Bose–Einstein condensation versus localization of bosonic quasiparticles in disordered weakly-coupled dimer antiferromagnets

2005/12/01 by Tommaso Roscilde, Stephan Haas · 9 citations
Physics and Astronomy · #Bose–Einstein condensate #Cold Atom Physics and Bose-Einstein Condensates #Condensed matter physics #Dimer #Lattice (music) #Mott insulator #Nuclear magnetic resonance #Physics #Physics of Superconductivity and Magnetism #Quantum, superfluid, helium dynamics #Quasiparticle #Superconductivity #Superfluidity #cond-mat.dis-nn #cond-mat.str-el

paper · pdf · doi:10.1088/0953-4075/39/10/s15

published in Journal of Physics B Atomic Molecular and Optical Physics 39(10), S153-S162 (IOP Publishing) · 12 pages, 4 figures. Contribution to the BEC Cortona Workshop 2005

arxiv created 2005/12/01 · openalex publication_date 2006/05/02 · arxiv updated 2010/03/23 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/06

Abstract

We investigate the field-induced insulator-to-superfluid transition of bosonic quasiparticles in S = 1/2 weakly-coupled dimer antiferromagnets. In the presence of realistic disorder due to site dilution of the magnetic lattice, we show that the system displays an extended Bose-glass phase characterized by the localization of the hard-core quasiparticles.

Citations

• Bose-Einstein Condensation of Dilute Magnons inTlCuCl3
• Magnetic properties and spin waves of bilayer magnets in a uniform field
• Quantum phase transition from a superfluid to a Mott insulator in a gas of ultracold atoms
• Classical percolation transition in the diluted two-dimensionalS=12Heisenberg antiferromagnet
• Field- and pressure-induced magnetic quantum phase transitions inTlCuCl3

Cited by

• Field-induced quantum-disordered phases inS=12weakly coupled dimer systems with site dilution