The deconfined quantum critical point (DQCP) represents a paradigm shift in quantum
matter studies, presenting a “beyond Landau” scenario for order-order transitions. Its …

Pursuing fractionalized particles that do not bear properties of conventional measurable
objects, exemplified by bare particles in the vacuum such as electrons and elementary …

The spin-1/2 Heisenberg model on the pyrochlore lattice is an iconic frustrated three-
dimensional spin system with a rich phase diagram. Besides hosting several ordered …

We have performed density-matrix renormalization group studies of a square lattice tJ model
with small hole doping, δ≪ 1, on long four and six-leg cylinders. We include frustration in the …

The variational wave functions based on neural networks have recently started to be
recognized as a powerful ansatz to represent quantum many-body states accurately. In …

Motivated by the recent discovery of superconductivity in infinite-layer (Sr, Nd) NiO 2 films
with Sr content x≃ 0.2 [D. Li, Nature (London) 572, 624 (2019) NATUAS 0028-0836 …

The nature of the zero-temperature phase diagram of the spin-1/2 J 1-J 2 Heisenberg model
on a square lattice has been debated in the past three decades, and it remains one of the …

Analyzing quantum many-body problems and elucidating the entangled structure of
quantum states is a significant challenge common to a wide range of fields. Recently, a …

Strongly interacting quantum systems described by non-stoquastic Hamiltonians exhibit rich
low-temperature physics. Yet, their study poses a formidable challenge, even for state-of-the …

We study the spin-excitation spectrum (dynamic structure factor) of the spin-1/2 square-
lattice Heisenberg antiferromagnet and an extended model (the JQ model) including four …