73 citations · 155 across the 7 of their papers we have counts for
7 papers
Optical signatures of quantum phase transitions in a light-matter system
Timothy C. Jarrett, Alexandra Olaya-Castro, Neil F. Johnson
Information about quantum phase transitions in conventional condensed matter systems, must be sought by probing the matter system itself. By contrast, we show that mixed matter-lig…
Optically controlled spin-glasses in multi-qubit cavity systems
Timothy C. Jarrett, Chiu Fan Lee, Neil F. Johnson
Recent advances in nanostructure fabrication and optical control, suggest that it will soon be possible to prepare collections of interacting two-level systems (i.e. qubits) within…
Interplay between function and structure in complex networks
Timothy C. Jarrett, Douglas J. Ashton, Mark Fricker +1
We show that abrupt structural transitions can arise in functionally optimal networks, driven by small changes in the level of transport congestion. Our results offer an explanatio…
Abrupt structural transitions involving functionally optimal networks
Timothy C. Jarrett, Douglas J. Ashton, Mark Fricker +1
We show analytically that abrupt structural transitions can arise in functionally optimal networks, driven by small changes in the level of transport congestion. Our findings are b…
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…
Effect of congestion costs on shortest paths through complex networks
Douglas J. Ashton, Timothy C. Jarrett, Neil F. Johnson
We analyze analytically the effect of congestion costs within a physically relevant, yet exactly solvable network model featuring central hubs. These costs lead to a competition be…