The Physical Basis Of The Direction Of Time

This well-received book presents the striking asymmetry of natural phenomena with respect to time reversal and irreversibility. It presents some of the most important classes of physical processes characterizing the arrow of time and strives to uncover its common cosmological root. This third edition has been thoroughly revised to include important new results in the arrow of time in quantum mechanics and quantum cosmology. Both physicists and philosophers of science will find this to be a magnificent survey.

This thoroughly revised 5th edition of Zeh's classic text investigates irreversible phenomena and their foundation in classical, quantum and cosmological settings. It includes new sections on the meaning of probabilities in a cosmological context, irreversible aspects of quantum computers, and various consequences of the expansion of the Universe. In particular, the book offers an analysis of the physical concept of time.

A classic text on irreversibility, and one which clearly distinguishes the latter from time asymmetry. New findings are presented particularly in the chapters on the arrow of time in quantum mechanics and quantum cosmology. Concepts such as decoherence and timelessness are discussed.

The asymmetry of natural phenomena under time reversal is striking. Here Zehinvestigates the most important classes of physical phenomena that characterize the arrow of time, discussing their interrelations as well as striving to uncover a cosmological common root of the phenomena, such as the time-independent wave function of the universe. The description of irreversible phenomena is shown to be fundamentally "observer-related". Both physicists and philosophers of science who reviewed the first edition considered this book a magnificent survey, a concise, technically sophisticated, up-to-date discussion of the subject, showing fine sensivity to some of the crucial philosophicalsubtleties. This new and expanded edition will be welcomed by both students and specialists.

Distinguished physicist examines emotive significance of time, time order of mechanics, time direction of thermodynamics and microstatistics, time direction of macrostatistics, time of quantum physics, more. 1971 edition.

Mind, Meaning, and Reality contains fifteen philosophical papers by D. H. Mellor, including a new defence of 'success semantics', and an introduction arguing that metaphysics can and need only be justified by doing it and not by a 'meta-metaphysics', which it needs no more than physics needs metaphysics. The papers are grouped into three parts. Part I is about how the ways we are disposed to act fix both what we believe and what we use language to mean. Part II is about what there is: the reality of dispositions; what makes beliefs and sentences true; why there is only one universe; and how social groups, and other things composed of parts, are related to the people and other things that constitute them. Part III is about time, and includes discussions of twentieth century developments in the philosophy of time; why Kant was right about tense, even though he was wrong about time; why forward time travel is trivial and backward time travel impossible; and what gives time its direction.