free will
http://plus.maths.org/content/category/tags/free-will
enFree, from top to bottom?
http://plus.maths.org/content/free-will-top-bottm
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Marianne Freiberger </div>
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<p>A traditional view of science holds that every system — including ourselves — is no more than the sum of its parts. To understand it, all you have to do is take it apart and see what's happening to the smallest constituents. But the mathematician and cosmologist George Ellis disagrees. He believes that complexity can arise from simple components and physical effects can have non-physical causes, opening a door for our free will to make a difference in a physical world.</p>
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<div class="rightimage" style="width: 200px;"><img src="http://plus.maths.org/content/sites/plus.maths.org/files/articles/2012/Ellis/georgeellis.jpg" alt="George Ellis" width="200" height="300" /><p>George Ellis</p><p><a href="http://plus.maths.org/content/free-will-top-bottm" target="_blank">read more</a></p>http://plus.maths.org/content/free-will-top-bottm#commentsFrontiers of physicsmathematical realitycomplexityemergent behaviourfree willquantum physicstop down causationThu, 12 Jan 2012 12:24:58 +0000mf3445627 at http://plus.maths.org/contentFreedom and physics
http://plus.maths.org/content/freedom-and-physics
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Marianne Freiberger </div>
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<p>Most of us think that we have the capacity to act freely. Our sense of morality, our legal system, our whole culture is based on the idea that there is such a thing as free will. It's embarrassing then that classical physics seems to tell a different story. And what does quantum theory have to say about free will?</p>
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<p><em>In the latest poll of our <a href="http://plus.maths.org/content/science-fiction-science-fact-reports-frontiers-physics">Science fiction, science fact project</a> you told us that you wanted to know whether there is such a thing as free will. This is one of the articles we've produced in response. Click <a href="http://plus.maths.org/content/science-fiction-science-fact-there-free-will">here</a> to see more articles on free will.</em> </p><p><a href="http://plus.maths.org/content/freedom-and-physics" target="_blank">read more</a></p>http://plus.maths.org/content/freedom-and-physics#commentsFrontiers of physicsmathematical realityfree willNewtonquantum mechanicsquantum uncertaintyrandomnessThu, 12 Jan 2012 11:19:01 +0000mf3445628 at http://plus.maths.org/contentScience fiction, science fact: Is there free will?
http://plus.maths.org/content/science-fiction-science-fact-there-free-will
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<p>Is there such a thing as free will? In everyday life we all assume that there is: it's up to you whether you cheat in your tax return, and if you're caught, well then you deserve punishment. But when you look at it from a physics view point free will becomes a little tricky. Here's a collection of articles exploring free will.</p>
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<div class="rightimage" style="width: 200px;"><img src="http://plus.maths.org/content/sites/plus.maths.org/files/packages/2011/fqxi/fqxi_logo.jpg" width="200" height="42" alt="FQXi logo"/></div><p>Is there such a thing as free will? In the latest online poll of our <em><a href="http://plus.maths.org/content/science-fiction-science-fact-reports-frontiers-physics">Science fiction, science fact</a></em> project you told us that you'd like an answer to this question.<p><a href="http://plus.maths.org/content/science-fiction-science-fact-there-free-will" target="_blank">read more</a></p>http://plus.maths.org/content/science-fiction-science-fact-there-free-will#commentsFrontiers of physicsfree willThu, 12 Jan 2012 10:36:22 +0000mf3445638 at http://plus.maths.org/contentJohn Conway - discovering free will (part II)
http://plus.maths.org/content/john-conway-discovering-free-will-part-ii
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Rachel Thomas </div>
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<p>In this, the second part of our interview, John Conway explains how the Kochen-Specker Theorem from 1965 not only seemed to explain the EPR Paradox, it also provided the first hint of Conway and Kochen's Free Will Theorem.</p>
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In the <a href="http://plus.maths.org/content/john-conway-discovering-free-will-part-i">previous article</a>, John Conway lead us through the early days of quantum physics and explained why the non-predictive nature of this theory worried some physicists, in particular, Albert Einstein. Einstein believed that physical properties, such as the position and momentum of quantum particles, have definite, fixed values whether those properties have been measured or not.<p><a href="http://plus.maths.org/content/john-conway-discovering-free-will-part-ii" target="_blank">read more</a></p>http://plus.maths.org/content/john-conway-discovering-free-will-part-ii#commentsFrontiers of physicsmathematical realityEPR paradoxfree willquantum physicsTue, 27 Dec 2011 13:55:02 +0000Rachel5588 at http://plus.maths.org/contentJohn Conway – discovering free will (part I)
http://plus.maths.org/content/john-conway-discovering-free-will-part-i
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Rachel Thomas </div>
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<p>On August 19, 2004, John Conway was standing with his friend Simon Kochen at the blackboard in Kochen’s office in Princeton. They had been trying to understand a thought experiment involving quantum physics and relativity. What they discovered, and how they described it, created one of the most controversial theorems of their careers: The Free Will Theorem.</p>
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On August 19, 2004, John Conway was standing with his friend Simon Kochen at the blackboard in Kochen’s office in Princeton. They had been trying to understand how a particular, odd, detail of the world worked. Using a thought experiment involving quantum particles they were investigating the interaction of three important consequences from quantum physics and relativity.
</p><p><a href="http://plus.maths.org/content/john-conway-discovering-free-will-part-i" target="_blank">read more</a></p>http://plus.maths.org/content/john-conway-discovering-free-will-part-i#commentsFrontiers of physicsmathematical realityEPR paradoxfree willquantum physicsTue, 27 Dec 2011 12:26:33 +0000Rachel5587 at http://plus.maths.org/contentJohn Conway – discovering free will (part III)
http://plus.maths.org/content/john-conway-discovering-free-will-part-iii
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Rachel Thomas </div>
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<p>In this, the third part of our interview, John Conway continues to explain the Free Will Theorem and how it has changed his perception of the Universe.</p>
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<p><em>In <a href="http://plus.maths.org/content/john-conway-discovering-free-will-part-i">part I</a> of this interview we saw that the non-predictive nature of quantum physics worried many physicists, including Einstein. He developed the EPR Paradox with his colleagues Podolsky and Rosen, a thought experiment that seemed to show that quantum physics could not be a complete description of physical reality.<p><a href="http://plus.maths.org/content/john-conway-discovering-free-will-part-iii" target="_blank">read more</a></p>http://plus.maths.org/content/john-conway-discovering-free-will-part-iii#commentsFrontiers of physicsmathematical realityEPR paradoxfree willKochen-Specker theoremquantum physicsTue, 27 Dec 2011 12:09:24 +0000Rachel5621 at http://plus.maths.org/content