5 papers
Programmable dipolar interaction geometry selects stripe-family order in a molecular lattice quantum simulator
Chao Zhang
Microwave-dressed polar molecules offer a route to lattice quantum simulators in which the angular form of long-range dipolar interactions, not only their overall strength, can be…
Superfluid transition of bond bipolarons with long-range Coulomb repulsion in two dimensions
Chao Zhang
Using numerically exact diagrammatic Monte Carlo simulations in the two-electron (single-bipolaron) sector, we explore the impact of long-range Coulomb repulsion on the dilute-limi…
Robustness of bipolaronic superconductivity to electron-density-phonon coupling
Chao Zhang
We study bipolaron formation and bipolaronic superconductivity on a square lattice, where electrons couple to both local Holstein phonons via on-site charge density and nonlocal bo…
A comprehensive study of bond bipolaron superconductivity in triangular lattice
Chao Zhang
We employ the diagrammatic Monte Carlo method with a lattice path-integral formulation for both electron and phonon degrees of freedom to investigate the formation and properties o…
Effects of phonon dispersion on the bond-bipolaron superconductivity
Chao Zhang, Nikolay Prokof'ev, Boris Svistunov
We employ the diagrammatic Monte Carlo method based on lattice path-integral representaion of the particle sector and real-space diagrammatics of the phonon sector to study effects…