Quantum Bayesian Networks

August 27, 2015

Chilean Investor Recalibrates the Scales for Investments in Quantum Computing Startups

Filed under: Uncategorized — rrtucci @ 4:30 am

According to this news article, Chilean investor Alberto Chang Rajii has just invested a whopping $50M over 3 years in the startup company Cambridge Quantum Computing (that’s Cambridge UK, not Cambridge USA).

Here is a beautifully written Spanish article about Mr. Chang Rajii

por Ignacio Ossa (Revista Cosas, Viernes, 10 julio, 2015)

I doubt the dude Alberto reads this blog. He has better stuff to read like Pablo Neruda, Isabel Allende, etc. Nevertheless, my dog does read this blog, and I’ve taught him Spanish, so here is a message that will be read at least by my dog:

Querido Alberto,

Mi empresa artiste-qb.net escribe software y patentes para los ordenadores cuánticos. Por tanto, estaremos en competencia con tu empresa Cambridge QC. Sin embargo, te doy la bienvenida a nuestro campo con los brazos abiertos y con toda sinceridad. Mi madre era latina y yo me crié en Puerto Rico así que siento un vínculo muy fuerte con todos los latinoamericanos. Espero que tu ejemplo ayude a aumentar el interés, el amor, y la pasión por la computación cuántica en toda la América Latina.

August 20, 2015

Artiste-qb.net is the Next Palantir

Filed under: Uncategorized — rrtucci @ 7:50 am

In the book trilogy The Lord of the Rings (LOTR), a Palantir (plural Palantiri) is a “seeing stone” (similar to a divining crystal ball) that can be used to communicate from itself to another seeing stone. It can also be used to see what is happening far away. But all this comes at a price: a Palantir can sometimes harm and corrupt its users.

The first palantiri looked like this.
They had very few features (just a circle and a vee, very plain if you ask me). Furthermore, they were not very powerful. With them, you might be able to see across 15 miles in good weather, or through 3 medium-thick stone walls, at most. Not ideal for Sauron and Aragorn to communicate. If you are an old geezer, and you still insist in buying one of these older palantir models, you can find them here.

By now, most creatures in Middle Earth have traded their old palantir for a smart model, a quantum Palantir or qPalantir for short. A qPalantir looks like this (the dragon fly model)
and it contains inside a quantum computer that can do teleportation, etc. Now that’s a Palantir!

My ship reached land today (Young Diagram algo works)

Filed under: Uncategorized — rrtucci @ 4:06 am

A brief note to remind myself that yesterday, after many, many false starts, I finally succeed with my Young diagram algorithm. I checked it with Maxima (a symbolic manipulation program) for numerous cases, so I’m pretty sure that I haven’t made any mistakes. It’s a very general algorithm too. Hurray! I can’t say any more about it here because if I did, the idea would surely be stolen. Next I will write a patent and paper for it. One more arrow in my company’s patent quiver.

This past week, my cofounder H.D. and I updated the pitch deck for our Canadian company artiste-qb.net. I’m very pleased with our new pitch deck. Startups have to be pitching all the time. We are planning to pitch to some rich Chinese investors next. The recent news that Alibaba is investing in quantum computing seems to indicate that China is very interested in QC and awash with cash right now.

August 18, 2015

Quantum Information meets Quantum Matter

Filed under: Uncategorized — rrtucci @ 10:16 pm
Hmm, quantum matter, So what is non-quantum matter?

Hmm, quantum matter.

So what is non-quantum matter?

What used to be called “strongly correlated quantum (many body) systems” has in the past decade been rebranded to “quantum matter”, a term that reminds me of the terms “black coal” or “canine dog”. The term “quantum matter” is so new that it still doesn’t have a Wikipedia entry.

In 1951, John C. Slater (inventor of “Slater determinants”) published a famous book called

“The Quantum Theory of Matter”

In 2015, a brilliant advance in the physics of word ordering has replaced that brand by

“The Theory of Quantum Matter”.

