Mind the (Quantum) Context (October 8, 2012 ) - Theosophy.Net2024-03-28T22:57:30Zhttps://theosophy.net/forum/topics/mind-the-quantum-context-october-8-2012?groupUrl=science&feed=yes&xn_auth=noI'm thinking on this one.
Rea…tag:theosophy.net,2012-10-19:3055387:Comment:1171012012-10-19T17:16:58.337ZJohnhttps://theosophy.net/profile/JohnEMead
<p>I'm thinking on this one.</p>
<p>Really good question! It definitely has similarities.</p>
<p>John</p>
<p>p.s. I edited this post because the one story I told was done from memory. I need the article to reference. Better just to find that APS News article.</p>
<p>I'm thinking on this one.</p>
<p>Really good question! It definitely has similarities.</p>
<p>John</p>
<p>p.s. I edited this post because the one story I told was done from memory. I need the article to reference. Better just to find that APS News article.</p> Thank You John. It is explain…tag:theosophy.net,2012-10-19:3055387:Comment:1173302012-10-19T01:51:39.005ZCapt. Anand Kumarhttps://theosophy.net/profile/CaptAnandKumar
<p>Thank You John. It is explained quite well. </p>
<p>Do you see any parallels between SIC and the four states of consciousness as described in the Mandukya Upanishad? The fourth one being the SIC.</p>
<p>Thank You John. It is explained quite well. </p>
<p>Do you see any parallels between SIC and the four states of consciousness as described in the Mandukya Upanishad? The fourth one being the SIC.</p> Note: The example dealing wit…tag:theosophy.net,2012-10-17:3055387:Comment:1171512012-10-17T15:56:17.915ZJohnhttps://theosophy.net/profile/JohnEMead
<p>Note: The example dealing with Macroscopic objects are extreme and used for illustrative purpose.</p>
<p>Bell's Theorem requires specifically prepared objects that are usually entangled in some way. That would be State Contextuality, State-Independent Contextuality means that QM actually requires contextuality independent of the state the item is in.</p>
<p>I wanted to clarify that so that people do not think it will happen to macroscopic objects. Decoherence effects come into play.. that…</p>
<p>Note: The example dealing with Macroscopic objects are extreme and used for illustrative purpose.</p>
<p>Bell's Theorem requires specifically prepared objects that are usually entangled in some way. That would be State Contextuality, State-Independent Contextuality means that QM actually requires contextuality independent of the state the item is in.</p>
<p>I wanted to clarify that so that people do not think it will happen to macroscopic objects. Decoherence effects come into play.. that allows common objects to behave more classically.</p>
<p>John</p>
<p></p> An intuitive feature of class…tag:theosophy.net,2012-10-17:3055387:Comment:1173242012-10-17T05:09:52.566ZJohnhttps://theosophy.net/profile/JohnEMead
<p>An intuitive feature of classical models (classical Physics/mechanics) is non-contextuality of measurements:<br></br> <br></br>i.e. the property that any physical state has a value independent of other measurements being carried out at the same time. <br></br><br></br>In the example the "state" is a envelope with a card and picture on it. <br></br>The envelope, card and picture are the State (item of reality). Compatible measurements are things that are not directly done to the card in the envelope. Opening a…</p>
<p>An intuitive feature of classical models (classical Physics/mechanics) is non-contextuality of measurements:<br/> <br/>i.e. the property that any physical state has a value independent of other measurements being carried out at the same time. <br/><br/>In the example the "state" is a envelope with a card and picture on it. <br/>The envelope, card and picture are the State (item of reality). Compatible measurements are things that are not directly done to the card in the envelope. Opening a window, observing the color of the envelope, holding the envelope up to see if you can "see" what is inside etc.-- these are compatible measurements. These leave the card state alone, and the historical context of those other measurements leaves the card/envelope unchanged. <br/><br/>However, a theorem ( KS - derived by Kochen, Specker) shows that non-contextuality is in conflict with quantum mechanics. QM requires any state-independence to be affected by contextual measurements. This is weird. if you put something somewhere, go to a room and come back... it may have changed. Ask a question about it, it may change.<br/><br/>State-Independent contextuality (SIC) is the weird property that compatible measurements have a Context. what did you do before the measurement, the order of things you do before measurement, etc. affects the State independently. This applies to ANY quantum state -- not just special states (like entangled items etc.<br/><br/>So, state contextuality has been known for special states prepared in special ways. However State-Independent means ANY quantum state is affected by the context of what happened/measured before you measure the state you are investigating.. Open the envelope and see a picture... might have been of a picture of Blavatsky but is now a picture of Anand Kumar!). The history of the items before you open it matter. Open window 10 cm. then see Joe Fulton. it is highly a No-Go theorem that says physical reality as we know it does not work that way. We live in a world inherently contextual, rather than classic Physics of non-contextual reality.<br/><br/></p>
<p>I hope that helps. this is a good question. I hope I answered it in a way that makes sense. Let me know..</p>
<p>John</p> Very interesting article. Tha…tag:theosophy.net,2012-10-17:3055387:Comment:1173212012-10-17T00:44:24.347ZCapt. Anand Kumarhttps://theosophy.net/profile/CaptAnandKumar
<p>Very interesting article. Thank You John.</p>
<p><br/>I could not figure out State Independent Contextuality (SIC), though. Could you please explain it to a layperson?</p>
<p>Very interesting article. Thank You John.</p>
<p><br/>I could not figure out State Independent Contextuality (SIC), though. Could you please explain it to a layperson?</p>