The science of how light interacts with matter is called quantum electrodynamics or QED and the theory on which it is based is one of the crowning achievements of 20th century physics.
Today, it lies at the heart of an emerging technology called circuit-QED, in which photons trapped on a silicon chip are made to interact with superconducting devices called artificial atoms, which have various energy levels just like real atoms.
This is a promising tool for quantum computation. Circuit-QED devices manipulate quantum information as it is transferred from light to matter and vice versa. and the fact that this all takes place on a single chip allows unprecedented control.
But there is another way of doing this kind of quantum information processing that could be just as promising. Instead of relying on light, this uses quantum packets of sound called phonons.
Phonons are quantum vibrations that travel through the lattice that makes up materials, much in the same way that sound passes through the air. Usually they are messy and incoherent things that we see as heat and noise, things that we usually want to minimise or remove entirely.
But in recent years, physicists have begun to examine ways to create phonons intentionally, to trap them and make them coherent.
That’s given them a number of interesting ideas. Since vibration is essentially heat, this kind of control has led to various innovative cooling mechanisms on the nanoscopic scale. and since any quantum object can also carry quantum information, various physicists are thinking about ways of using phonons for quantum computation.
But before they can do that they need a way to manipulate the quantum information that phonons carry. and nobody has worked out a good way to do that.
Today, however, Rusko Ruskov and Charles Tahan at the University of Maryland say they know how to do it. Their idea is the phononic equivalent of circuit-QED. so instead of trapping a photon in a cavity and making it interact with an artificial atom, these guys want to do it with phonons: quantum phonodynamics.
Their scheme is relatively straight forward. They begin by creating a silicon membrane–a one dimensional silicon crystal about 200 nanometres thick. They engineer properties of this membrane such to create a kind of waveguide that steers phonons.
They create a phonon by zapping this membrane with a laser, which sends a quantum packet of vibration through the lattice.
The equivalent of an atom trapped in an optical cavity is single atom of boron or aluminium which distorts the lattice. It is this distortion that interacts with the photon.
However, physicists can use an external magnetic field to make the distortion take several different energy levels. This changes the way the phonon interacts in a way that processes the information it carries.
Finally, the phonon passes into another region of the silicon lattice with a band gap that has been engineered to convert the phonon into a photon, which can then be measured.
That sounds like a good plan. Physicists already know that circuit-QED is a powerful way of manipulating quantum information. so the only question is over the feasibility of the design for quantum phonodynamics.
The difficulty, of course, will be building this thing, which as Ruskov and Tahan say will be “a seminal achievement.”
Quantum information processing is crowded area with many ideas, plans and devices competing for interest and funding. Phononics has the benefit of being an emerging field with broad application in various exotic forms of computing. We’ll be watching with interest to see how it pans out.
Ref: arxiv.org/abs/1208.1776: On-Chip Quantum phonodynamics
Google Hacks. It’s tiny, open source, and just about the most useful search tool I’ve seen in years. If you’re a power searcher, grab it. Now! Windows, Mac, Linux.
Google Hacks is a compilation of carefully crafted Google searches that expose novel functionality from Google’s search and map services. For example, you can use it to view a timeline of your search results, view a map, search for music, search for books, and perform many other specific kinds of searches. You can also use this program to use google as a proxy…Please do not use this program for illegal uses.
This was the waitress’s reaction to receiving a $500 tip at at Bella Notte restaurant in Lexington, Kentucky.
LEXINGTON, Ky. — As Seth Collins finished his penne pasta at a Lexington restaurant, he called over the waitress to fulfill his brother’s dying wish.
He explained to her that his 30-year-old brother Aaron recently passed away, but that he’d left instructions in his will to leave a $500 tip for a server.
Then Seth Collins handed the waitress a stack of $20 bills.
The waitress, Chelsea Powell, took the money reluctantly and then smiled and said: “Are you kidding me?” she laughed nervously and had to cover her mouth from the excitement before giving Collins a hug.
The big tip at Bella Notte restaurant was the second $500 gratuity Seth Collins has left since Aaron Collins died on July 7. and the tips will keep coming, thanks to more than $47,000 in donations from people inspired by Aaron Collins’ dying act of charity.