Nowadays, “The Theory of Quantum Matter” is quite the craze, and we now have Istituti of academics dedicated entirely to “Quantum Matter” as, for instance, the CTQM (Center for Theory of Quantum Matter) at the Univ of Colorado, Boulder.

“The Theory of Quantum Matter” promises to unify Matter and Information by unifying Quantum Information, String Theory and Condensed Matter Physics. Poor Ed Witten must be shaking in his boots (either from fear or laughter).

Recently, a group of Caltech students published in arXiv a preliminary version of their book entitled “Quantum Information Meets Quantum Matter” They described their book in a recent post in the blog Quantum Frontiers.

By the way, the blogs “Quantum Frontiers”, by Caltech, and “Shetl Optimized” by Scott Aaronson, are purportedly about quantum computation (QC) and quantum information (QI). In their blogrolls, they link to many blogs that have nothing to do with those topics and link to nearly inactive blogs like Quantum Pontiff, but they would never stoop down to link to this my 7 year old blog that is quite active and is dedicated exclusively to QI and QC. Just another example of the dirty tactics used by vain academics to crush the spirit of anybody whom they perceive as a threat to their divine royal rights.

An interesting aspect, at least to me, of the study of “quantum matter” is that it uses CMI (pronounced “see me”, Conditional Mutual Information) to study quantum entanglement in strongly correlated quantum systems. Let me make two simple points about CMI

(1)In general, CMI measures a mixture of both quantum correlations (aka, entanglement) and classical correlations (between two parties).

(2)If one takes a special limit of CMI, one obtains a quantity that measures quantum correlations exclusively. This quantity is now called squashed entanglement.

It turns out that I was the first person to point out that there is a connection between CMI and quantum entanglement and also the first person to define squashed entanglement. You can fact check this assertion from the references of the Wikipedia article on squashed entanglement. I did it all thanks to deep insights that I gained from the study of classical and quantum Bayesian Networks. People that use tensor networks instead of quantum Bayesian networks converged on squashed entanglement several years after I did, after looking at my papers. That is one of the many reasons why I believe that quantum Bayesian networks are better than tensor networks for doing quantum information theory. The software company artiste-qb.net that I work for is heavily involved in classical and quantum Bayesian Networks.


quantum bayesian networks: rikki-tikki-tavi the mongoose

quantum tensor networks: drunken cobra

Who wins?

August 15, 2015

Hitler is Informed about the Many Worlds Interpretation of Quantum Mechanics

Filed under: Uncategorized — rrtucci @ 7:44 am

Yesterday, I wasted a few hours of my life watching YouTube videos. That damn YouTube is more addictive than crack cocaine. At the end of that YouTube binge, I realized that I needed to make my own Hitler parody (there are thousands of them on YouTube) or else I would die. Luckily, there are ample directions on the internet on how to make one. The idea is to add funny, profane English subtitles to a scene from the German movie The Downfall. I chose the scene where Hitler is notified that Fegelein has deserted.

This Hitler parody is dedicated to all Many Worlds advocates, especially to Sean Carroll, Max Tegmark and David Deutsch. I apologize for the profanity, but it’s Hitler speaking, not me.

P.S. Sorry, I mispelled deterministic. Determinsitic sounds like a portmanteau of deterministic and parasitic.

August 13, 2015

Will Robots Be Issued A License to Kill Some Humans?

Filed under: Uncategorized — rrtucci @ 5:35 pm

Good pitch for a movie (or for a reality TV show?)

Seconds after we hit The Singularity in 2039, the governments of all nations issued a general edict that all quantum AI’s had to obey Isaac Asimov’s Three Laws of Robotics. But then, a few months after The Singularity, an antisocial MIT student added to the code of his quantum computer AI an extra clause at the end of the first law: “unless that human be a Muslim”.

If you can’t beat them, join them.

singularity Ray Kurzweil, prophet of doom? http://www.kurzweilai.netlicense-to-kill

August 12, 2015

Message to Science Journalists: Tu Puzzi!

