Publications

2024

1. Simulations of the dynamics of quantum impurity problems with matrix product states

   Matteo M. Wauters, Chia-Min Chung, Lorenzo Maffi, and 1 more author

   Phys. Rev. B, Mar 2024
2. Coexistence of superconductivity with partially filled stripes in the Hubbard model

   Hao Xu, Chia-Min Chung, Mingpu Qin, and 3 more authors

   Science, Mar 2024

   Abs

   The Hubbard model is an iconic model in quantum many-body physics and has been intensely studied, especially since the discovery of high-temperature cuprate superconductors. Combining the complementary capabilities of two computational methods, we found superconductivity in both the electron- and hole-doped regimes of the two-dimensional Hubbard model with next-nearest-neighbor hopping. In the electron-doped regime, superconductivity was weaker and was accompanied by antiferromagnetic Néel correlations at low doping. The strong superconductivity on the hole-doped side coexisted with stripe order, which persisted into the overdoped region with weaker hole-density modulation. These stripe orders varied in fillings between 0.6 and 0.8. Our results suggest the applicability of the Hubbard model with next-nearest hopping for describing cuprate high–transition temperature (Tc) superconductivity. Although seemingly simple, the Hubbard model, which describes a many-body interacting system on a lattice, is difficult to investigate numerically. This has made it challenging to understand whether the model can capture the phenomenology of real materials such as high-temperature cuprate superconductors. Xu et al. made progress in answering this question by using two complementary methods to study the Hubbard model with nonzero next-nearest neighbor hopping. The researchers found that the model supports superconductivity for doping with both electrons and holes and that the ground-state pairing order parameter displays dome-like structures as a function of doping. These findings bear resemblance to the cuprate phase diagram. —Jelena Stajic

2023

1. Topological Kondo model out of equilibrium

   Matteo M. Wauters, Chia-Min Chung, Lorenzo Maffi, and 1 more author

   Phys. Rev. B, Dec 2023

2022

1. Matrix product state simulations of quantum quenches and transport in Coulomb blockaded superconducting devices

   Chia-Min Chung, Matteo M. Wauters, and Michele Burrello

   Phys. Rev. B, Sep 2022

2021

1. Z_N lattice gauge theory in a ladder geometry

   Jens Nyhegn, Chia-Min Chung, and Michele Burrello

   Phys. Rev. Res., Feb 2021

2020

1. Absence of Superconductivity in the Pure Two-Dimensional Hubbard Model

   Mingpu Qin, Chia-Min Chung, Hao Shi, and 5 more authors

   Phys. Rev. X, Jul 2020
2. Entanglement Renyi Negativity across a Finite Temperature Transition: A Monte Carlo Study

   Kai-Hsin Wu, Tsung-Cheng Lu, Chia-Min Chung, and 2 more authors

   Phys. Rev. Lett., Sep 2020
3. Spin-lattice Coupling and the Emergence of the Trimerized Phase in the S=1 Kagome Antiferromagnet Na_2Ti_3Cl_8

   Arpita Paul, Chia-Min Chung, Turan Birol, and 1 more author

   Phys. Rev. Lett., Apr 2020
4. Plaquette versus ordinary d-wave pairing in the t’-Hubbard model on a width-4 cylinder

   Chia-Min Chung, Mingpu Qin, Shiwei Zhang, and 2 more authors

   Phys. Rev. B, Jul 2020

2019

1. Resonating quantum three-coloring wave functions for the kagome quantum antiferromagnet

   Hitesh J. Changlani, Sumiran Pujari, Chia-Min Chung, and 1 more author

   Phys. Rev. B, Mar 2019

2017

1. Stripe order in the underdoped region of the two-dimensional Hubbard model

   Bo-Xiao Zheng, Chia-Min Chung, Philippe Corboz, and 7 more authors

   Science, Mar 2017

2015

1. Solutions of the Two-Dimensional Hubbard Model: Benchmarks and Results from a Wide Range of Numerical Algorithms

   J. P. F. LeBlanc, Andrey E. Antipov, Federico Becca, and 22 more authors

   Phys. Rev. X, Dec 2015

2014

1. Entanglement negativity via the replica trick: A quantum Monte Carlo approach

   Chia-Min Chung, Vincenzo Alba, Lars Bonnes, and 2 more authors

   Phys. Rev. B, Aug 2014
2. Entanglement spectroscopy using quantum Monte Carlo

   Chia-Min Chung, Lars Bonnes, Pochung Chen, and 1 more author

   Phys. Rev. B, May 2014

2012

1. Quantum and thermal transitions out of the pair-supersolid phase of two-species bosons on a square lattice

   Chia-Min Chung, Shiang Fang, and Pochung Chen

   Phys. Rev. B, Jun 2012

2011

1. Quantum criticality from in situ density imaging

   Shiang Fang, Chia-Min Chung, Ping Nang Ma, and 2 more authors

   Phys. Rev. A, Mar 2011