Volume dependence of N -body bound states
- Technische Univ. Darmstadt (Germany); GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt (Germany)
- 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
Web of Science
Three-body spectrum in a finite volume: the role of cubic symmetry
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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 |
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