First-Order Quantum Correction to the Ground-State Energy Density of Two-Dimensional Hard-Sphere Bose Atoms
Date
2010
Authors
Kim, Sang-Hoon
Das, Mukunda P
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Publisher
World Scientific Publishing Company
Abstract
Divergence exponents of the first-order quantum correction of a two-dimensional hard-sphere Bose atoms are obtained by an effective field theory method. The first-order correction to the ground-state energy density with respect to the zeroth-order is given by E1/E0∼ |D-2|-α|lnγ| -α′ where D is the spatial dimension, and γ is the gas parameter (γ = naD). As D →2, α = α′ = 1. We show that the first-order quantum correction of the energy density is not perturbative in low dimensions of D < 2.2 regardless of any gas parameter which is much less than unity.
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Keywords
Keywords: Boson systems; Interacting boson model; Quantum field theory
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Source
International Journal of Modern Physics B
Type
Journal article
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2037-12-31
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