Category Archives: physics

qm computing summer 2017 update

hi all, seem to have reached a momentary lull in my own schedule and also the QM computing news that typically runneth over. maybe a moment of breath to clear out the queue. years ago it was cutting edge to talk about it but now it looks like a lot of the media is attuned and into covering the race[k] esp with inroads by big corporations (Google, IBM, Microsoft, Intel) into the area. Intel seems a relative newcomer but did finally show up on the radar.[a10]

can recall some of the earliest QM computing books came out around late 1990s eg 1997 or so, so now its been almost exactly 2 decades. here is a technology with immense promise but also immense engineering challenge.

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3rd black hole merger, gravitational waves, etc

❗ 💡 ⭐ hi all, the 3rd black hole merger capture by LIGO was announced within the last week. a huge deal![f] have been tracking this area. its a “ringing/ rippling” excitement in physics and cosmology, its like christmas and even conservative scientists are talking in profound terms. a new detector is going online soon in europe (named Virgo in Pisa, Italy)[f11] and there are predictions that up to about 1 event per day may be observable after all the machines are finetuned!

☯️ this all coincides with a lot of theoretical commotion at the same time. ofc as long observed here, experiment and theory are like yang+yin, each energeizes and contains elements of the other, so to speak. its well/ widely acknowledged that GR+QM unification is a/ the big/ key open question of physics and there are a lot of new ideas circulating, and anything to do with gravity is nearly by defn highly coupled with GR.[b] this also ties in with new theories about big bang/ expansion.[e] theres some big contention going on.

am esp interested in Verlindes ideas about gravity as an “emergent phenomenon” that possibly is a solution to the “dark matter” problem.[c] have been promoting this rough conceptual idea myself for many years and feel it ties in naturally with pilot wave hydrodynamics and soliton dynamics (latest big writeup on that only ~½ yr ago). in short, an image to ponder: a wave-particle seems to continuously emanate waves out to infinity. what effect do those have collectively? is there some emergent property there?

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universe as a simulation hypothesis, holographic principle, recent developments/ notes/ minisurvey

hi all. have blogged before here (admittedly, enthusiastically, even ebulliently) on the “digital physics” concept, an enamoring idea (for some!). recently within last few weeks and last year there seems to be substantial new interest and developments even in “semimainstream” physics, and now even the mainstream media is in a semi-lather over close topics. (skeptics will ofc argue the word “semimainstream” sounds something like “semipregnant”!) its hard to keep up! there are many different angles of povs, events, personalities, etc… this post attempts to collect and summarize some of this and bang it all into a semicoherent story (as much as such a thing is possible). some old but evocative buzz/ magic words thrown around about internet expansion into multiple industries come to mind: consolodation/ convergence…

to start, these ideas are now going under the headline of the “holographic universe/ principle”[a2] or “simulated universe/ hypothesis”[a1] concepts. they are interconnected in major and/ or subtle ways.

mentioned Aaronsons recent blog[i3] on subj citing Hossenfelder [i1][i2] in a recent near-throwaway comment in the SE physics chat room “hbar”[a5] to a new accomplished user BenNiehoff (phd KU Leuven working on string theory with 9 papers on arxiv!). hes met a lot of famous physicists at conferences personally eg Susskind, Zee, Green, Schwarz, and Witten and other famous theorists. am trying to recruit him for a guest session in our elite and popular series, but thats another story!

laid out some of the basic concepts/ “pros” of the simulation hypothesis ideas incl/ eg longtime endorsement/ driven pursuit by nobel prize alumnus ‘t Hooft, which thought were not generally very controversial, but the room denizens/ regulars reacted quite adversely-bordering-on-negatively, with some really stinging retorts! guess those big fat shiny nobel prizes and the proverbial “trip to stockholm” just aint what they used to be! Ben expressed his disinclination and looks like they all smelled blood in the water & went in for the kill! 😮 o_O 😦

Ah, as usual you have no actual argument to make, I should’ve known. —ACuriousMind [a6]

vzn; do you have any mainstream views? —John Rennie [a7]

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Veritasium launches soliton dynamics into 1M eternal viral living legend!

➡ 💡 ❗ ⭐ ⭐ ⭐ 😮 😎 a youtube blogger “Veritasium” specializing in physics has over 300M views collectively on his videos.[a3] he has a “Patreon” page where he earns about $2.5K per video. at nearly one per week, hes apparently making close to $150K per year off of his youtube videos from that revenue stream alone[a4]—talk about getting paid to do what you love aka “dream job”. he has his own wikipedia page.[a2] (which makes me wonder, is there anyone comparable out there doing CS type videos? this really eyepoppingly shows theres a market for this stuff…)

veritasium just covered the silicone oil droplet experiments of bush and the video is currently at over 1M views.[a1] so its a totally certifiably viral video (whatever that means, just made it up!). to get this kind of exposure for this obscure physics factoid/ phenomenon is utterly phenomenal. he does it in an introductory way yet includes very advanced info eg re copenhagen interpretation, DeBroglie-Bohm pilot wave theory etc. this will only increase the momentum of this particular research area. so am commemorating this momentous event/ achievement with the FIRST embedded video ever on this blog. hurry, click now!

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Daniel Sank, Phd/ Google quantum computing lab, stackexchange physics guest speaker Aug 12 2016

physics_chat.png➡ ⭐ ⭐ ⭐ hi all. it is with great pleasure to introduce this next guest and chat series and welcome a larger audience. Daniel Sank, Phd working at Google Martinis quantum computing lab[2] is our 3rd guest speaker[1] in a guest chat series hosted by the physics stackexchange site/ chat room.[13] thanks to moderator David Z, Phd[18] for the suggestion of the idea, coordination and graciously agreeing to hosting in his already well-attended biweekly chat sessions.[11]

we have now hosted two prior events in series with great success with Samuel Lereah, Masters in physics[4][5], and yuggib, Phd math working in mathematical physics, thanks so much to these groundbreaking/ enthusiastic guest speakers for their particularly inspired/ dedicated participation.[5][6]

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