Filed under: Uncategorized — rrtucci @ 5:39 am

Recently, Lubos Motl wrote a blog post lamenting bad science reporting. IMHO, science journalists sometimes do a decent job, but 90% of the time they don’t. Some types of quantum computing articles that irk me:

Clueless Article: The journalist has no science degree, just a BA in art history or something like that, and yet he writes an article about a highly technical scientific subject like string theory. Often, he doesn’t ask any expert in the subject to proof-read his article, or, if he does, he ignores the advice.

Outright Wrong Article: The article praises a scientific paper that is completely wrong.

Hagiography: Article makes no attempt to explain any physics. Instead, the article describes a physicist who is supposedly the smartest person in the world, and who is exceptionally talented not only at physics, but at everything else too. No mention is made of the fact that said physicist is very selfish and narcissistic. The profession of physicist is not exactly an altrustic profession. Personally, I admire much more a medical doctor or nurse treating Ebola patients in Africa.

Cookie Cutter Article: The article follows a standard formula. One de rigueur paragraph explains the difference between a bit and a qubit. Also de rigueur is a quote by an MIT or Caltech colleague of Smith, saying how Smith’s brilliant paper was “a bolt from the blue”, and caught everyone by surprise.

Pseudo Authority Article: The journalist first learned about the subject of the article a few days ago, but he is absolutely certain that he already understands the subject better than people who have spent decades studying it.

Parroting Lies Article: The article simply parrots a dishonest press release by a University.

Snake Oil Advertisement Article: The article praises effusively an idea or technology (like quantum cryptography) without ever mentioning any of its numerous drawbacks.

Biased, One Sided, Favoritism Article: Article only mentions one person’s views or work. It omits to mention closely related and equally laudable work by others.

P.S. One pop-sci article format that often pleases me is the Q&A format: asking a scientist some good questions. This format is somewhat limited in scope, so there is a need for other formats, but I find it very entertaining—perhaps because I strongly believe in the value of allowing a person to hoist himself by his own petard :)

August 6, 2015

Advice to Young Persons— Go Quantum

Filed under: Uncategorized — rrtucci @ 7:14 am

I believe that the future of computers is quantum. Maybe not the whole future of computers, but a fascinating and important part of it.

I also believe that the future of quantum physics is quantum computers, because QCs will test quantum mechanics by stretching it to its breaking point. Quantum Mechanics is now almost a century old, and it has explained for us, quantitatively, thousands of phenomena. QCs will bring quantum mechanics to the masses like ham radio brought electronics and PCs brought computer programming to the masses.

QCs are a new physics frontier, a new West, and it’s a frontier that promises a wondrous device at the end of the journey, unlike, for example, string theory, which doesn’t promise any new tabletop devices. (However, connections between quantum computation and its offshoot, quantum information theory, on the one hand, and string theory on the other, have been and continue to be discovered.)

The following phrase became popular in the USA in the mid 1800’s: “Go West young man, and grow up with the country”

Nowadays, that great advice might be updated to: “Go Quantum, Young Person”

(notice that the shadows in this photo indicate that the astronaut is traveling towards the West):

The following YouTube Video shows a famous scene from the 1967 film “The Graduate”. In the scene, a shockingly young Dustin Hoffman, freshly graduated from college, is given the following advise by a much older man, “One word…Plastics.”

Nowadays, that old man should instead be saying “One word…Quantum”

(Or else, “One URL…no, not twitter.com or facebook.com, you little twerp, how about “www.artiste-qb.net”)

(Homer Simpson: Hmm?, Why you little…)

August 4, 2015

Russian Quantum Computer Scientist (a postdoc) Fired From Dutch University For …Spying for Russia

Filed under: Uncategorized — rrtucci @ 7:37 pm

Check out:

Russian computer scientist fired from Dutch university for spying” by Martin Enserink ( Science AAAS, July 29, 2015)


A Russian computer scientist was fired from his job at a university in the Netherlands last year after Dutch intelligence officers warned he was spying for his home country. Ivan Agafonov, a postdoc at the Eindhoven University of Technology (TUE) who was working on quantum computing, lost his work visa around the same time and left the Netherlands.

