First Order Superconductor to Insulator Transition: Evidence for a Supersolid Phase

Abstract

The superconductor to insulator transition in the presence of long-range Coulomb interactions is studied using Monte Carlo techniques. At integer filling the transition is second order. At half filling we find evidence of a first order transition to a state with non-zero $S_{\pi ,\pi }$. No intervening supersolid phase is observed. Off half-filling two separate transitions are found. The transition from the superconducting to a supersolid phase is second order followed by another second order transition between the supersolid and an insulating phase.

4 pages including 3 figures in eps format. Uses Revtex3.0 and epsf.sty

References in corpus (8)

• The superconductor-insulator transition in 2D dirty boson systems
• Supersolids in the Bose-Hubbard Hamiltonian
• Interstitials, Vacancies, and Supersolid Order in Vortex Crystals
• Simultaneous Diagonal and Off Diagonal Order in the Bose--Hubbard Hamiltonian
• Quantum Smectic and Supersolid Order in Helium Films and Vortex Arrays
• On the Coexistence of Diagonal and off-Diagonal Long-Range Order, a Monte Carlo Study
• Mean Field Theory for Underdamped Josephson Junction Arrays with an Offset Voltage
• Hydrodynamics of Spatially Ordered Superfluids

Cited by in corpus (7)

• Supersolid hardcore bosons on the triangular lattice
• Phase separation in supersolids
• Supersolids versus phase separation in two-dimensional lattice bosons
• Phase Diagram of Interacting Bosons on the Honeycomb Lattice
• The Generic, Incommensurate Transition in the two-dimensional Boson Hubbard Model
• Structural and insulator-metal quantum phase transitions on a lattice
• Supersolid phase in fully frustrated Josephson junction arrays