RSS icon
Twitter icon
Facebook icon
Vimeo icon
YouTube icon

Wigner crystallization in two dimensions: Evolution from long-to short-ranged forces

TitleWigner crystallization in two dimensions: Evolution from long-to short-ranged forces
Publication TypeJournal Article
Year of Publication2013
AuthorsB. M. Fregoso, and C. A. R. Sá de Melo
JournalPhys. Rev. B
KeywordsNo Fellows, visitor collaboration

We study fermions in two dimensions interacting via a long-ranged 1/r potential for small particle separations and a short-ranged 1/r(3) potential for larger separations in comparison to a length scale xi. We compute the energy of the Wigner crystal and of the homogeneous Fermi liquid phases using a variational approach, and determined the phase diagram as a function of density and xi at zero temperature. We discuss the collective modes in the Fermi liquid phase, finite temperature effects on the phase diagram, and possible experimental realizations of this model. DOI: 10.1103/PhysRevB.87.125109


Subscribe to A Quantum Bit 

Quantum physics began with revolutionary discoveries in the early twentieth century and continues to be central in today’s physics research. Learn about quantum physics, bit by bit. From definitions to the latest research, this is your portal. Subscribe to receive regular emails from the quantum world. Previous Issues...

Sign Up Now

Sign up to receive A Quantum Bit in your email!

 Have an idea for A Quantum Bit? Submit your suggestions to