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Title: Volume dependence of N -body bound states

Journal Article · · Physics Letters B
 [1]; ORCiD logo [2]
  1. Technische Univ. Darmstadt (Germany); GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt (Germany)
  2. North Carolina State Univ., Raleigh, NC (United States); Michigan State Univ., East Lansing, MI (United States)

We derive the finite-volume correction to the binding energy of an N-particle quantum bound state in a cubic periodic volume. Our results are applicable to bound states with arbitrary composition and total angular momentum, and in any number of spatial dimensions. The only assumptions are that the interactions have finite range. The finite-volume correction is a sum of contributions from all possible breakup channels. In the case where the separation is into two bound clusters, our result gives the leading volume dependence up to exponentially small corrections. If the separation is into three or more clusters, there is a power-law factor that is beyond the scope of this work, however our result again determines the leading exponential dependence. We also present two independent methods that use finite-volume data to determine asymptotic normalization coefficients. The coefficients are useful to determine low-energy capture reactions into weakly bound states relevant for nuclear astrophysics. Using the techniques introduced here, one can even extract the infinite-volume energy limit using data from a single-volume calculation. The derived relations are tested using several exactly solvable systems and numerical examples. We anticipate immediate applications to lattice calculations of hadronic, nuclear, and cold atomic systems.

Research Organization:
North Carolina State University, Raleigh, NC (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
FG02-03ER41260
OSTI ID:
1437814
Alternate ID(s):
OSTI ID: 1499280
Journal Information:
Physics Letters B, Vol. 779, Issue C; ISSN 0370-2693
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 37 works
Citation information provided by
Web of Science

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Cited By (6)

Three-body spectrum in a finite volume: the role of cubic symmetry text January 2018
Three-particle bound states in a finite volume: unequal masses and higher partial waves text January 2017
Three-body spectrum in a finite volume: the role of cubic symmetry text January 2018
Signatures of few-body resonances in finite volume text January 2018
Variational approach to $N$-body interactions in finite volume text January 2018
Simulations of Subatomic Many-Body Physics on a Quantum Frequency Processor text January 2018

Figures / Tables (6)