Imperial College London

Emeritus Professor Ray Rivers

Faculty of Natural SciencesDepartment of Physics

Distinguished Research Fellow
 
 
 
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Contact

 

+44 (0)20 7594 7830r.rivers Website

 
 
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Location

 

509Huxley BuildingSouth Kensington Campus

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Summary

 

Summary

I am a member of the Theoretical Physics Group and the cross-disciplinary Centre for Complexity Science (CCS), My current research follows two broad, but very different, paths that reflect this duality; quantum field theory and complex spatial networks.

My work on complexity, which is currently my major activity, is frequently in collaboration with Tim Evans of the Theoretical Physics Group and students at the CCS and addresses applications and issues in modelling archaeological data and its networks. In this I am part of a mainly European grouping incorporating computer scientists and archaeologists (in particular, ETH Zurich, U. of Aarhus, Tech. U. of Prague, U. of Kiev, U. of Paris 1, U. of Paris Dauphine, U. of Toronto). Such modelling is strongly influenced by that used in contemporary urban planning for transport, commuting and city development and by ecologists and economists. Like astrophysics, archaeology is intrinsically Bayesian (although data is very poor)  and an information-theoretic approach, e.g. MaxEnt,, can be very productive. I am currently using generalised entropies (Renyi/Tsallis) to help understand the complexity and most useful ontologies of data sets.

Whereas quantum field theory papers can be found easily on the arXiv, in archaeology no such archiving exits. My archaeology papers occur equally in journals (e.g. Antiquity) and monographs (sometimes published years after the event). Tim Evans' web page gives access to some of them.

Publications

Journals

Rivers R, Evans T, 2020, How do we avoid imposing the present on the past when modelling spatial interactions?, Documenta Praehistorica, Vol:47, ISSN:1318-6701, Pages:462-475

Lee D-S, Lin C-Y, Rivers RJ, 2020, Large phonon time-of-flight fluctuations in expanding flat condensates of cold Fermi gases, Journal of Physics-condensed Matter, Vol:32, ISSN:0953-8984

Rivers RJ, Steer DA, Lin C-Y, et al., 2018, When are two fermions a simple boson? New Gross-Pitaevskii actions for cold Fermi condensates, Annals of Physics, Vol:396, ISSN:0003-4916, Pages:495-516

Hsiang J-T, Lee D-S, Lin C-Y, et al., 2015, Quantum sound-cone fluctuations in cold Fermi gases: Phonon propagation, Physical Review A, Vol:91, ISSN:1050-2947

Software

Rivers R, Knitter D, Bilger M, et al., 2018, CRC1266-A2/moin: Release after Moin Summer School, v.1.01

More Publications