Comments Now playing: Watch this: TVs Video Games 1:55 The dazzling LG B8 55-inch OLED TV has never been priced this low. Sarah Tew/CNET Cheeps! If you happen to live in the vicinity of White Lake, MI, come on out to the White Lake Township Library tonight at 6:30 p.m. I’ll be there talking about some of my favorite money-saving tips and tricks (including something I’ve never discussed here). Everyone who shows up gets a cool prize, and some folks will win even cooler prizes in a raffle. Hope to see you there!You know me: I’m all about the cheap TVs. I prize low prices over picture quality, especially when the latter is “good enough.”But there’s a whole other category of people (including many of my esteemed CNET colleagues) who lean the other way: They want the best possible image quality, period. Price be damned.Thankfully, it doesn’t always have to be. Today only, and while supplies last, Newegg has the LG B8 55-inch OLED 4K TV for $1,098.88 — the lowest price to date and a savings of at least $400 over other stores. (Amazon and Best Buy are both currently at around $1,600.) Forget damned; more like “damn!”See it at NeweggOne important thing to note: This deal comes from Newegg proper. If the inventory runs out, that link will still work, but you’ll likely end up seeing a slightly different price from a third-party seller. Does that matter? It might. Newegg is an authorized LG dealer. If you buy from an unauthorized dealer, LG may not honor warranty claims.The B8 is, according to CNET’s resident expert, David Katzmaier, “the best high-end value TV.” In other words, even though it was still pretty pricey when he reviewed it, overall image quality was second only to LG’s even-pricier models.It features a super-slim design, four HDMI inputs, built-in Google Assistant and all the other advanced goodies you’d expect.The B8 is super popular with owners, too. It has a 4.6-star average at Amazon and a 4.7 at Best Buy. Now, will I still argue that most folks will be just as happy with, say, a 55-inch TCL Roku TV in the $400 range? Absolutely. But if you want the best, at least here you can get it for a lot less than just a few months ago.Your thoughts? Share your voice Walmart LG Titanfall 2 deal: Just $5!Game time! Titanfall 2 was released in late 2016 to mostly glowing reviews. Price then: $60, the same as pretty much every new videogame release.For a limited time, and while supplies last, Walmart has Titanfall 2 for Xbox One for $5. Yep: Five. Bucks. And that’s for a boxed copy, not a download.See it at WalmartFear not, PS4 owners: Walmart also has Titanfall 2 for PS4 for $7. Regular price on both editions: $20. (That’s also proof-positive that you should never buy a videogame when it’s first released.)See it at WalmartShipping isn’t free unless you hit at least $35 in your shopping cart. If you don’t have more to buy, choose in-store pickup to bypass the shipping charge.This is a seriously good game deal. Read GameSpot’s Titanfall 2 review to learn more.CNET’s Cheapskate scours the web for great deals on PCs, phones, gadgets and much more. Note that CNET may get a share of revenue from the sale of the products featured on this page. Questions about the Cheapskate blog? Find the answers on our FAQ page. Find more great buys on the CNET Deals page and follow the Cheapskate on Facebook and Twitter! Tags 7 Best laptops for college students: We’ve got an affordable laptop for every student. Best live TV streaming services: Ditch your cable company but keep the live channels and DVR. The Cheapskate LG B8 is the 2018 OLED TV to buy
The physicists, Anthony Bartolotta, a graduate student at Caltech, and Sebastian Deffner, Physics Professor at the University of Maryland Baltimore County, have written a paper on the Jarzynski equality for quantum field theories that will be published in an upcoming issue of Physical Review X.The work address one of the biggest challenges in fundamental physics, which is to determine how the laws of classical thermodynamics can be extended to the quantum scale. Understanding work and heat flow at the level of subatomic particles would benefit a wide range of areas, from designing nanoscale materials to understanding the evolution of the early universe.As Bartolotta and Deffner explain in their paper, in contrast to the large leaps made in the “microscopic theories” of classical and quantum mechanics during the past century, the development of thermodynamics has been rather stagnant over that time. Although thermodynamics was originally developed to describe the relation between energy and work, the theory traditionally applies only to systems that change infinitely slowly. In 1997, physicist Christopher Jarzynski at the University of Maryland College Park introduced a way to extend thermodynamics to systems in which heat and energy transfer processes occur at any rate. The fluctuation theorems, the most prominent of which is now called the Jarzynski equality, have made it possible to understand the thermodynamics of a wider range of smaller, yet still classical, systems.”Thermodynamics is a phenomenological theory to describe the average behavior of heat and work,” Deffner told Phys.org. “Originally designed to improve big, stinky heat engines, it was not capable of describing small systems and systems that operate far from equilibrium. The Jarzynski equality dramatically broadened the scope of thermodynamics and laid the groundwork for stochastic thermodynamics, which is a new and very active branch of research.” Thermodynamic laws that describe heat and energy are being extended to the