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Observation of Nagaoka polarons in a Fermi–Hubbard quantum simulator
Quantum interference can deeply alter the nature of many-body phases of matter. In the
case of the Hubbard model, Nagaoka proved that introducing a single itinerant charge can …
case of the Hubbard model, Nagaoka proved that introducing a single itinerant charge can …
Directly imaging spin polarons in a kinetically frustrated Hubbard system
The emergence of quasiparticles in quantum many-body systems underlies the rich
phenomenology in many strongly interacting materials. In the context of doped Mott …
phenomenology in many strongly interacting materials. In the context of doped Mott …
Observation of spin polarons in a frustrated moiré Hubbard system
The electron's kinetic energy plays a pivotal role in magnetism. While virtual electron
hop** promotes antiferromagnetism in an insulator, real hop** processes usually favour …
hop** promotes antiferromagnetism in an insulator, real hop** processes usually favour …
High-temperature kinetic magnetism in triangular lattices
We study kinetic magnetism for the Fermi-Hubbard model in triangular lattices. We focus on
the regime of strong interactions, U≫ t, and filling factors around one electron per site. For …
the regime of strong interactions, U≫ t, and filling factors around one electron per site. For …
Tunable exciton valley-pseudospin orders in moiré superlattices
R ** and kinetic magnetism
We study the quantum dynamics of interstitials and vacancies in a two-dimensional Wigner
crystal (WC) using a semiclassical instanton method that is asymptotically exact at low …
crystal (WC) using a semiclassical instanton method that is asymptotically exact at low …
Chiral pseudospin liquids in moiré heterostructures
We propose multilayer moiré structures in strong external magnetic fields as a novel platform
for realizing highly tunable, frustrated Hubbard physics with topological order. Identifying the …
for realizing highly tunable, frustrated Hubbard physics with topological order. Identifying the …