Applying twisted boundary conditions for few-body nuclear systems

Christopher Körber and Thomas Luu
Phys. Rev. C 93, 054002 – Published 19 May 2016

Abstract

We describe and implement twisted boundary conditions for the deuteron and triton systems within finite volumes using the nuclear lattice EFT formalism. We investigate the finite-volume dependence of these systems with different twist angles. We demonstrate how various finite-volume information can be used to improve calculations of binding energies in such a framework. Our results suggests that with appropriate twisting of boundaries, infinite-volume binding energies can be reliably extracted from calculations using modest volume sizes with cubic length L814 fm. Of particular importance is our derivation and numerical verification of three-body analogs of “i-periodic” twist angles that eliminate the leading-order finite-volume effects to the three-body binding energy.

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  • Received 9 December 2015
  • Revised 6 March 2016

DOI:https://doi.org/10.1103/PhysRevC.93.054002

©2016 American Physical Society

Physics Subject Headings (PhySH)

Nuclear Physics

Authors & Affiliations

Christopher Körber and Thomas Luu

  • Institute for Advanced Simulations 4, Institut für Kernphysik 3, Forschungszentrum Jülich, D-52425 Jülich, Germany

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Issue

Vol. 93, Iss. 5 — May 2016

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