Published online by Cambridge University Press: 01 April 2022
This paper examines the justifications for using infinite systems to ‘recover’ thermodynamic properties, such as phase transitions (PT), critical phenomena (CP), and irreversibility, from the micro-structure of matter in bulk. Section 2 is a summary of such rigorous methods as in taking the thermodynamic limit (TL) to recover PT and in using renormalization (semi-) group approach (RG) to explain the universality of critical exponents. Section 3 examines various possible justifications for taking TL on physically finite systems. Section 4 discusses the legitimacy of applying TL to the problem of irreversibility and assesses the repercussions for its legitimacy on its home turf.
I would like to thank Gérard Emch for discussions on topics I deal with in this paper. I would also like to thank Bob Batterman and Craig Callender for questions and comments on an earlier draft. This paper is supported in part by a NSF grant (SES-9910889).