The family didn’t even know he’d written a will when they found the document on his computer.
It had instructions on what to do with his motorcycle, his artwork and to “leave an awesome tip (and I don’t mean 25%. I mean $500 on a … pizza).”
“It was the last thing in his will, that we do this, and it kind of took me by surprise to see that, and for that reason it kind of left a mark on me,” Seth Collins said shortly after leaving giving the $500 tip to Powell earlier this month.
Aaron Collins’ death was unexpected. His brother said the family is still awaiting a final determination on the cause, but a preliminary coroner’s report said strangulation contributed to the death.
Collins set up a website after his brother’s death to collect money for the big tip.
He raised enough from family and friends for the first tip, and then Collins posted a video of the giveaway on YouTube. the video showing Collins telling a waitress at an Italian restaurant his brother’s story and handing over the cash, instantly went viral. since it was posted in mid-July, 2 million people have watched.
Donors from around the world, many anonymous, have flooded the site.
“When I was daydreaming I thought (if we could collect) $1,500, we’ll do it three times, that would just be unbelievable to do it three times, never thought I’d get to,” Collins said. and then after he posted the first video, “suddenly I’m thinking, ‘Oh we’re going to get to do it 20 times, 40 times.'”
Powell, who received the second big tip from Collins, works three jobs and is studying at the University of Kentucky to be a teacher.
The money will help the 21-year-old student with her bills, she said.
“I haven’t even thought about it yet, I just know I’m behind on a lot of stuff,” Powell said.
Seth Collins said the family has raised nearly enough money to do once-a-week tips for two years. So far he has given three big tips, and said he plans to travel outside Lexington for the next dinner. He has been thinking of other possibilities, like leaving big tips for coffee or pizza delivery.
Cracks in the Foundation: New Information Shows There May Be More Underground Contamination Pathways for Methane and Toxic Fracking Fluids Than Previously Thought.
It looks like every day more and more cracks are appearing in the stock oil and gas industry argument about fracking-related water contamination. For those who haven’t heard it before, the standard line goes something like this: fracking couldn’t possibly contaminate underground drinking water because, between the productive shale layer and groundwater, there are thousands of feet of solid, impermeable rock. even where contamination does occur, the claim continues, this is not due to fracking, but poor casing and cementing jobs, which are rare in practice and not worth worrying too much about.
The argument may sound nice, but there is an increasing body of evidence (and please forgive the pun here) that it’s anything but rock solid. I’ll highlight three recent findings:
New Findings on Casing and Cementing Failures – Industry-sponsored reports compiled by the Gasland folks (and explained in Josh Fox’s new short video, “the Sky is Pink”) demonstrate that not only are casing and cementing problems possible, they are an expected part of the drilling process. In certain areas, anywhere from 18% to 45% of wells experience such so-called “well integrity issues.” (For review, casings are the giant metal pipes that drillers place in the drilled wells to prevent gas and toxic frack fluid from bleeding out into underground sources of drinking water. Because there is usually space between the outside of the casing and the drilled hole or between the outside of one casing and the next, that space is filled with cement to seal potential pathways for leaks).
According to the reports, water can become contaminated when the casing itself corrodes or otherwise leaks (for example, see here), or when gaps in the cement outside the casing allow methane and other contaminants to travel up the well from shallow pockets of trapped gas, which may explain the results of a Duke University study last year linking methane contamination to gas drilling. Not all contamination is expected to happen immediately. Because drillers simply leave frack chemicals in the ground indefinitely after operations cease, casing and cementing problems may contaminate ground water anytime between now and the end of time.
New Computer Modeling Predicts Groundwater Contamination from Marcellus Drilling Within Years – even where cementing and casing work perfectly, fracking fluids could still migrate up from the shale formations themselves into groundwater. a recent peer reviewed study by hydrogeologist Tom Myers, published in last April’s edition of the journal Ground Water, predicted, using computer modeling, that natural faults and fractures in the Marcellus, exacerbated by fracking, may lead to water contamination within ten years or less. Although natural migration without fracking would occur at a much slower rate, migration of waste fluid would be likely sped up by the pressures exerted from fracking.
