591 citations · 2.3k across the 29 of their papers we have counts for
29 papers
Absence of spin liquid phase in the Heisenberg model on the square lattice
Xiangjian Qian, Mingpu Qin
We perform an in-depth investigation of the phase diagram of the Heisenberg model on the square lattice. We take advantage of Density Matrix Renormalization Group and Ful…
Half-filled stripe to Nel antiferromagnetism transition in the -Hubbard model on honeycomb lattice
Yang Shen, Mingpu Qin
We study the ground state of the doped Hubbard model on honeycomb lattice with both nearest () and next-nearest neighboring hoppings () in the small doping and strongly inte…
The Performance of VQE across a phase transition point in the - model on kagome lattice
Yuheng Guo, Mingpu Qin
Variational quantum eigensolver (VQE) is an efficient classical-quantum hybrid method to take advantage of quantum computers in the Noisy Intermediate-Scale Quantum (NISQ) era. In…
Coexistence of superconductivity with partially filled stripes in the Hubbard model
Hao Xu, Chia-Min Chung, Mingpu Qin +3
Combining the complementary capabilities of two of the most powerful modern computational methods, we find superconductivity in both the electron- and hole-doped regimes of the two…
Reexamining doped two-legged Hubbard ladders
Yang Shen, Guang-Ming Zhang, Mingpu Qin
We revisit the ground state of the Hubbard model on 2-legged ladders in this work. We perform DMRG calculation on large system sizes with large kept states and perform extrapolatio…
Self-consistent optimization of the trial wave-function in constrained path auxiliary field Quantum Monte Carlo using mixed estimators
Mingpu Qin
We propose a new scheme to implement the self-consistent optimization of the trial wave-function in constrained path auxiliary field Quantum Monte Carlo (CP-AFQMC) in the framewok…
Quantum phase transition in magnetic nanographenes on a lead superconductor
Yu Liu, Can Li, Fu-Hua Xue +14
Quantum spins, referred to the spin operator preserved by full SU(2) symmetry in the absence of the magnetic anistropy, have been proposed to host exotic interactions with supercon…
Comparative study of charge order in undoped infinite-layer nickelate superconductors
Yang Shen, Mingpu Qin, Guang-Ming Zhang
To understand the microscopic mechanism of the charge order observed in the parent compound of the infinite-layer nickelate superconductors, we consider a minimal three-legged mode…
Stripes and spin-density waves in the doped two-dimensional Hubbard model: ground state phase diagram
Hao Xu, Hao Shi, Ettore Vitali +2
We determine the spin and charge orders in the ground state of the doped two-dimensional (2D) Hubbard model in its simplest form, namely with only nearest-neighbor hopping and on-s…
Effect of hole doping on the 120 degree order in the triangular lattice Hubbard model: A Hartree-Fock revisit
Mingpu Qin
We revisit the unrestricted Hartree Fock study on the evolution of the ground state of the Hubbard model on the triangular lattice with hole doping. At half-filling, it is known th…
From Tree Tensor Network to Multiscale Entanglement Renormalization Ansatz
Xiangjian Qian, Mingpu Qin
Tensor Network States (TNS) offer an efficient representation for the ground state of quantum many body systems and play an important role in the simulations of them. Numerous TNS…
Stripe order in the doped Hubbard model on the honeycomb lattice
Xu Yang, Hao Zheng, Mingpu Qin
We study the ground state properties of the doped Hubbard model with strong interactions on honeycomb lattice by the Density Matrix Renormalization Group (DMRG) method. At half-fil…
Stripe versus superconductivity in the doped Hubbard model on the honeycomb lattice
Mingpu Qin
We study the ground state of the doped Hubbard model on the honeycomb lattice in the small doping and strongly interacting region. The nature of the ground state by doping holes in…
The Hubbard model: A computational perspective
Mingpu Qin, Thomas Schäfer, Sabine Andergassen +2
The Hubbard model is the simplest model of interacting fermions on a lattice and is of similar importance to correlated electron physics as the Ising model is to statistical mechan…
Combination of Tensor Network States and Green's function Monte Carlo
Mingpu Qin
We propose an approach to study the ground state of quantum many-body systems in which Tensor Network States (TNS), specifically Projected Entangled Pair States (PEPS), and Green's…
Plaquette versus ordinary -wave pairing in the -Hubbard model on a width 4 cylinder
Chia-Min Chung, Mingpu Qin, Shiwei Zhang +2
The Hubbard model and its extensions are important microscopic models for understanding high- superconductivity in cuprates. In the model with next-nearest-neighbor hopping $…
Absence of superconductivity in the pure two-dimensional Hubbard model
Mingpu Qin, Chia-Min Chung, Hao Shi +5
We study the superconducting pairing correlations in the ground state of the doped Hubbard model -- in its original form without hopping beyond nearest neighbor or other perturbing…
Creating locally interacting Hamiltonians in the synthetic frequency dimension for photons
Luqi Yuan, Avik Dutt, Mingpu Qin +2
The recent emerging field of synthetic dimension in photonics offers a variety of opportunities for manipulating different internal degrees of freedom of photons such as the spectr…
Finite-temperature Auxiliary-Field Quantum Monte Carlo: Self-Consistent Constraint and Systematic Approach to Low Temperatures
Yuan-Yao He, Mingpu Qin, Hao Shi +2
We describe an approach for many-body calculations with a finite-temperature, grand canonical ensemble formalism using auxiliary-field quantum Monte Carlo (AFQMC) with a self-consi…
Response functions for the two-dimensional ultracold Fermi gas: dynamical BCS theory and beyond
Ettore Vitali, Hao Shi, Mingpu Qin +1
Response functions are central objects in physics. They provide crucial information about the behavior of physical systems, and they can be directly compared with scattering experi…
Numerical results on the short-range spin correlation functions in the ground state of the two-dimensional Hubbard model
Mingpu Qin, Hao Shi, Shiwei Zhang
Optical lattice experiments with ultracold fermion atoms and quantum gas microscopy have recently realized direct measurements of magnetic correlations at the site-resolved level.…
Visualizing the BEC-BCS crossover in the two-dimensional Fermi gas: pairing gaps and dynamical response functions from ab initio computations
Ettore Vitali, Hao Shi, Mingpu Qin +1
Experiments with ultracold atoms provide a highly controllable laboratory setting with many unique opportunities for precision exploration of quantum many-body phenomena. The natur…
Stripe order in the underdoped region of the two-dimensional Hubbard model
Bo-Xiao Zheng, Chia-Min Chung, Philippe Corboz +7
Competing inhomogeneous orders are a central feature of correlated electron materials including the high-temperature superconductors. The two- dimensional Hubbard model serves as t…
Coupling quantum Monte Carlo and independent-particle calculations: self-consistent constraint for the sign problem based on density or density matrix
Mingpu Qin, Hao Shi, Shiwei Zhang
Quantum Monte Carlo (QMC) methods are one of the most important tools for studying interacting quantum many-body systems. The vast majority of QMC calculations in interacting fermi…