Recommended Google+ Hangouts

Since last 3 months I had the pleasure to participate in Google+ Hangouts organised by Q+. Q+ are series of online seminars on quantum information and quantum foundations that use Google+ hangouts. Hangouts are held every month and are organized by Daniel Burgarth and Matthew Leifer.

Every hangout features a different speaker, past speaker being Scott Aaronson, Vlatko Vedral etc. who speak on specific topics. The best thing about this is that you get to be aware of some of the cutting edge researches presented by well known scientists and there is a question-answer time after the seminar is presented. In hangout only 10 persons can participate interactively but the rest can watch the hangout live streamed in real time on Youtube. Google+ Hangouts also allow screen sharing, which means you are also presented with slides of the talk! And ofcourse the Hangout is recorded and after the it ends hangout becomes normal Youtube video.

Q+ publishes the information about the upcoming talk on its Google+ page. Prospective participants are highly urged to attend in group thus have a seat reserved for your group. But even if you do not happen to be part of group, after the groups are done with it is first-come first-serve reservation :). The Hangout timing happens to be very flexible (14:00 to 15:00 BST, 6.30 PM to 7.30 PM IST), though it might change in future. Q+ already has a impressive list of speakers in queue and if you happen to wish for someone specific to talk on a subject you can easily suggest it here.

LINKS : Facebook, Twitter, Website, Google+

Here is the video of a previous talk :

29th May 2012: Joe Fitzsimons ~ Universal blind quantum computation

There was also another hangout held by CERN People. I unfortunetly missed the hangout but here is the video :

This hangout was hosted by Ian Sample with physicists Josh Bendavid & Phil Harris joining from CERN, and physicist James Monk, Science Museum curator Alison Boyle, and filmmaker Liz Mermin from Google’s offices in London. It certainly is interesting and a makes me very much regret having missed it. They plan to hold more such hangouts in near future.

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Online Simulation for Quantum Science [Part 1]

Online Variant Double Path Simulation

by JEFFREY ZHI J. ZHENGJIE-AO ZHUJIE WAN

Journal Article: Hakin9 Extra 07/2012

ABSTRACT

It is a top intelligent challenge to explain quantum behaviors consistently using experimental evidences. Wave-particle paradoxes forced this type of formal discussions and historical Bohr-Einstein debates without a common solution from 1900s and still an open question in modern quantum foundation. Using advanced variant logic and measurement construction, it is feasible to identify complex quantum interactions under multiple/conditional probability into a series of symmetry/anti-symmetry and synchronous/asynchronous conditions. In addition to theoretical analysis and explorations, an online prototype focus on simulation of single function has established to illustrate controllable combinations among possible parameters to generate interactive results with a total of 7680 configurations. Main principles and architectures of the simulation prototype discussed and key and modules are illustrated. Sample interactive results from two polarized/separated paths and either double path for particles or double path for waves are organized into four groups of results for both single functions and global matrix representations.

ResearchGate : https://www.researchgate.net/literature.LiteratureDetails.html?pubid=229424771&dbw=true

Bloch Sphere Simulation
by Stephen Shary and Dr. Marc Cahay

This simulator is designed to be an easy to run tool that allows users to view the state of a qubit through the Bloch Sphere. The simulator provides documentation on the actions of the simple operators and also provides some time evolution simulation through magnetic fields. The simulator can record and playback multiple operations and provide the ability to view the effect of a series of operators.

Link : http://www.ece.uc.edu/~mcahay/blochsphere/index.html

Disgusting news paper article!

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The article is titled ‘Father of Computer’ appeared in the newpaper ‘Lokmat’; a local Marathi language paper on 15th June 2012 on supplement 6 written by Vijay Bhatkar. Firstly the article reports rather accurately, a rarity these days, the life of Alan Turing including his homosexuality and thus death.

I truly give points to Bhatkar for his daring of writing quite openly regarding the taboo subjects (in India atleast), specially about his (Turing’s) sexual orientation. In the last paragraph, he gave a short and accurate note regarding the Turing Award. But after that the article says, and I quote,

Today this award is being awared to me. I have been invited for the award ceremony, I feel honored….

After going through this article, I immediately sought the contact details for the editor of the newspaper. I secured the e-mail contact but as expected it is non-functional and all the mails remain undelivered. I awaited for 2 week in the hope that Bhatkar would correct the article but all for naught.

While I have no problem with people writing faux articles for fame, Ankit Fadia coming at forth of my mind, I would have expected more courtesy from a person like Bhatkar. The disturbing thing being that majority of the people are starting to believe it, including to my disgust; some of the Professor of colleges around here and no matter what proof  happens to be provided, they are unwilling to admit their fault in believing a mere piece of article without checking it out, over anything.

Interesting physics paper

Quantum superpositions of the speed of light by Sabine Hossenfelder

While it has often been proposed that, fundamentally, Lorentz-invariance is not respected in a quantum theory of gravity, it has been difficult to reconcile deviations from Lorentz-invariance with quantum field theory. The most commonly used mechanisms either break Lorentz-invariance explicitly or deform it at high energies. However, the former option is very tightly constrained by experiment already, the latter generically leads to problems with locality. We show here that there exists a third way to integrate deviations from Lorentz-invariance into quantum field theory that circumvents the problems of the other approaches. The way this is achieved is an extension of the standard model in which photons can have different speeds without singling out a preferred restframe, but only as long as they are in a quantum superposition. Once a measurement has been made, observables are subject to the laws of special relativity, and the process of measurement introduces a preferred frame. The speed of light can take on different values, both superluminal and subluminal (with respect to the usual value of the speed of light), without the need for Lorentz-invariance violating operators and without tachyons. We briefly discuss the relation to deformations of special relativity and phenomenological consequences.