(For other evidence of fluid migration from underground waste disposal wells, read Abraham Lustgarten’s recent article on the problems with underground injection control (UIC) wells. Frack wells are structurally very similar to UIC wells, except that they are exempted from federal standards under the Safe Drinking Water Act).
New Evidence Confirming Possible Contaminant Pathways in Pennsylvania – A new study from Duke University has found brine (i.e. salt water), with the same composition of deep underground brines associated with the Marcellus formation, in shallow underground drinking water in northeastern PA. Although the presence of brines was not correlated with gas drilling, the fact that they are in drinking water at all shows that there are more pathways between the Marcellus and shallow underground water than previously thought. the pathways, whether from natural fractures or old abandoned wells (like the 40,000 wells drilled in NY for which no records exist), would likely also carry toxic frack water pumped into the Marcellus at high pressure by fracking activities, meaning that areas with these pathways “could be at greater risk of contamination from shale gas development.”
All of these new findings emphasize two important points: (1) that the standard industry contamination argument likely holds about as much water as a defective casing, and (2) that groundwater contamination from fracking doesn’t necessarily happen overnight – we may continue to see contamination problems from fracking in the years, decades, and centuries to come.
The Vidalia Bundle for Windows contains Tor, Vidalia (a GUI for Tor), Torbutton (a plugin for Mozilla Firefox), and Polipo (a web proxy) packaged into one bundle, with the four applications pre-configured to work together. Download either the stable or the experimental version of the Vidalia Bundle.If you have previously installed Tor, Vidalia, or Polipo you can deselect whichever components you do not need to install in the dialog shown below.After you have completed the installer, the components you selected will automatically be started for you.Tor comes configured as a client by default. It uses a built-in default configuration file, and most people won’t need to change any of the settings. Tor is now installed.After installing Tor and Polipo, you need to configure your applications to use them. the first step is to set up web browsing.you should use Tor with Firefox and Torbutton, for best safety. the bundle installs the Torbutton plugin for you. Restart your Firefox, and you’re all set: Check to see that Vidalia is running. Vidalia uses a small green onion to indicate Tor is running or a dark onion with a red “X” when Tor is not running. you can start or stop Tor by right-clicking on Vidalia’s icon in your system tray and selecting “Start” or “Stop” from the menu as shown below:Next, you should try using your browser with Tor and make sure that your IP address is being anonymized. Click on the Tor detector and see whether it thinks you’re using Tor or not. if you have a personal firewall that limits your computer’s ability to connect to itself, be sure to allow connections from your local applications to local port 8118 and port 9050. if your firewall blocks outgoing connections, punch a hole so it can connect to at least TCP ports 80 and 443.
Sony Announces Availability Of Spectral Waveform Editing Software — MADISON, Wis., July 16, 2012 /PRNewswire/ –
MADISON, Wis., July 16, 2012 /PRNewswire/ – Sony Creative Software, a leading global provider of professional editing and authoring applications, today released SpectraLayers™, the newest addition to its line of award-winning software for audio and video production. An intelligent audio editing program, SpectraLayers operates directly on waveform spectra using a wide variety of smart editing tools. Through this application, users can more accurately edit audio by graphically dividing files into discrete, user-defined layers that can be processed independently and reintegrated to achieve flawless master files.
“SpectraLayers introduces an innovative, unique workflow that redefines what can be accomplished in the professional audio editor’s suite,” said Dave Chaimson, vice president of global marketing for Sony Creative Software. “The level of editing precision and advanced capabilities SpectraLayers offers makes it an essential tool for industry professionals who demand the deepest audio analysis tools.”
SpectraLayers Offers the Following Transformational Features:
Extreme Audio Editing
- Divide audio files into discrete, user-defined layers that can be processed independently and reintegrated to achieve perfect master files.
- Remove unwanted noises and artifacts with ease while leaving surrounding audio data completely intact.
- Separate music and dialogue into individual component layers.
- Perform pitch correction on user-selected components of an audio file.
