Talk:Dissipative system

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Contents 1 Open systems 2 critique 3 Dissipation 4 Suggestion 5 Quantum dissipative systems 6 WikiProject class rating

[edit] Open systems

On 9 Decmebr 2005, User:Seberia Eagle asked on the article page:

A dissipative system is defined for an open system, while a map on a set is clearly not an open system, at least formally. So What is the inherent connection between these two definitins of dissipative systems? (For a definition of disspative systems for open systems, see Dissipative dynamical systems by Jan C. Willems. For that in Mathematics, see the article wandering sets or Chapter 6 in The Ergodic Theory of Discrete Groups by Peter J. Nicholls.)

Dunno. linas 17:37, 9 December 2005 (UTC)

[edit] critique

I am referring to the line: "A dissipative system is characterized by the spontaneous appearance of symmetry breaking (anisotropy) and..." In particular to the equivalent use of "symmetry breaking" in general and "anisotropy". To my knowledge, the term isotropy refers to spatial symmetry in particular, not to symmetry in general.

What did the author intend to say?

[edit] Dissipation

I made some notes in the talk page on "dissipation", referring to open and closed systems. I think that section should be ditched as a separate entry and all discussion on dissipation, conservation and open and closed systems should go here. Thoughts? Jas 11:54, 12 January 2007 (UTC)

[edit] Suggestion

I suggest that this article be merged with the article on "Quantum Open Systems".

[edit] Quantum dissipative systems

The section "quantum dissipative systems" in this article seems to be a brief and possibly slightly confused summary of issues surrounding the arrow of time, rather than to do with dissipative structures per se. Worse, it promotes a particular approach to the problem of time's arrow (namely the idea that irreversibility arises due to interaction with an environment in thermal equilibrium) when others can be taken (the Brussels school's 'nonlinear' approach, the MaxEnt approach, probably many others) and the issue is contentious.

I think the section should be replaced by a link to the arrow of time article, with a brief sentence explaining why it is relevant.

80.47.108.193 19:24, 9 June 2007 (UTC)

[edit] WikiProject class rating

This article was automatically assessed because at least one WikiProject had rated the article as start, and the rating on other projects was brought up to start class. BetacommandBot 09:48, 10 November 2007 (UTC)