The recent discovery of high-temperature superconductivity in La 3 Ni 2 O 7 offers a fresh
platform for exploring unconventional pairing mechanisms. Starting with the basic argument …

In conventional metallic superconductors such as aluminium, the large number of weakly
bounded Cooper pairs become phase-coherent as soon as they start to form. The cuprate …

Understanding the doped Mott insulator is a central challenge in condensed matter physics.
In this work, we first explicitly identify a new sign structure in the tt′-J model on the square …

It is a great discovery in physics of the twentieth century that the elementary particles in
nature are dictated by gauge forces, characterized by a nonintegrable phase factor that an …

Recent realization of well-controlled quantum simulators of the triangular-lattice Fermi-
Hubbard model, including the triangular optical lattices loaded with ultracold Fermions and …

Quantum simulations with ultracold fermions in triangular optical lattices have recently
emerged as a new platform for studying magnetism in frustrated systems. Experimental …

For decades, it has remained an open question whether two dopants in the tJ model bind in
the strongly correlated regime of small spin couplings versus hop**, J≪ t. Here, we …

We examine the dynamical magnetic response in a two-component resonating-valence-
bond (RVB) description of the doped Mott insulator. The half-filled antiferromagnetic phase …

The ground state of the bipartite tJ model must satisfy a specific sign structure, based on
which the single-hole and two-hole ground state A nsa ̈ tze on honeycomb lattice are …

I unveil an emergent localization phenomenon pertaining to the motion of a dopant in a
thermal spin lattice. This is rendered localized by thermal spin fluctuations, whereby it is in …