- Employ SpectraLayers in audio mastering, sound design, analysis, and forensics tasks.
- All tools are modifiable using a wide range of user-definable sensitivities and tolerances.
Extract audio into independent layers using intelligent, programmable tools:
- Area—select any audio for transfer from directly within the spectrum graph
- Frequency—track frequencies and transfer them directly to selected layers
- Harmonics—seek and select harmonics in user-defined amounts and orders.
Operate directly on waveform spectra to perform precise, creative edits:
Create sound directly in the SpectraLayers interface:
Fidelity / Flexibility
- 32-bit 96 kHz capable.
- SpectraLayers provides seamless file transfer to Sound Forge Pro and other audio editing programs.
Dual Platform Support
- SpectraLayers is available for both Mac and Windows platforms.
Price and Availability
SpectraLayers is now available for purchase worldwide, and online for immediate download at www.sonycreativesoftware.com. Manufacturer’s Suggested Retail Price (MSRP) is $399 USD.
About Sony Creative Software
Sony Creative Software inspires artistic expression with its award-winning line of products for digital video, audio, and music production, as well as industry-leading technology for DVD production and Blu-ray Disc™ authoring. Sound Forge™ Pro, ACID™ Pro, and Vegas™ Pro software have defined digital content creation for a generation of creative professionals. these signature product lines continue to advance media production by providing powerful, accessible tools. Today, there is a Sony Creative Software application for every level of expertise, including a full line of consumer software based on the company’s professional applications. In addition, Sony Creative Software produces the extensive Sony® Sound Series collection of royalty free loops and samples, Sony Pictures Sound Effects Series exclusive sound effects, and Vision Series video creation assets. Further, the company provides the industry-leading tools for enterprise-level Blu-ray Disc™ authoring: Blu-code™ encoder, Dualstream 3D™ MVC encoder, Z Depth™ 3D subtitle editing application, and Blu-print® software. the company’s customers span the globe and include professionals in the film, television, video game, and recording industries, as well as students, educators, and hobbyists. For more information about professional and consumer products, visit www.sonycreativesoftware.com.
© 2012 Sony Creative Software inc. All rights reserved. Reproduction in whole or in part without permission is prohibited. Sony, make.believe and the Sony and make.believe logos, ACID, Vegas, Sound Forge, Blu-code, Dualstream and Z Depth are trademarks of Sony. All other trademarks or trade names mentioned are the property of their respective owners.
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Crews at Pinnacle Country Club in Rogers are working hard to make sure the course looks perfect for the pros.
Friday the best of the best in the women’s golf world will tee off in the annual Walmart Northwest Arkansas Championship. the tournament is held each year at Pinnacle Country Club in Rogers, and to make sure the course looks great, and the temperatures don’t turn it brown, crews are nearly working non-stop.
The course has about 30 full time grounds crew employees working two shifts, one in the early morning another late in the afternoon. In addition 6 or 7 crew members stay at the course throughout the day.
Assistant Superintendent Chase Turpin said, “With the triple digit temperatures we are seeing it’s causing us to have to work a little more to make sure everything stays green around here.”
“Sun up to sun down.”
The work includes mowing most of the grass twice daily, but it’s the water that is key to keeping the course lush, and the players are taking notice.
LPGA professional Christina Kim said, “The golf course looks absolutely beautiful. It’s been in immaculate shape since the day we got here.”
Pro golfer Paula Creamer agreed, “The groundskeepers are great. the superintendent is doing a wonderful job. I mean it’s hard having greens that are pretty fast in this heat, and they’re doing a good job.”
And it’s praise like that that keeps Turpin and his crew going, “Makes all the hard work worth it.”
The event begins Friday morning.
Turpin did have a few tips for keeping residential yards greener. he said the best way is to make sure to water the lawn later in the day. Turpin also said that when you cut the grass, leave it a little bit longer.
Facebook keeps promising to offer a better experience on itsAndroid app, but a lot of users still find it to be buggy and slow. because of these complaints, companies like One Louder Apps, makers of TweetCaster and 1Weather, have created a Facebook alternative. a newer choice in this category is fast for Facebook. This app hosts many of the classic Facebook app features, except faster and more beautifully (Android 4.0) designed.
