(PhysOrg.com) — When most of us think of entanglement, our minds jump immediately to quantum communication. “Entanglement has become very well known and useful in quantum communication,” Robert Prevedel tells PhysOrg.com. Prevedel, a scientist at the Institute for Quantum Computing at the University of Waterloo in Ontario, Canada, believes that entanglement can be used in classical communication as well. Copyright 2010 PhysOrg.com. All rights reserved. This material may not be published, broadcast, rewritten or redistributed in whole or part without the express written permission of PhysOrg.com. More information: R. Prevedel, Y. Lu, W. Matthews, R. Kaltenbaek, and K.J. Resch, “Entanglement-Enhanced Classical Communication Over a Noisy Classical Channel,” Physical Review Letters (2011). Available online: link.aps.org/doi/10.1103/PhysRevLett.106.110505 Citation: Entanglement can help in classical communication (2011, March 30) retrieved 18 August 2019 from https://phys.org/news/2011-03-entanglement-classical.html This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only. “We have found that in certain situations you can use entanglement to transmit classical information with higher success when using classical channels that are noisy than you could do without.” says Prevedel. “This is a novel use for entanglement which seems to have been overlooked until recently.”A team of scientists at Waterloo, including Prevedel, Lu, Matthews, Kaltenbaek and Resch, demonstrated that that it is possible to benefit from entanglement in some classical communication channels. Their work can be found in Physical Review Letters: “Entanglement-Enhanced Classical Communication Over a Noisy Classical Channel.”“One of the reasons that entanglement hasn’t been thought to be useful for classical communication is that it has been shown to not increase the capacity of a classical channel, which is the ultimate maximum rate of reliable communication” Prevedel explains. “What entanglement can do, though, is reduce the error probability when sending a message with a fixed number of uses of a noisy classical channel.”Prevedel says that the protocol used is fairly simple. “Our demonstration included only two entangled particles and a straightforward classical channel. Entangled photons show nonclassical correlations,. Whenever I do a measurement on one of the photons, I will get a similar result for the same measurement performed on the other photon.”“Sometimes a classical communication channel gets jumbled,” Prevedel explains. “We wanted to see if entanglement could be used to more successfully send information across such a noisy channel. With our simple protocol, and by using entanglement, we found that you can improve the success probability from 83% to 90%. That’s fairly significant.”For now, the protocol only works on a very particular type of channel. “The situation we started with is very specific,” Prevedel points out. “We looked for the channel that would offer us the largest increase in success probability possible. Also, we knew that using entanglement in this manner won’t work with every type of classical communication channel.”So far, the work done by the Waterloo team doesn’t offer immediate applications for communications. “Our results are more important from a fundamental point of view,” Prevedel says. “From a fundamental point of view, this is big news.”Going forward, Prevedel hopes that he and his colleagues can learn more about the benefits that entanglement can have for classical communication. “We want to figure out which classical channels will benefit from it [entanglement], and which will not. We also want to see if there is a way to generalize our findings.” Additionally, the group is hoping that they can adapt what they learned to multi-party conversations. “It might be possible to find scenarios in which entanglement could help in three party or four party conversations – moving beyond two party communication.”Overall, though, Prevedel and his colleagues are excited about the new prospects for combining classical communication with entanglement. “We have shown that entanglement can help in classical communication, a situation where people thought it was useless. Hopefully, our work will spark interest in this research direction, and we can begin to see some applications in the future.” Explore further Too much entanglement can render quantum computers useless
Spending time with partners has topped New Year’s resolutions list, reveals a survey. A survey was conducted by matchmaking portal shaadi.com to understand the mindset of unmarried Indians and their views involving relationships and marriage. The online poll received over 16,500 responses from unmarried men and women, aged between 25 and 34 years.When men and women were asked if they believe in making New Year’s resolutions, 42.5 per cent said “Yes, if it involves spending more time with your partner”, 33.9 per cent said “No, resolutions never work out”. Also Read – ‘Playing Jojo was emotionally exhausting’While 23.6 per cent said “Maybe, if it’s about getting rid of bad habits”. When 7,547 women were asked if they would support their partner’s New Year’s resolution, 59.4 per cent said “Yes”, 13.1 per cent said “No” and 27.5 per cent said “It depends”. When the participating women were asked about their own resolutions, 38.1 per cent said: “Would try to spend less time on social media and more time with their partner”, while 28.5 per cent said: “Would plan to travel more often with their partner”, followed by 33.4 per cent who said: “Would try to exercise regularly and follow a healthy lifestyle”. Also Read – Leslie doing new comedy special with NetflixWhen 9,025 Indian men were asked if they would support their partner’s New Year’s resolution, 64.1 percent said: “Yes”, 17.3 per cent said: “No” and 18.6 per cent said “It depends”.When these men were asked about their own resolutions, 42.7 per cent said: “Would try to maintain a balance between their partner and favourite sports”, followed by 36.4 per cent who said: “Would try not to binge sleep on holidays and actively make plans with their partner”. While 20.9 per cent said: “Would learn to cook new dishes”. “This is an interesting insight into how there is a shift in the way people are thinking. The latest trend shows that people are not taking decisions on their own, but as a couple,” said Shaadi.com CEO Gourav Rakshit.
Monday, May 13, 2019 << Previous PostNext Post >> Share Travelweek Group Posted by TORONTO — With Sunwing’s Luxury for Less sale, clients can take advantage of vacation savings for bookings now until May 17.With this latest sale Sunwing is offering savings of up to $1,500 per couple at top resorts across the Caribbean, Mexico and Central America.One property taking part in the deal is also one of Mexico’s newest resorts: Royalton Suites Cancun Resort and Spa. Families can enjoy amenities and activities plus accommodations that sleep families of five or more. Located on the white-sand shores of Cancun, this brand-new resort features a kids’ club and teen lounge.Riu Palace Tropic Bay in Negril is another family-friendly resort included in the Luxury for Less sale, featuring a new RiuLand kids club.For travellers seeking an adults-only getaway, Riu Republica in Punta Cana is another option. This resort, located on a white-sand beach, offers unlimited access to the sole adults only water park in the Caribbean. Amenities include unlimited reservation free-dining, in-room liquor dispensers, and free WiFi. Sunwing’s ‘Luxury for Less’ sale on now through May 17 Tags: Sunwing