Journal
COMMUNICATIONS IN MATHEMATICAL PHYSICS
Volume 294, Issue 1, Pages 273-301Publisher
SPRINGER
DOI: 10.1007/s00220-009-0933-y
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Funding
- NSF-MRSEC at the University of Maryland [DMR-0520471]
- Maryland NanoCenter
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Inspired by the works of Rodnianski and Schlein [31] and Wu [34, 35], we derive a new nonlinear Schrodinger equation that describes a second-order correction to the usual tensor product (mean-field) approximation for the Hamiltonian evolution of a many-particle system in Bose-Einstein condensation. We show that our new equation, if it has solutions with appropriate smoothness and decay properties, implies a new Fock space estimate. We also show that for an interaction potential v(x) = is an element of chi(x)vertical bar x vertical bar(-1), where is an element of is sufficiently small and chi is an element of C-0(infinity) even, our program can be easily implemented locally in time. We leave global in time issues, more singular potentials and sophisticated estimates for a subsequent part (Part II) of this paper.
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