activity
20112025
most citedAbsence of Luther-Emery Superconducting Phase in the Three-Band Model for Cuprate Ladders

11 citations · 38 across the 9 of their papers we have counts for

collaborators

9 papers

quant-ph2025

Machine Learns Quantum Complexity

Dongsu Bak, Su-Hyeong Kim, Sangnam Park +1

We study how a machine based on deep learning algorithms learns Krylov spread complexity in quantum systems with N x N random Hamiltonians drawn from the Gaussian unitary ensemble.…

cond-mat.str-el2023★ 5 cited

Doping asymmetry in the three-band Hamiltonian for cuprate ladders: failure of the standard model of superconductivity in cuprates

Jeong-Pil Song, Sumit Mazumdar, R. Torsten Clay

The relevance of the single-band two-dimensional Hubbard model to superconductivity in the doped cuprates has recently been questioned, based on Density matrix Renormalization Grou…

cond-mat.str-el2022★ 2 cited

Valence Transition Theory of the Pressure-Induced Dimensionality Crossover in Superconducting SrCaCuO

Jeong-Pil Song, R. Torsten Clay, Sumit Mazumdar

More than three decades after the discovery of superconductivity (SC) in the cuprates, the nature of the "normal" state and the mechanism of SC remain mysterious. One popular theor…

cond-mat.str-el2020★ 11 cited

Absence of Luther-Emery Superconducting Phase in the Three-Band Model for Cuprate Ladders

Jeong-Pil Song, Sumit Mazumdar, R. Torsten Clay

Correlated-electron theories of superconductivity in layered cuprates often start from the premise of a gapped spin-liquid phase proximate to the superconducting state. This assump…

gr-qc2018★ 3 cited

Patterns of Gravitational Cooling in Schrodinger Newton System

Dongsu Bak, Seulgi Kim, Hyunsoo Min +1

We study time evolution of Schrodinger-Newton system using the self-consistent Crank-Nicolson method to understand the dynamical characteristics of nonlinear systems. Compactifying…

cond-mat.str-el2018★ 7 cited

Noncollinear magnetic sampling method for paramagnetic Mott insulator MnO

Sangmoon Yoon, Seoung-Hun Kang, Sangmin Lee +4

We present a new approach based on the static density functional theory (DFT) to describe paramagentic MnO, which is a representative paramagnetic Mott insulator. We appended the s…

hep-th2017★ 5 cited

Holographic Micro Thermofield Geometries of BTZ Black Holes

Dongsu Bak, Chanju Kim, Kyung Kiu Kim +1

We find general deformations of BTZ spacetime and identify the corresponding thermofield initial states of the dual CFT. We deform the geometry by introducing bulk fields dual to p…

hep-th2016★ 1 cited

Geometric Monte Carlo and Black Janus Geometries

Dongsu Bak, Chanju Kim, Kyung Kiu Kim +2

We describe an application of the Monte Carlo method to the Janus deformation of the black brane background. We present numerical results for three and five dimensional black Janus…

cond-mat.str-el2011★ 4 cited

Ground state and finite temperature behavior of 1/4-filled band zigzag ladders

R. T. Clay, J. P. Song, S. Dayal +1

We consider the simplest example of lattice frustration in the 1/4-filled band, a one-dimensional chain with next-nearest neighbor interactions. For this zigzag ladder with electro…