130 citations · 771 across the 55 of their papers we have counts for
19 papers · 1 filter
The numerical value for a universal quantity of a two-dimensional dimerized quantum antiferromagnet
Fu-Jiun Jiang
The numerical value of a universal quantity associated with the quantum critical regime, namely , for a two-dimensional (2D) dimerized spin-1/2 antiferromagnet is calcul…
Evidence of anomalous Curie constants for nonmagnetic impurities in a critical 2-dimensional model on the honeycomb lattice
L. -W. Huang, J-H. Peng, F. -J. Jiang
The Curie constants of a spin-1/2 and a spin-1 impurities are calculated using the quantum Monte Carlo simulations. Here the impurity…
Quantum criticality at finite temperature for two-dimensional models on the square and the honeycomb lattices
J. -H. Peng, D. -R. Tan, L. -W. Huang +1
We study the quantum criticality at finite temperature for three two-dimensional (2D) models using the first principle nonperturbative quantum Monte Carlo calculations (QMC)…
Universal scaling of three-dimensional dimerized quantum antiferromagnets on bipartite lattices
Deng-Ruei Tan, Fu-Jiun Jiang
Using the first principles quantum Monte Carlo (QMC) calculations, we investigate the previously established universal scaling between the Néel temperature and the staggered…
Universal quantum criticality at finite temperature for two-dimensional disordered and clean dimerized spin- antiferromagnets
D. -R. Tan, F. -J. Jiang
The quantum critical regime (QCR) of a two-dimensional (2D) disordered and a 2D clean dimerized spin- Heisenberg models are studied using the first principles nonpertu…
From the Quantum Link Model on the Honeycomb Lattice to the Quantum Dimer Model on the Kagomé Lattice: Phase Transition and Fractionalized Flux Strings
D. Banerjee, F. -J. Jiang, T. Z. Olesen +2
We consider the -d quantum link model on the honeycomb lattice and show that it is equivalent to a quantum dimer model on the Kagomé lattice. The model has crystalli…
Monte Carlo determination of the low-energy constants for a two-dimensional spin-1 Heisenberg model with spatial anisotropy
Fu-Jiun Jiang
The low-energy constants, namely the spin stiffness , the staggered magnetization density per area, and the spinwave velocity of the two-dimensional (2D) spin…
Finite-Volume Energy Spectrum, Fractionalized Strings, and Low-Energy Effective Field Theory for the Quantum Dimer Model on the Square Lattice
D. Banerjee, M. B"ogli, C. P. Hofmann +3
We present detailed analytic calculations of finite-volume energy spectra, mean field theory, as well as a systematic low-energy effective field theory for the square lattice quant…
Real-time simulation of non-equilibrium transport of magnetization in large open quantum spin systems driven by dissipation
Debasish Banerjee, Florian Hebenstreit, Fu-Jiun Jiang +1
Using quantum Monte Carlo, we study the non-equilibrium transport of magnetization in large open strongly correlated quantum spin systems driven by purely dissipative…
Real-time dynamics of open quantum spin systems driven by dissipative processes
Florian Hebenstreit, Debasish Banerjee, Manes Hornung +3
We study the real-time evolution of large open quantum spin systems in two spatial dimensions, whose dynamics is entirely driven by a dissipative coupling to the environment. We co…
Real-Time Simulation of Large Open Quantum Spin Systems driven by Measurements
D. Banerjee, F. -J. Jiang, M. Kon +1
We consider a large quantum system with spins whose dynamics is driven entirely by measurements of the total spin of spin pairs. This gives rise to a dissipative coup…
The (2+1)-d U(1) Quantum Link Model Masquerading as Deconfined Criticality
D. Banerjee, F. -J. Jiang, P. Widmer +1
The -d U(1) quantum link model is a gauge theory, amenable to quantum simulation, with a spontaneously broken SO(2) symmetry emerging at a quantum phase transition. Its low-…
Constraint Effective Potential of the Magnetization in the Quantum XY Model
U. Gerber, C. P. Hofmann, F. -J. Jiang +3
Using an improved estimator in the loop-cluster algorithm, we investigate the constraint effective potential of the magnetization in the spin quantum XY model. The n…
Revisiting the Phase Transition of Spin-1/2 Heisenberg Model with a Spatially Staggered Anisotropy on the Square Lattice
F. -J. Jiang
Puzzled by the indication of a new critical theory for the spin-1/2 Heisenberg model with a spatially staggered anisotropy on the square lattice as suggested in \cite{Wenzel08}, we…
The Phase Transition of the Spin-1/2 Heisenberg Model with a Spatially Staggered Anisotropy on the Square Lattice
F. -J. Jiang
Puzzled by the indication of a new critical theory for the spin-1/2 Heisenberg model with a spatially staggered anisotropy on the square lattice as suggested in \cite{Wenzel08}, we…
Subtlety of Determining the Critical Exponent of the Spin-1/2 Heisenberg Model with a Spatially Staggered Anisotropy on the Honeycomb Lattice
F. -J. Jiang, U. Gerber
Puzzled by the indication of a new critical theory for the spin-1/2 Heisenberg model with a spatially staggered anisotropy on the square lattice as suggested in \cite{Wenzel08}, we…
Constraint Effective Potential of the Staggered Magnetization in an Antiferromagnet
U. Gerber, C. P. Hofmann, F. -J. Jiang +2
We employ an improved estimator to calculate the constraint effective potential of the staggered magnetization in the spin quantum Heisenberg model using a loop-clus…
Loop-Cluster Simulation of the - Model on the Honeycomb Lattice
F. -J. Jiang, F. Kämpfer, M. Nyfeler +1
Inspired by the lattice structure of the unhydrated variant of the superconducting material NaCoOyHO at , we study the - model on a honeycomb la…
From an Antiferromagnet to a Valence Bond Solid: Evidence for a First Order Phase Transition
F. -J. Jiang, M. Nyfeler, S. Chandrasekharan +1
Using a loop-cluster algorithm we investigate the spin 1/2 Heisenberg antiferromagnet on a square lattice with exchange coupling and an additional four-spin interaction of stre…