72 citations · 178 across the 15 of their papers we have counts for
15 papers
Reply to Brankov et al.'s "Comment on equivalence between quantum phase transition phenomena in radiation-matter and magnetic systems"
J. Reslen, L. Quiroga, N. F. Johnson
Reply to Comment quant-ph/0506207 by J.G.Brankov et al.
From old wars to new wars and global terrorism
N. Johnson, M. Spagat, J. Restrepo +4
Even before 9/11 there were claims that the nature of war had changed fundamentally. The 9/11 attacks created an urgent need to understand contemporary wars and their relationship…
Using Artificial Market Models to Forecast Financial Time-Series
Nachi Gupta, Raphael Hauser, Neil F. Johnson
We discuss the theoretical machinery involved in predicting financial market movements using an artificial market model which has been trained on real financial data. This approach…
Decision Making, Strategy dynamics, and Crowd Formation in Agent-based models of Competing Populations
K. P. Chan, Pak Ming Hui, Neil F. Johnson
The Minority Game (MG) is a basic multi-agent model representing a simplified and binary form of the bar attendance model of Arthur. The model has an informationally efficient phas…
Transitions in collective response in multi-agent models of competing populations driven by resource level
Sonic H. Y. Chan, T. S. Lo, P. M. Hui +1
We aim to study the effects of controlling the resource level in agent-based models. We study, both numerical and analytically, a Binary-Agent-Resource (B-A-R) model in which a…
Exploring super-radiant phase transitions via coherent control of a multi-qubit--cavity system
Timothy C. Jarrett, Chiu Fan Lee, Neil F. Johnson
We propose the use of coherent control of a multi-qubit--cavity QED system in order to explore novel phase transition phenomena in a general class of multi-qubit--cavity systems. I…