67 citations · 294 across the 19 of their papers we have counts for
19 papers
Full-Wave Green's-Function Modeling of Collective Single-Photon Emission in Non-Markovian Open-System QED with Finite-Bandwidth Compensation of Dispersive Interactions
Hyunwoo Choi, Jisang Seo, Junwoo Gim +3
This work presents a full-wave Green's function framework for modeling collective and coherent single-photon emission from multiple quantum emitters embedded in complex electromagn…
Efficient tensor-network simulation for the few-atom multimode Dicke model via coupling-matrix transformation
Christopher J. Ryu, Dong-Yeop Na, Weng C. Chew +1
We present a novel generalization of the chain mapping technique that applies to multi-atom, multimode systems by making use of coupling matrix transformations. This is extremely u…
Numerical Framework for Modeling Quantum Electromagnetic Systems Involving Finite-Sized Lossy Dielectric Objects in Free Space
Dong-Yeop Na, Thomas E Roth, Jie Zhu +2
The modified Langevin noise formalism has been proposed for the correct charaterization of quantum electromagnetic fields in the presence of finite-sized lossy dielectric objects i…
Generalized Helmholtz Decomposition for Modal Analysis of Electromagnetic Problems in Inhomogeneous Media
Jie Zhu, Thomas E. Roth, Dong-Yeop Na +1
Potential-based formulation with generalized Lorenz gauge can be used in the quantization of electromagnetic fields in inhomogeneous media. However, one often faces the redundancy…
Matrix product states and numerical mode decomposition for the analysis of gauge-invariant cavity quantum electrodynamics
Christopher J. Ryu, Dong-Yeop Na, Weng C. Chew
There has been a problem of gauge ambiguities with the Rabi Hamiltonian due to the fact that it can be derived from two formally different but physically equivalent fundamental Ham…
Fast Numerical Integration Techniques for 2.5-Dimensional Inverse Problems
Mert Hidayetoglu, Michael Oelze, Erhan Kudeki +1
Inverse scattering involving microwave and ultrasound waves require numerical solution of nonlinear optimization problem. To alleviate the computational burden of a full three-dime…
An A-Phi Formulation Solver in Electromagnetics Based on Discrete Exterior Calculus
Boyuan Zhang, Dong-Yeop Na, Dan Jiao +1
An efficient numerical solver for the A-Phi formulation in electromagnetics based on the discrete exterior calculus (DEC) is proposed in this paper. The A-Phi formulation is immune…
Quantum-Plasmonic Dynamics Modeled via a Modified Langevin Noise Formalism: Numerical Studies of Single-Photon Emission and Two-Photon Interference
Jisang Seo, Hyunwoo Choi, Thomas E Roth +3
Recent studies have established and rigorously validated a modified Langevin noise formalism that enables first-principles quantization of electromagnetic fields in open and dissip…
An Introduction to the Transmon Qubit for Electromagnetic Engineers
Thomas E. Roth, Ruichao Ma, Weng C. Chew
One of the most popular approaches being pursued to achieve a quantum advantage with practical hardware are superconducting circuit devices. Although significant progress has been…
Numerical Electromagnetic Frequency Domain Analysis with Discrete Exterior Calculus
Shu Chen, Weng Cho Chew
In this paper, we perform a numerical analysis in frequency domain for various electromagnetic problems based on discrete exterior calculus (DEC) with an arbitrary 2-D triangular o…
Dissipative Quantum Electromagnetics
Wei E. I. Sha, Aiyin Y. Liu, Weng Cho Chew
The dissipative quantum electromagnetics is introduced in a comprehensive manner as a field-matter-bath coupling problem. First, the matter is described by a cluster of Lorentz osc…
Sum-Frequency and Second-Harmonic Generation from Plasmonic Nonlinear Nanoantennas
Xiaoyan Y. Z. Xiong, Li Jun Jiang, Wei E. I. Sha +2
Plasmonic nanostructures that support surface plasmon (SP) resonance potentially provide a route for the development of nanoengineered nonlinear optical devices. In this work, seco…
A Unified Hamiltonian Solution to Maxwell-Schrodinger Equations for Modeling Electromagnetic Field-Particle Interaction
Yongpin P. Chen, Wei E. I. Sha, Li Jun Jiang +3
A novel unified Hamiltonian approach is proposed to solve Maxwell-Schrodinger equation for modeling the interaction between classical electromagnetic (EM) fields and particles. Bas…
Strongly Enhanced and Directionally Tunable Second-Harmonic Radiation by a Plasmonic Particle-in-Cavity Nanoantenna
Xiaoyan Y. Z. Xiong, Li Jun Jiang, Wei E. I. Sha +4
Second-harmonic (SH) generation is tremendously important for nonlinear sensing, microscopy and communication system. One of the great challenges of current designs is to enhance t…
Combined Field Integral Equation Based Theory of Characteristic Mode
Qi I. Dai, Qin S. Liu, Hui Gan +1
Conventional electric field integral equation based theory is susceptible to the spurious internal resonance problem when the characteristic modes of closed perfectly conducting ob…
Multilevel Fast Multipole Algorithm for Characteristic Mode Analysis
Qi I. Dai, Jun Wei Wu, Ling Ling Meng +2
Characteristic mode (CM) analysis poses challenges in computational electromagnetics (CEM) as it calls for efficient solutions of dense generalized eigenvalue problems (GEP). Multi…
A New Multilevel Method for Electrostatic Problems through Hierarchical Loop Basis
Z. -H. Ma, W. C. Chew, Y. M. Wu +1
We present a new multilevel method for calculating Poisson's equation, which often arises form electrostatic problems, by using hierarchical loop bases. This method, termed hierarc…
Casimir Force for Arbitrary Objects Using the Argument Principle and Boundary Element Methods
Phillip R Atkins, Weng Cho Chew, Qi I. Dai +1
Recent progress in the simulation of Casimir forces between various objects has allowed traditional computational electromagnetic solvers to be used to find Casimir forces in arbit…
Efficient Evaluation of Casimir Force in Arbitrary Three-dimensional Geometries by Integral Equation Methods
Jie L. Xiong, Mei Song Tong, Phillip Atkins +1
In this paper, we generalized the surface integral equation method for the evaluation of Casimir force in arbitrary three-dimensional geometries. Similar to the two-dimensional cas…