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Applying the variational principle to (1+1)-dimensional quantum field theories

Jutho Haegeman1, J Ignacio Cirac, Tobias J Osborne

  • 1Ghent University, Department of Physics and Astronomy, Krijgslaan 281-S9, B-9000 Ghent, Belgium.

Physical Review Letters
|January 15, 2011
PubMed

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