Step 1: Download a copy of Fast for Facebook on your Android device.
(Credit:Screenshot by Nicole Cozma/CNET)
Step 2: Log in to your Facebook account and then choose experience style you want on the app.There’s an option called fast for Performance, which loads lower-quality pictures, and fast for Quality, which uses more bandwidth by not compressing images.
Fast for Facebook with gray theme.
(Credit:Screenshot by Nicole Cozma/CNET)
Step 3: Select a theme you like.Tap the upper left-hand corner menu button and choose Settings. You’ll see an option for Theme. the neat thing about this app is that you can choose the gray or white backgrounds, but you can also use one of your own pictures.
Fast for Facebook white theme.
(Credit:Screenshot by Nicole Cozma/CNET)
That’s all you need to do. and if you’re wondering about all of the features offered by fast for Facebook, here’s a list from the developer, Team2Soft:
Comment, share and like
Real-time Home feeds with cached images (low bandwidth utilization!)
Share contents from other android apps
Access to news, status, photos, links, videos, …
Search friends, people, pages and everything else
Write on friends’ wall
Access to Groups and Pages
Read your private messages
Add and take Photos
Continuous photo upload trough camera
Add locations (check-in)
Widget and quick link
View Albums and Galleries
Optional Security pin against snoopy
Background themes (gray, app theme or photo loaded from your Device)
High security level: Facebook takes care of your user and password, we don’t store anything!
You’ll notice that the app looks very different from the Facebook you’re accustomed to. This might be good or bad depending on your taste, but if you like Android 4.0 design style, it’s sure to please. One major missing feature in this app is push notifications. however, since it’s in beta, there’s still a chance this option will make it into a future release. What’s your Facebook app of choice on Android?
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Hey there! in this article I will let you know about some awesome computer tips and tricks. If you want to learn something new and exciting then please keep reading 2) Multiple user login in yahoo Massager without any software or patch: You can login to to yahoo messenger with multiple user ID without any software or patch. You just have to do a simple Task. First click start menu and then click run, then type regedit and then press enter. A box will appear now from the box navigate HKEY_CURRENT_USER , then from the list select SOFTWARE , then from the software select YAHOO , then from Yahoo select PAGER , then from Pager select TEST. Now right click on the TEST and then click Dword value. in the right side you will notice a new folder appears, Rename it as Plural. Then double click it then select decimal and give the value 1 in the value box and click OK. That’s it now try to login in yahoo messenger with multiple ID. (you will find this tricks as the most useful trick )3) Watch Star wars Movie in your PC : Do you know you can watch Star wars Text movie from your computer. To watch it click the start button then click Run . Type telnet in run. You will find DOS black screen. in the black screen of Dos , type o and click enter and again typetowel.blinkenlights.nl and click enter . That’s it, the text movie will begin, wait for few seconds and enjoy it . :)5.Make an invisible Folder: in my previous Hubs i have told you how to make a folder without any names. now i am going to show you how to make a complete invisible folder to your desktop. You can surprise people by doing this trick. at first you have to make the folder without any name. so first the folder then right click and click rename , remove the name (by backspace or delete button) , hold in that position. Be sure your numlock is on, if not then make it on. now press and hold ALT button and type 0160 (remember you must have to hold ALT button and typw the code from the num pad must, it won’t appear in the screen) . when you complete typing the code, release ALT and press enter . you will see a folder without no name. at first try it will be difficult for you to acquire the whole tricks but eventually you will get it right. so try , apology if i failed to make you understand .now the second part is easy, you just have to make the folder invisible. To do that select the folder, right click go to properties , click customize , then click Change icon and then you will find many icons available, slowly search for a icon that doesn’t show, i mean an invisible icon totally blank, select and then apply .Thats it, the invisible folder is ready, You can also make it invisible without removing the name. then only name will appear without the folder6. On-Screen Keyboard: Ohk this is the most simple trick, in fact it is not a trick. It’s for those who yet hasn’t heard about it. Sometimes you may need to type something urgently but if you found that your keyboard is not working what you will do? You simple just click Start, then clickall programs , then accessories , then accessibility and then click on-screen key board . thats it, you can type through the mouse only.7.Create Shutdown,log off, or hibernate shortcut key: Sometimes we get too lazy and we need some easier way to do our work. Lets create shortcut key to shutdown our computers. at first right click on your desktop free space then click new and select shortcut. A box will appear and type the following word exactly shutdown -r -t 0 . then click ok. A new shortcut folder will be created and you can shut down your computer immediately . For log off or stand by copy the following :Restart: shutdown -r -t 0Logoff: shutdown -l -t 0Hibernate: rundll32.exe PowrProf.dll, SetSuspendState HibernateI hope all of you will enjoy this tricks. I recommend you to read this article as well. – Funny computer tricks
One of the hot topics in computer science is the study of unconventional forms of computation.
