Publications (7)
Variational Polaron Method for Bose-Bose Mixtures
David Benjamin, Eugene Demler
We study degenerate mixtures of "heavy" bosons and "light" superfluid bosons using a variational polaron transformation. We consider the Mott insulator-superfluid transition of the…
Friedel Oscillations as a Probe of Fermionic Quasiparticles
Emanuele G. Dalla Torre, David Benjamin, Yang He +2
When immersed in a see of cold electrons, local impurities give rise to density modulations known as Friedel oscillations. In spite of the generality of this phenomenon, the exact…
Exploring Quasiparticles in High-Tc Cuprates Through Photoemission, Tunneling, and X-ray Scattering Experiments
Emanuele G. Dalla Torre, Yang He, David Benjamin +1
One of the key challenges in the field of high-temperature superconductivity is understanding the nature of fermionic quasiparticles. Experiments consistently demonstrate the exist…
Probing Competing and Intertwined Orders with Resonant Inelastic x-ray Scattering in the Hole-Doped Cuprates
David Benjamin, Israel Klich, Eugene Demler
We develop a formalism to study indirect resonant inelastic x-ray scattering (RIXS) in systems with itinerant electrons, accounting for the attraction between valence electrons and…
Microscopic theory of resonant soft x-ray scattering in systems with charge order
David Benjamin, Dmitry Abanin, Peter Abbamonte +1
We present a microscopic theory of resonant soft x-ray scattering (RSXS) that accounts for the delocalized character of valence electrons. Unlike past approaches defined in terms o…
Superconducting pairing in resonant inelastic X-ray scattering
Yifei Shi, David Benjamin, Eugene Demler +1
We develop a method to study the effect of the superconducting transition on resonant inelastic X-ray scattering (RIXS) signal in superconductors with an order parameter with an ar…
Quasiparticle Theory of Resonant Inelastic X-ray Scattering in high-T cuprates
David Benjamin, Israel Klich, Eugene Demler
We develop a formalism for calculating resonant inelastic x-ray scattering (RIXS) spectra in systems of itinerant electrons with arbitrary band structures, accounting for the effec…