What I would like to know is: Why was an employee at a

    university lab

(not a government or industrial lab) being monitored by German and Dutch spy agencies? If a Russian postdoc working at a Dutch university lab communicates scientific facts acquired at that lab to another Russian scientist, is that considered a crime (“endangering national security”) in the Netherlands?

August 3, 2015

Soon: Jack Ma Quantum Computer

Filed under: Uncategorized — rrtucci @ 3:59 am

Check out

Aliyun and Chinese Academy of Sciences Sign MoU for Quantum Computing Laboratory (press release, Market Watch, July 3, 2015)


Aliyun, Alibaba Group’s (BABA, -2.03%) cloud computing subsidiary, and the Chinese Academy of Sciences (CAS) today announced that they have signed a memorandum of understanding (MoU) in Shanghai to co-found the Chinese Academy of Sciences – Alibaba Quantum Computing Laboratory (the Laboratory).

American Government’s official response to this news:

“The USA considers China’s recent quantum computing activities to be extremely unhelpful. The US State Dept. has decided to make a proportionate response to those activities. We are hereby ordering all of MIT’s top computer scientists to point their prodigious cannons at China. Here is a photo to show that we are serious”.

scott-aaronson-cannonWhile on the subject of cannons, let me mention that MIT is a loose cannon itself. A few days after this photo was taken, MIT started negotiations with Alibaba to ship a dozen or more of MIT’s brightest grad students to China, where they will be offered permanent jobs with typical starting salaries of $300K/yr (Google salaries for engineers start typically at $200K/yr, but it’s easier to convince someone to live in balmy San Fran than polluted Beijing).(*)

In case you didn’t know, Alibaba is China’s version of Amazon.com/eBay/PayPal combined, except (3 billion people/ 300 million people)= 10 times bigger.

In the short term (first year or so), I don’t think this news poses much of a threat to American QC supremacy/hegemony. However, I am sure that the American defense establishment considers Alibaba’s investment in QC a very serious “national security threat” in the long term. Why? Because all companies in China, especially the biggest ones, are ultimately under tight state control. The Chinese government might like to promulgate the fantasy that Alibaba is Jack Ma’s company and that Jack Ma is worth upwards of $30 billion, but we know better. I don’t doubt that the guy is fabulously wealthy, but I suspect that the truth is that Alibaba is just a front for the Chinese government, and this news means that the Chinese government has now given carte blanche to its QC scientists. I expect that they will soon go on a hiring binge, hiring all foreign QC scientists whom they can convince to move to China, and, of course, hiring a large number of Chinese scientists too.

If they are smart, they will try to create semi-autonomous QC research hubs in multiple locations, including some in foreign countries. Moving everyone to a single location, and organizing their social structure as a monarchy, with a king for life,  like Lazaridis has done at Waterloo, Canada, has been shown not to work very well. Indeed, a leading authority in the QC field recently awarded Lazaridis’ QC institute a grade of F in QC hardware development.

Which reminds me, I work for a QC software company headquartered in Toronto, Canada, called Artiste QB net Inc.. We have tons of software and 11 QC software patents. Our US patents do not apply in China, but if Alibaba wants to eventually do QC commerce in America, it might find access to our ever expanding portfolio of software patents very useful. We need all the investors we can get. As an added bonus, our company’s name starts with the letter A (this means it’s a lucky name, just like Alibaba and Aliyun).

A plug for my Russian friends: If I were a QC job recruiter working for Alibaba, before hiring American scientists, I would first consider hiring Russian scientists. Due to the currently depressed oil prices and Ukraine-related sanctions on Russia, many Russians are strapped for cash right now. Russian scientists, which are among the best in the world, are probably more abundant, cheaper to hire, and more willing to relocate to China than their American counterparts.

