340 citations · 693 across the 20 of their papers we have counts for
20 papers
Neural-network quantum state study of the long-range antiferromagnetic Ising chain
Jicheol Kim, Dongkyu Kim, Dong-Hee Kim
We investigate quantum phase transitions in the transverse field Ising chain with algebraically decaying long-range (LR) antiferromagnetic interactions using the variational Monte…
Slowest and Fastest Information Scrambling in the Strongly Disordered XXZ Model
Myeonghyeon Kim, Dong-Hee Kim
We present a perturbation method to compute the out-of-time-ordered correlator in the strongly disordered Heisenberg XXZ model in the deep many-body localized regime. We characteri…
Tensor network calculation of the logarithmic correction exponent in the XY model
Seongpyo Hong, Dong-Hee Kim
We study the logarithmic correction to the scaling of the first Lee-Yang (LY) zero in the classical model on square lattices by using tensor renormalization group methods. In…
Emergence of a finite-size-scaling function in the supervised learning of the Ising phase transition
Dongkyu Kim, Dong-Hee Kim
We investigate the connection between the supervised learning of the binary phase classification in the ferromagnetic Ising model and the standard finite-size-scaling theory of the…
Logarithmic finite-size scaling correction to the leading Fisher zeros in the p-state clock model: A higher-order tensor renormalization group study
Seongpyo Hong, Dong-Hee Kim
We investigate the finite-size-scaling (FSS) behavior of the leading Fisher zero of the partition function in the complex temperature plane in the -state clock models of a…
Typical growth behavior of the out-of-time-ordered commutator in many-body localized systems
J. Lee, D. Kim, D. -H. Kim
We investigate the typicality of the growth behavior of the out-of-time-ordered commutator (OTOC) in the many-body localized (MBL) quantum spin chains across random disorder realiz…
Smallest Neural Network to Learn the Ising Criticality
Dongkyu Kim, Dong-Hee Kim
Learning with an artificial neural network encodes the system behavior in a feed-forward function with a number of parameters optimized by data-driven training. An open question is…
First-order transitions and thermodynamic properties in the 2D Blume-Capel model: the transfer-matrix method revisited
Moonjung Jung, Dong-Hee Kim
We investigate the first-order transition in the spin-1 two-dimensional Blume-Capel model in square lattices by revisiting the transfer-matrix method. With large strip widths incre…
Partition function zeros of the p-state clock model in the complex temperature plane
Dong-Hee Kim
We investigate the partition function zeros of the two-dimensional -state clock model in the complex temperature plane by using the Wang-Landau method. For , , , and…
Induced interactions in the BCS-BEC crossover of two-dimensional Fermi gases with Rashba spin-orbit coupling
Juhee Lee, Dong-Hee Kim
We investigate the Gorkov--Melik-Barkhudarov (GM) correction to superfluid transition temperature in two-dimensional Fermi gases with Rashba spin-orbit coupling (SOC) across the SO…
Comment on Influence of induced interactions on superfluid properties of quasi-two-dimensional dilute Fermi gases with spin-orbit coupling
Juhee Lee, Dong-Hee Kim
In an article in 2013, Caldas et al. [Phys. Rev. A 88, 023615 (2013)] derived analytical expressions of the induced interaction within the scheme of Gorkov and Melik-Barkhudrov in…
Geometric origin of superfluidity in the Lieb lattice flat band
Aleksi Julku, Sebastiano Peotta, Tuomas Vanhala +2
The ground state and transport properties of the Lieb lattice flat band in the presence of an attractive Hubbard interaction are considered. It is shown that the superfluid weight…
First-order phase transition and tricritical scaling behavior of the Blume-Capel model: a Wang-Landau sampling approach
Wooseop Kwak, Joohyeok Jeong, Juhee Lee +1
We investigate the tricritical scaling behavior of the two-dimensional spin- Blume-Capel model using the Wang-Landau method measuring the joint density of states for lattice siz…
Non-local quantum fluctuations and fermionic superfluidity in the imbalanced attractive Hubbard model
M. O. J. Heikkinen, D. -H. Kim, M. Troyer +1
We study fermionic superfluidity in strongly anisotropic optical lattices with attractive interactions utilizing the cluster DMFT method, and focusing in particular on the role of…
Moving perturbation in a one-dimensional Fermi gas
A. -M. Visuri, D. -H. Kim, J. J. Kinnunen +2
We simulate a balanced attractively interacting two-component Fermi gas in a one-dimensional lattice perturbed with a moving potential well or barrier. Using the time-evolving bloc…
Finite temperature stability and dimensional crossover of exotic superfluidity in lattices
Miikka O. J. Heikkinen, Dong-Hee Kim, Päivi Törmä
We investigate exotic paired states of spin-imbalanced Fermi gases in anisotropic lattices, tuning the dimension between one and three. We calculate the finite temperature phase di…
Topological transitions of gapless paired states in mixed-geometry lattices
Dong-Hee Kim, Joel S. J. Lehikoinen, Päivi Törmä
We propose a mixed-geometry system of fermionic species selectively confined in lattices of different geometry. We investigate how such asymmetry can lead to exotic multiband fermi…
Fulde-Ferrell--Larkin-Ovchinnikov state in the dimensional crossover between one- and three-dimensional lattices
Dong-Hee Kim, Päivi Törmä
We present a full phase diagram for the one-dimensional (1D) to three-dimensional (3D) crossover of the Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) state in an attractive Hubbard model…
Exotic superfluid states of lattice fermions in elongated traps
D. -H. Kim, J. J. Kinnunen, J. -P. Martikainen +1
We present real-space dynamical mean-field theory calculations for attractively interacting fermions in three-dimensional lattices with elongated traps. The critical polarization i…
Path integral Monte Carlo study of the interacting quantum double-well model: Quantum phase transition and phase diagram
Dong-Hee Kim, Yu-Cheng Lin, Heiko Rieger
The discrete time path integral Monte Carlo (PIMC) with a one-particle density matrix approximation is applied to study the quantum phase transition in the coupled double-well chai…