Blog
About

  • Record: found
  • Abstract: not found
  • Article: not found

The density-matrix renormalization group

Reviews of Modern Physics

American Physical Society (APS)

Read this article at

ScienceOpenPublisher
Bookmark
      There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

      Related collections

      Most cited references 428

      • Record: found
      • Abstract: not found
      • Article: not found

      Dynamical mean-field theory of strongly correlated fermion systems and the limit of infinite dimensions

        Bookmark
        • Record: found
        • Abstract: found
        • Article: not found

        Quantum phase transition from a superfluid to a Mott insulator in a gas of ultracold atoms.

        For a system at a temperature of absolute zero, all thermal fluctuations are frozen out, while quantum fluctuations prevail. These microscopic quantum fluctuations can induce a macroscopic phase transition in the ground state of a many-body system when the relative strength of two competing energy terms is varied across a critical value. Here we observe such a quantum phase transition in a Bose-Einstein condensate with repulsive interactions, held in a three-dimensional optical lattice potential. As the potential depth of the lattice is increased, a transition is observed from a superfluid to a Mott insulator phase. In the superfluid phase, each atom is spread out over the entire lattice, with long-range phase coherence. But in the insulating phase, exact numbers of atoms are localized at individual lattice sites, with no phase coherence across the lattice; this phase is characterized by a gap in the excitation spectrum. We can induce reversible changes between the two ground states of the system.
          Bookmark
          • Record: found
          • Abstract: not found
          • Article: not found

          Density matrix formulation for quantum renormalization groups

            Bookmark

            Author and article information

            Journal
            RMPHAT
            Reviews of Modern Physics
            Rev. Mod. Phys.
            American Physical Society (APS)
            0034-6861
            1539-0756
            April 2005
            April 26 2005
            : 77
            : 1
            : 259-315
            10.1103/RevModPhys.77.259
            © 2005

            http://link.aps.org/licenses/aps-default-license

            Product

            Comments

            Comment on this article