This is motivated by two lines of thought. The first is theoretical–ordinary computers are hugely energy inefficient–some eight orders of magnitude worse than is theoretically possible. The second is practical–Nature has evolved many much more efficient forms of computation for specific tasks such as pattern recognition.
Clearly, we ought to be able to do much better–hence the interest in different ways of doing things.
Various groups have tried computing with exotic substances such as chemicals like hot ice and even with a single celled organism called a slime mould.
Today, we look at one of the more curious variations on this theme–a computer that exploits the swarming behaviour of soldier crabs.
First, a little background on the theory behind this idea. Back in the early 80s, a couple of computer scientists–Ed Fredkin and Tommaso Toffoli–studied how it might be possible to build a computer out of billiard balls.
The idea is that a channel would carry information encoded in the form of the presence or absence of billiard balls . this information is processed through gates in which the billiard balls either collide and emerge in a direction that is the result of the ballistics of the collision, or don;t collide and emerge with the same velocities.
Now Yukio-Pegio Gunji from Kobe University in Japan and a couple of pals have built what is essentially billiard ball computer using soldier crabs. “We demonstrate that swarms of soldier crabs can implement logical gates when placed in a geometrically constrained environment,” they say.
These creatures seem to be uniquely suited for this form of information processing . They live under the sand in tidal lagoons and emerge at low tide in swarms of hundreds of thousands.
What’s interesting about the crabs is that they appear to demonstrate two distinct forms of behaviour. When in the middle of a swarm, they simply follow whoever is nearby. But when they find themselves on on the edge of a swarm, they change.
Suddenly, they become aggressive leaders and charge off into the watery distance with their swarm in tow, until by some accident of turbulence they find themselves inside the swarm again.
This turns out to be hugely robust behaviour that can be easily controlled. When placed next to a wall, a leader will always follow the wall in a direction that can be controlled by shadowing the swarm from above to mimic to the presence of the predatory birds that eat the crabs.
Under these conditions, a swarm of crabs will follow a wall like a rolling billiard ball.
So what happens when two “crab balls” collide? According to Gunji and co’s experiments, the balls merge and continue in a direction that is the sum of their velocities.
What’s more, the behaviour is remarkably robust to noise, largely because the crab’s individuals behaviours generates noise that is indistinguishable from external noise. These creatures have evolved to cope with noise.
That immediately suggested a potential application in computing, say Gunji and co. if the balls of crabs behave like billiard balls, it should be straightforward to build a pattern of channels that act like a logic gate.
And that’s exactly what Gunji and co have done. These guys first simulated the behaviour of a soldier crab computer in special patterns of channels. then they built one in their lab to test the idea with real crabs.
To be fair, the results were mixed. while Gunji and co found they could build a decent OR gate using soldier crabs, their AND-gate was much less reliable.
However, it’s early days and they say it may be possible to produce better results by making conditions inside the computer more crab-friendly. (No crabs were harmed in the making of their computer, say Gunji and co.)
So there you have it–a computer in which the information carriers are swarming balls of soldier crabs.
Not a sentence you expect to read every day. But it surely cannot be long before we all have one of these on our desktops.
Ref: arxiv.org/abs/1204.1749: Robust Soldier Crab Ball Gate