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Mike Witt replied to the topic Non-locality IV: The Hardy State in the forum The Non-Locality Question 1 year, 4 months ago
Sorry about that. I just put a note in that they’ll show up later (after the meeting).
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Wayne Dam replied to the topic Non-locality IV: The Hardy State in the forum The Non-Locality Question 1 year, 4 months ago
Seems the video did not embed properly.
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Mike Witt started the topic Non-locality IV: The Hardy State in the forum The Non-Locality Question 1 year, 4 months ago
Don’t forget to click on the “Subscribe” link above if you want to be notified of new information on this meeting.
Sunday May 21st. 3:00pm Pacific, 4:00pm Denver
Zoom Link:
https://us06web.zoom.us/j/89404330590?pwd=VTBRTjRLNzRDV1h4aEtuUFpFWXBaUT09The Hardy State
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Mike Witt replied to the topic Non-locality III: What is locality and nonlocality? in the forum The Non-Locality Question 1 year, 4 months ago
Not at all. At least not in the way that you mean. I think it would be really great if you wanted to do that.
Let me know if you want me to set up a meeting (or series of meetings) for it.
But let’s move this discussion to the general forum. It’s applicable far beyond this topic! -
Wayne Dam replied to the topic Non-locality III: What is locality and nonlocality? in the forum The Non-Locality Question 1 year, 4 months ago
@mike I was wondering how much vector spaces have been covered in the past. In particular the topics of:
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Linear combinations
Linear independence
Linear subspaces
Linear span
Basis and dimension
Direct (Cartesian) product and direct sum
General definition of a vector space as an Abelian group over a field -
John Scott replied to the topic Non-locality III: What is locality and nonlocality? in the forum The Non-Locality Question 1 year, 4 months ago
I won’t make this one. I’ll look at the video afterwards.
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Mike Witt replied to the topic GHZ and Reality in the forum The Non-Locality Question 1 year, 4 months ago
Video posted above.
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John Scott started the topic GHZ and Reality in the forum The Non-Locality Question 1 year, 5 months ago
I’ll revisit the GHZ experiment and how it contradicts common sense.
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Mike Witt replied to the topic Non-locality II: GHZ Measurements in the forum The Non-Locality Question 1 year, 5 months ago
Video posted above.
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Mike Witt replied to the topic Non-locality I: Introduction in the forum The Non-Locality Question 1 year, 5 months ago
Video posted up at the top.
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Mike Witt replied to the topic Non-locality I: Introduction in the forum The Non-Locality Question 1 year, 5 months ago
OK, yeah, good idea. I don’t know how many people are seeing this discussion — but help me remember to say that in the meeting early on.
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Wayne Dam replied to the topic Non-locality I: Introduction in the forum The Non-Locality Question 1 year, 5 months ago
If by the physics definition you mean what I called the mathematical definition, then if the joint state can’t be factored, the systems are entangled. I really believe it’s as simple as that.
Yes. Just defining it that way so everyone is on the same page is what I was thinking.
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Mike Witt replied to the topic Non-locality I: Introduction in the forum The Non-Locality Question 1 year, 5 months ago
Well, for the simple situations we’re talking about non-factorability is enough. There are a number of competing measures of the “degree of entanglement.” I don’t think there is a clearly acknowledged “winner” for more than two entangled systems. But this is a very interesting area of exploration. I’m definitely not up to speed on what’s current.…[Read more]
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Wayne Dam replied to the topic Non-locality I: Introduction in the forum The Non-Locality Question 1 year, 5 months ago
Just for the more immediate purposes of the talks I was thinking of (1). So when you are writing equations and diagrams on the board we know what you mean right then. I found Tai-Danae Bradley’s explanation of the degree of entanglement measured by the Schmidt rank of a state via SVD really helpful. But that’s just me.
Points 2 and 3 are very int…[Read more]
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Wayne Dam replied to the topic Non-locality I: Introduction in the forum The Non-Locality Question 1 year, 5 months ago
Just for the more immediate purposes of the talks I was thinking of (1). So when you are writing equations and diagrams on the board we know what you mean right then. I found Tai-Danae Bradley’s explanation of the degree of entanglement measured by the Schmidt rank of a state via SVD really helpful. But that’s just me.
Points 2 and 3 are very…[Read more]
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Mike Witt replied to the topic Non-locality I: Introduction in the forum The Non-Locality Question 1 year, 5 months ago
Good question. Let me talk about it here briefly. (In my opinion) “what entanglement actually is” could potentially refer to three different things:
(1) What it is mathematically. Basically: If we have the state of (say) two systems, and if that state can’t be factored into two individual states, then those two systems are (mathematically)…[Read more]
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Wayne Dam replied to the topic Non-locality I: Introduction in the forum The Non-Locality Question 1 year, 5 months ago
Hi Mike,
Just going through your notes you discuss entanglement. Are you going to go over what entanglement actually is or is this something we need to understand well on our own before the talk?
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Mike Witt replied to the topic "Notifications" doesn't update in the forum Technical Support & Website Feedback 1 year, 5 months ago
Hmm … you shouldn’t have to actually restart the browser. There should be some way to refresh it (refresh, reload, or something like that — depending on which browser). On the version of Firefox I’m using, there’s an icon that looks like an arrow going in a circle. You can click on that to do a “partial” refresh and shift-click on it for a…[Read more]
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Joel Preston Smith replied to the topic "Notifications" doesn't update in the forum Technical Support & Website Feedback 1 year, 5 months ago
Shutting down the browser updates it. I’ll follow your instructions to delete messages. Thank you.
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Mike Witt replied to the topic "Notifications" doesn't update in the forum Technical Support & Website Feedback 1 year, 5 months ago
Hmm … When I look at your account I see 19. It might be a matter of refreshing your browser? Not sure. Personally I think those notifications are kind of a pain. They never completely go away until you delete them. I generally go to the “notifications” tab on my profile every once in a while and select them all by clicking the checkbox at the…[Read more]
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