41 citations · 215 across the 17 of their papers we have counts for
17 papers
Tailoring tensor network techniques to the quantics representation for highly inhomogeneous problems and few body problems
Jheng-Wei Li, Nicolas Jolly, Xavier Waintal
Tensor network techniques are becoming increasingly popular tools to solve partial differential equations within the so-called quantics representation. Their popularity stems from…
Entanglement across scales: Quantics tensor trains as a natural framework for renormalization
Stefan Rohshap, Jheng-Wei Li, Alena Lorenz +4
Understanding entanglement remains one of the most intriguing problems in physics. While particle and site entanglement have been studied extensively, the investigation of length o…
Solving the Gross-Pitaevskii Equation with Quantic Tensor Trains: Ground States and Nonlinear Dynamics
Qian-Can Chen, I-Kang Liu, Jheng-Wei Li +1
We develop a tensor network framework based on the quantic tensor train (QTT) format to efficiently solve the Gross-Pitaevskii equation (GPE), which governs Bose-Einstein condensat…
Reply to comment on "Controlled bond expansion for Density Matrix Renormalization Group ground state search at single-site costs"
Andreas Gleis, Jheng-Wei Li, Jan von Delft
We reply to McCulloch and Osborne's recent comment on our manuscript (Phys. Rev. Lett. 130, 246402 (2023)) on controlled bond expansion (CBE) for density matrix renormalization gro…
Learning tensor networks with tensor cross interpolation: new algorithms and libraries
Yuriel Núñez Fernández, Marc K. Ritter, Matthieu Jeannin +8
The tensor cross interpolation (TCI) algorithm is a rank-revealing algorithm for decomposing low-rank, high-dimensional tensors into tensor trains/matrix product states (MPS). TCI…
Matrix product states and first quantization
Jheng-Wei Li, Xavier Waintal
Common wisdom says that the entanglement of fermionic systems can be low in the second quantization formalism but is extremely large in the first quantization. Hence Matrix Product…
Frustration-Induced Superconductivity in the - Hubbard Model
Changkai Zhang, Jheng-Wei Li, Jan von Delft
The two-dimensional (2D) Hubbard model is widely believed to capture key ingredients of high- superconductivity in cuprate materials. However, compelling evidence remains elus…
Chiral spin liquids with projected Gaussian fermionic entangled pair states
Sen Niu, Jheng-Wei Li, Ji-Yao Chen +1
We study the parton construction of chiral spin liquids (CSLs) using projected Gaussian fermionic entangled pair states (GfPEPSs). First, we show that GfPEPSs can represent generic…
Finite-size subthermal regime in disordered SU(N)-symmetric Heisenberg chains
Dimitris Saraidaris, Jheng-Wei Li, Andreas Weichselbaum +2
SU(N) symmetry is incompatible with the many-body localized (MBL) phase, even when strong disorder is present. However, recent studies have shown that finite-size SU(2) systems exh…
Time-dependent variational principle with controlled bond expansion for matrix product states
Jheng-Wei Li, Andreas Gleis, Jan von Delft
We present a controlled bond expansion (CBE) approach to simulate quantum dynamics based on the time-dependent variational principle (TDVP) for matrix product states. Our method al…
U(1)-symmetric Gaussian fermionic projected entangled paired states and their Gutzwiller projection
Jheng-Wei Li, Jan von Delft, Hong-Hao Tu
We develop a formalism for constructing particle-number-conserving Gaussian fermionic projected entangled pair states [U(1)-GfPEPS] and show that these states can describe ground s…
Controlled bond expansion for DMRG ground state search at single-site costs
Andreas Gleis, Jheng-Wei Li, Jan von Delft
DMRG ground state search algorithms employing symmetries must be able to expand virtual bond spaces by adding or changing symmetry sectors if these lower the energy. Traditional si…
Projector formalism for kept and discarded spaces of matrix product states
Andreas Gleis, Jheng-Wei Li, Jan von Delft
Any matrix product state has a set of associated kept and discarded spaces, needed for the description of , and changes thereof, respectively. These induce a…
Tangle of Spin Double Helices in the Honeycomb Kitaev- Model
Jheng-Wei Li, Nihal Rao, Jan von Delft +2
We investigate the ground-state nature of the honeycomb Kitaev- model in the material-relevant parameter regime through a combination of classical and quantum simulations. The c…
Abelian SU Chiral Spin Liquids on the Square Lattice
Ji-Yao Chen, Jheng-Wei Li, Pierre Nataf +7
In the physics of the Fractional Quantum Hall (FQH) effect, a zoo of Abelian topological phases can be obtained by varying the magnetic field. Aiming to reach the same phenomenolog…
iPEPS study of spin symmetry in the doped - model
Jheng-Wei Li, Benedikt Bruognolo, Andreas Weichselbaum +1
We study the two-dimensional - model on a square lattice using infinite projected entangled pair states (iPEPS). At small doping, multiple orders, such as antiferromagnetic o…
A beginner's guide to non-abelian iPEPS for correlated fermions
Benedikt Bruognolo, Jheng-Wei Li, Jan von Delft +1
Infinite projected entangled pair states (iPEPS) have emerged as a powerful tool for studying interacting two-dimensional fermionic systems. In this review, we discuss the iPEPS co…