2008/07/11 by Rafael A. Molina, J. Dukelsky, Jorge Dukelsky +1
Physics and Astronomy · #Atom (system on chip) #Atomic and Subatomic Physics Research #Atomic physics #Cold Atom Physics and Bose-Einstein Condensates #Compressibility #Condensed matter physics #Crystal (programming language) #Crystallization #Hyperfine structure #Lattice (music) #Magnetic field #Magnetic trap #Optical lattice #Physics #Quantum #Quantum mechanics #Quantum, superfluid, helium dynamics #Superfluidity #Trapping #Ultracold atom #cond-mat.mes-hall #cond-mat.str-el
paper · pdf · doi:10.1103/physreva.80.013616
published as Phys. Rev. A 80, 013616 (2009) · 4 pages 6 figures
arxiv created 2008/07/11 · openalex publication_date 2009/07/28 · arxiv updated 2010/11/16 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Cold fermionic atoms with three different hyperfine states confined in optical lattices show pronounced atomic density waves (ADWs). These ADWs are pinned due to the confining potential that traps the atoms in the optical lattice and can be considered a crystal phase of strongly bound trions (CPT). We show that the crystalline phase is incompressible and robust against anisotropic interactions. We also show that it is generic in the presence of the trap due to its incompressibility. Numeric density matrix renormalization group calculations show evidence of a crossover between a trionic superfluid and the CPT state as a function of the strength of the interaction and as a function of the anisotropy of the interaction.