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Spontaneous Symmetry Breaking in Quantum Systems:Emergence or Reduction?
Emergence More is Different Symmetry Breaking Earman's Principle
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2016/6/14
Beginning with Anderson (1972), spontaneous symmetry breaking (SSB) in infinite quantum systems is often put forward as an example of (asymptotic) emergence in physics, since in theory no finite syste...
Philosophical Aspects of Spontaneous Symmetry Breaking
Spontaneous symmetry breaking c-star algebras GNS theorem infinite spin chain algebraic quantum field theory heuristic quantum field theory
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2016/5/31
This essay expounds the algebraic framework describing general physical theories, within which the phenomenon of spontaneous symmetry breaking (SSB) makes its appearance in infinite quantum systems. T...
Breaking the light speed barrier
Special relativity superluminal motion tachyons elvisebrions solitons
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2016/5/31
As it is well known, classical special relativity allows the existence of three different kinds of particles: bradyons, luxons and tachyons. Bradyons have non-zero mass and hence always travel slower ...
Emergence, Singularities, and Symmetry Breaking
Emergence Symmetry Breaking Renormalization Group Condensed Matter Explanation
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2009/11/18
This paper looks at emergence in physical theories and argues that an appropriate way to understand so-called ``emergent protectorates'' is via the explanatory apparatus of the renormalization group. ...
Laws, Symmetry, and Symmetry Breaking; Invariance, Conservation Principles, and Objectivity
symmetry invariance symmetry breaking
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2008/4/22
Given its importance in modern physics, philosophers of science have paid surprisingly little attention to the subject of symmetries and invariances, and they have largely neglected the subtopic of sy...
Spontaneous Symmetry Breaking (II): Variations in Complex Models
symmetry spontaneous breaking of symmetry
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2008/4/21
This paper, part II of a two-part project, continues to explore the meaning of spontaneous symmetry breaking (SSB) by applying and expanding the general notion we obtained in part I to some more compl...
Spontaneous Symmetry Breaking and Chance
symmetry ergodicity perturbation Curie's principle
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2008/4/21
In this paper I explore the nature of spontaneous symmetry breaking in connection with a cluster of interrelated concepts such as Curie's symmetry principle, chance, and stability.
The Meaning of Spontaneous Symmetry Breaking (I): From a simple classical model
spontaneous symmetry breaking symmetry breaking symmetry principle
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2008/4/21
This paper, part I of a two-part project, aims at answering the simple question 'what is spontaneous symmetry breaking?' by analyzing from a philosophical perspective a simple classical model. Related...
On the meaning of symmetry breaking
symmetry breaking spontaneous symmetry breaking
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2008/4/15
This is the review paper for the section III ("Symmetry breaking") of the volume "Symmetries in physics: philosophical reflections", Cambridge University Press, 2003,
edited by Katherine A. Brading a...
Critical Phenomena and Breaking Drops: Infinite Idealizations in Physics
Thermodynamic Limit Scaling Theory Reduction
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2008/4/11
Thermodynamics and Statistical Mechanics are related to one another through the so-called "thermodynamic limit'' in which, roughly speaking the number of particles becomes infinite. At critical points...