaction consists of smeared, local contact t
Externí odkaz:
http://arxiv.org/abs/1702.05319
Autor:
Elhatisari, Serdar, Li, Ning, Rokash, Alexander, Alarcón, Jose Manuel, Du, Dechuan, Klein, Nico, Lu, Bing-nan, Meißner, Ulf-G., Epelbaum, Evgeny, Krebs, Hermann, Lähde, Timo A., Lee, Dean, Rupak, Gautam
Publikováno v:
Phys. Rev. Lett. 117, 132501 (2016)
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 forces are attractive, the full story is more complex and interesting. I
Externí odkaz:
http://arxiv.org/abs/1602.04539
Autor:
Knips, Lukas, Schwemmer, Christian, Klein, Nico, Reuter, Jonas, Tóth, Géza, Weinfurter, Harald
The statistical nature of measurements alone easily causes unphysical estimates in quantum state tomography. We show that multinomial or Poissonian noise results in eigenvalue distributions converging to the Wigner semicircle distribution for already
Externí odkaz:
http://arxiv.org/abs/1512.06866
Publikováno v:
Phys. Lett. B 747 (2015) 511-516
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 discuss issues of regularizations and predictions for the effective range
Externí odkaz:
http://arxiv.org/abs/1505.07000
Publikováno v:
Phys. Rev. Lett. 117, 210504 (2016)
Certifying entanglement of a multipartite state is generally considered as a demanding task. Since an $N$ qubit state is parametrized by $4^{N}-1$ real numbers, one might naively expect that the measurement effort of generic entanglement detection al
Externí odkaz:
http://arxiv.org/abs/1412.5881
Autor:
Klein, Nico C.1
Publikováno v:
Zeitschrift für das Gesamte Genossenschaftswesen. Sep2016, Vol. 66 Issue 3, p195-200. 6p.
Akademický článek
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Autor:
Alarcón, Jose, Du, Dechuan, Klein, Nico, Lähde, Timo, Lee, Dean, Li, Ning, Lu, Bing-Nan, Luu, Thomas, Meißner, Ulf-G.
Publikováno v:
European Physical Journal A -- Hadrons & Nuclei; May2017, Vol. 53 Issue 5, p1-21, 21p