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Zero-Temperature Phases of the 2D Hubbard-Holstein Model: A Non-Gaussian Exact Diagonalization Study
Yao Wang, Ilya Esterlis, Tao Shi +2
We propose a numerical method which embeds the variational non-Gaussian wavefunction approach within exact diagonalization, allowing for efficient treatment of correlated systems w…
Ab Initio Exact Diagonalization Simulation of the Nagaoka Transition in Quantum Dots
Yao Wang, Juan Pablo Dehollain, Fang Liu +4
Recent progress of quantum simulators provides insight into the fundamental problems of strongly correlated systems. To adequately assess the accuracy of these simulators, the prec…
Efficient variational approach to dynamics of a spatially extended bosonic Kondo model
Yuto Ashida, Tao Shi, Richard Schmidt +3
We develop an efficient variational approach to studying dynamics of a localized quantum spin coupled to a bath of mobile spinful bosons. We use parity symmetry to decouple the imp…
Topological polarons, quasiparticle invariants and their detection in 1D symmetry-protected phases
Fabian Grusdt, Norman Y. Yao, Eugene Demler
In the presence of symmetries, one-dimensional quantum systems can exhibit topological order, which in many cases can be characterized by a quantized value of the many-body geometr…
Non-Abelian symmetries and disorder: a broad non-ergodic regime and anomalous thermalization
I. V. Protopopov, R. K. Panda, T. Parolini +3
Symmetries play a central role in single-particle localization. Recent research focused on many-body localized (MBL) systems, characterized by new kind of integrability, and by the…
Microscopic spinon-chargon theory of magnetic polarons in the t-J model
Fabian Grusdt, Annabelle Bohrdt, Eugene Demler
The interplay of spin and charge degrees of freedom, introduced by doping mobile holes into a Mott insulator with strong anti-ferromagnetic (AFM) correlations, is at the heart of s…