(*)Just kidding. MIT would never in a million years consider doing something so downright unpatriotic as that!

July 15, 2015

Photo Album of Quantum Computing Royal Family

Filed under: Uncategorized — rrtucci @ 8:47 pm

I’ve been working hard lately, but can’t talk yet about my results. Instead,  here is an attempt at humor:

American scientific communities are organized around a social structure highly analogous to a monarchy. For example, take the quantum computing community. It has Kings, dauphins, courtesans, aristocrats, commoners and a bourgeoisie, much like the ancien régime of pre-revolutionary France.

Here is a recent photo of King Jean Louis XIV Preskill, absolute monarch of the kingdom of Caltech-IQIM (Caltech Institut Quantique for Inert Minds)


The NSF courtesans recently awarded King Jean a 40 pound solid gold medallion depicting his Sun King emblem. The medallion was awarded to King Jean for IQIM’s huge success in building a quantum computer. This imperial trinket is currently affixed to the back of King Jean’s throne:


(Medal giving celebrations are quite common in modern scientific societies. Science Academic Aristocrats are always pinning medals on each other and congratulating themselves on how smart and handsome they are.)

The quantum computing royal family has its own dauphin (next in line for the throne). His name is Scott Aaronson, Le Dauphin. He is currently putting the finishing touches on a book that he wrote. Here is the book’s front cover, with a portrait of Le Dauphin in it:



The book has been chosen—3 years ahead of time— by Jennifer Foolette as the best Physics!!  book of 2018.

Recently, King Jean showed to Le Dauphin the following photo of his university’s endowment:


King Jean then said to the Dauphin

“You see that pipe there, mon enfant. It doesn’t lead to the Paris sewers. At the other end of that pipe are Caltech/MIT trained government funding agency courtesans that will start the flow of gold at my slightest whim. Some day, mon enfant, all this gold will be yours, plus carefully manicured Versailles style campuses”.

To which the Dauphin replied:

“Merci, mon cher papa. If need be, I will spill the last drop of my blue royal blood to preserve the divine rights of the scientific aristocracy and monarchy. I will also try my best to embarrass the D-Wave bourgeoisie, and I will press lèse-majesté charges against Monsieur Tucci-Marat for his inflammatory, revolutionary views”

King Jean rules by divine right the American quantum computing community. The Canadian quantum computing community has its own monarch, King Raymond Laflamme XI, king for life of IQC (Institut pour Quantum Crétins). Here is a photo of King Raymond dressed in proper British-style royal garb:


June 26, 2015

Congratulations to LGBT Community!!

Filed under: Uncategorized — rrtucci @ 8:23 pm

Today was a joyful, historic day for gay rights in America and universal human rights in general. The US Supreme Court ruled in favor of same sex marriage for all states. Hurray! Live and let live. Antonin Scalia, tu puzzi!


Gay Bayesian: Alan Turing used Bayesian techniques to break the German Uboat codes, thus contributing significantly to bringing WW2 to an end.

Coming soon: The Gay Quantum Computer

June 22, 2015

How the Conservatives Saved Physics, by Lubos Motl

Filed under: Uncategorized — rrtucci @ 2:52 am

A friend of mine that works in the publishing industry has informed me that Lubos Motl is currently putting the finishing touches on a book that he has written entitled: “How the Conservatives Saved Physics”. Two possible covers have been leaked to the press. Here they are:


Lubos Motl believes that quantum computers are allowed by the laws of physics, and that they will be built someday. He considers them an interesting engineering problem, but not as fundamental as his beloved String Theory. He has a very low opinion of what he calls anti-quantum zealots, such as Many-World and QBism advocates. I don’t agree with Lubos about many things, but I agree with him on everything I’ve said so far.

