51 citations · 129 across the 9 of their papers we have counts for
9 papers
On the Spurious Interior Resonance Modes of Time Domain Integral Equations for Analyzing Acoustic Scattering from Penetrable Objects
Rui Chen, Yifei Shi, Sadeed Bin Sayed +2
The interior resonance problem of time domain integral equations (TDIEs) formulated to analyze acoustic field interactions on penetrable objects is investigated. Two types of TDIEs…
Ice, glass, and solid phases in artificial spin systems with quenched disorder
Yifei Shi, Cristiano Nisoli, Gia-Wei Chern
We present a numerical study on a disordered artificial spin-ice system which interpolates between the long-range ordered square ice and the fully degenerate shakti ice. Starting f…
Robust linear-scaling optimization of compact localized orbitals in density functional theory
Yifei Shi, Jessica Karaguesian, Rustam Z. Khaliullin
Locality of compact one-electron orbitals expanded strictly in terms of local subsets of basis functions can be exploited in density functional theory (DFT) to achieve linear growt…
Low-cost orbital-based linear-scaling \emph{ab initio} molecular dynamics for weakly-interacting systems
Hayden Scheiber, Yifei Shi, Rustam Z. Khaliullin
Within the framework of linear-scaling Kohn-Sham density functional theory, a robust method for maintaining compact localized orbitals close to the ground state is coupled with nuc…
Auxiliary fermion approach to the RIXS spectrum in a doped cuprate
Yifei Shi, Andrew James, Eugene Demler +1
We describe a method for calculating the resonant inelastic X-ray scattering (RIXS) response---including the dynamics of the transient core hole---of many-body systems with non-tri…
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…
Resonant inelastic x-ray scattering as a probe of band structure effects in cuprates
Márton Kanász-Nagy, Yifei Shi, Israel Klich +1
We analyze within quasi-particle theory a recent resonant inelastic x-ray scattering (RIXS) experiment on with the incoming photon energy detuned at sev…
Full counting statistics and the Edgeworth series for matrix product states
Yifei Shi, Israel Klich
We consider full counting statistics of spin in matrix product states. In particular, we study the approach to gaussian distribution for magnetization. We derive the asymptotic cor…
Boson pairing and unusual criticality in a generalized XY model
Yifei Shi, Austen Lamacraft, Paul Fendley
We discuss the unusual critical behavior of a generalized XY model containing both 2π-periodic and π-periodic couplings between sites. The presence of vortices and half-vortices al…