Phys. Rev. E 76, 047701 (2007) [4 pages]Some fundamental problems for an energy-conserving adaptive-resolution molecular dynamics schemeReceived 23 July 2007; published 15 October 2007 Adaptive-resolution molecular dynamics (MD) schemes allow for changing the number of degrees of freedom on the fly and preserve the free exchange of particles between regions of different resolution. There are two main alternatives on how to design the algorithm to switch resolution using auxiliary “switching” functions: force based and potential energy based approaches. In this work we show that, in the framework of classical MD, the latter presents fundamental conceptual problems which make unlikely, if not impossible, the derivation of a robust algorithm based on the potential energy. © 2007 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevE.76.047701
DOI:
10.1103/PhysRevE.76.047701
PACS:
02.70.Ns, 05.10.−a, 02.60.Lj
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