Note that QBism and Quantum Bayesian Networks are very different animals. QB nets are just a graphical way of representing quantum density matrices. They are not a new interpretation of quantum mechanics like QBism claims to be.

June 18, 2015

The BibMatic LaTex Package For Automatic Bibliography Generation

Filed under: Uncategorized — rrtucci @ 7:47 pm
BibMatic Screenshot

BibMatic Screenshot

Compiling a bibliography for a scientific research paper can be a long, tedious task if done by hand. I recently encountered a free computer application called BibMatic that makes this task really easy.

BibMatic was designed with the budding and not so budding academic in mind. Some of its features were conceived to address specifically the needs of academics.

You can find BibMatic at the LaTex Repository, CTAN.

Next, I will describe it and give a screen-shot of its user interface.

Suppose that you are an academic writing a paper for ArXiv. It used to be that the bibliography (bib) of your paper was supposed to list predominantly those papers that were directly relevant or overlapped significantly with your paper. That vestigial purpose of bibs is but a faint memory today. Nowadays, the real purpose of your bib is to list only the papers of your best friends (that includes you) and of the people that may in the future offer you a job. Overlapping papers be hanged.

Citing papers not written by you that overlap significantly with your paper is not recommended by most quantum computing thesis advisers. According to them, it is better not to mention those papers at all. Later on, if your omission comes to the public’s attention, you can claim that you didn’t know about that prior work when you wrote your paper, so you should get as much credit as prior workers. Either that, or you should get ALL the credit. You can achieve the latter effect by getting your friends to cite your paper and not the prior ones, so the prior work is slowly forgotten. Your friends can rest assured that you will extend the same courtesy to them if the opportunity arises at a future date.

BibMatic inputs:

  • Select Your LaTex File:
    Press this button and a new window will open allowing you to select from your computer drive the LaTex file for which you want to compile a bib.
  • Brown List:
    Insert into this list the names of people you desperately want to brown-nose by citing their work, even if their work has nothing to do with your paper. BibMatic will include in the bib all papers ever written by these people.
  • Black List:
    Insert into this list the names of people you hate, or the academic community frowns upon, and you consider too low on the totem pole to be capable of hurting you.
  • Overlap Lower Bound(%):
    Insert in here a number X between 1 and 100. Only papers with overlap greater than X will be included in the bib, unless, of course, the author is in the Brown List or Black List.
  • Compile My Bib:
    When you press this button, BibMatic will first generate from your LaTex paper a dictionary of words and phrases with their relative frequencies in your paper. Then BibMatic will interface with Google Scholar and the arXiv search engine to compile a bib for you.

BibMatic output

  • Bib:
    A list of papers that overlap with your paper more than X% or were written by the authors in your Brown List, but were not written by the authors in your Black List. Next to each paper is a number indicating the percentage overlap with your paper . A handy Delete button next to each citation allows you to delete from the bib those papers that are too close to yours for comfort and those that you are plagiarizing.

June 1, 2015

Dutch-Microsoft Team Moving in for the Quantum Kill, Russians too scared to fight back

Filed under: Uncategorized — rrtucci @ 7:17 pm

Check out the following news article:

Dutch invest €135m in developing a quantum computer (DutchNews.nl, June 1, 2015)

If the race to build a Kitaev quantum computer resembles a game of soccer, then Team Netherlands, newly equipped with 135 million euros, is now moving in for the kill of Team Russia.

Team Netherlands routinely trounces Team Russia in classical soccer. Will Team Russia be steamrolled by the Dutch team, those orange pests, in quantum soccer too?

The Dutch team is partly owned by Microsoft, so USA’s hands are directing this operation under the table. Will imperialistic USA, through its Dutch proxies, humiliate Russia AGAIN?

Will Team Russia regroup and mount a valiant defense, or will it flee in panic? Those tulip wielding, swamp dwelling, pot smoking pests in wooden shoes, can they kill a Russian bear? Find out on our next episode of Game of Q-Thrones…

Russian version of arXiv coming soon.

Previous episodes:

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