quantum scale. Source: Pexels. Photograph by Paweł Kadysz Stochastic thermodynamics deals with classical thermodynamic concepts such as work, heat, and entropy, but on the level of fluctuating trajectories of atoms and molecules. This more detailed picture is particularly important for understanding thermodynamics in small-scale systems, which is also the realm of various emerging applications.It wasn’t for another decade, however, until the Jarzynski equality and other fluctuation theorems were extended to the quantum scale, at least up to a point. In 2007, researchers determined how quantum effects modify the usual interpretation of work. However, many questions still remain and overall, the area of quantum stochastic thermodynamics is still incomplete. Against this backdrop, the results of the new study represent a significant advance.”Now, in 2018 we have taken the next big step forward,” Deffner said. “We have generalized stochastic thermodynamics to quantum field theories (QFT). In a certain sense we have extended stochastic thermodynamics to its ultimate range of validity, since QFT is designed to be the most fundamental theory in physics.”One of the keys to the achievement was to develop a completely novel graph theoretic approach, which allowed the researchers to classify and combine the Feynman diagrams used to describe particle behavior in a new way. More specifically, the approach makes it possible to precisely calculate infinite sums of all the possible permutations (or arrangements) of disconnected subdiagrams describing the particle trajectories.”The quantity we were interested in, the work, is different than the quantities usually calculated by particle theorists and thus required a different approach,” Bartolotta said.The physicists expect that the results will allow other scientists to apply the fluctuation theorems to a wide variety of problems at the forefront of physics, such as in particle physics, cosmology, and condensed matter physics. This includes studying things like quantum engines, the thermodynamic properties of graphene, and the quark gluon plasma produced in heavy ion colliders—some of the most extreme conditions found in nature.In the future, the physicists plan to generalize their approach to a wider variety of quantum field theories, which will open up even further possibilities. What is quantum in quantum thermodynamics? More information: Anthony Bartolotta and Sebastian Deffner. “Jarzynski Equality for Driven Quantum Field Theories.” Physical Review X. DOI: 10.1103/PhysRevX.8.011033. Also at arXiv:1710.00829 [cond-mat.stat-mech] Citation: Physicists extend stochastic thermodynamics deeper into quantum territory (2018, February 13) retrieved 18 August 2019 from https://phys.org/news/2018-02-physicists-stochastic-thermodynamics-deeper-quantum.html © 2018 Phys.org Journal information: Physical Review X 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. Physicists have extended one of the most prominent fluctuation theorems of classical stochastic thermodynamics, the Jarzynski equality, to quantum field theory. As quantum field theory is considered to be the most fundamental theory in physics, the results allow the knowledge of stochastic thermodynamics to be applied, for the first time, across the full range of energy and length scales. Explore further
Kolkata: Alapan Bandyopadhyay has been appointed as the new Home Secretary replacing Atri Bhattacharya who was transferred by the Election Commission of India (ECI) and Chief Secretary Malay De was looking after the Home department.Bandyopadhyay, who was in charge of the MSME & Textiles department with the additional charge of Industry, Commerce and Enterprises will also look after these departments, a notification issued by the state government said. Also Read – Rs 13,000 crore investment to provide 2 lakh jobs: MamataAccording to the order published on Monday, Atri Bhattacharya has been made the Principal Secretary of the state Tourism department. Apart from Bandyopadhyay, former Additional Chief Secretary of state Panchayats and Rural Development department Sourav Das has been made the state Election Commissioner, replacing Amarendra Nath Singh who had been appointed in 2015. As per the regulations, a person can hold the post of Election Commissioner for up to six years from the date of appointment or till 65 years of age. This month, Singh will be completing 65 years and hence, he has been replaced. Also Read – Lightning kills 8, injures 16 in stateSeveral other IAS officers’ postings have also been reshuffled on Monday. Principal Secretary of Youth Services and Sports Ajit Ranjan Bardhan has been posted as the Principal Secretary of North Bengal Development Department (NBDD) along with the additional charge of Commissioner of Jalpaiguri which was already there. He has been replaced with P B Salim who was holding the charge of Secretary in Minority Affairs. Barun Kumar Ray who was posted as Principal Secretary of NBDD has been made the Commissioner of Malda. Choten D Lama who was holding the post of Secretary in the Panchayats and Rural Development Department with additional charge of Managing Director (MD) and Chief Executive Officer (CEO) of West Bengal State Rural Livelihoods Mission (WBSRLM) has been posted as the Secretary of Backward Classes Welfare with additional charge of Secretary, Tribal Development. P Ulganathan has been made the District Magistrate of South 24-Parganas who was earlier DM Murshidabad. J P Meena, who was holding the post of DM Hooghly, replaced Ulganathan and has been made DM Murshidabad. DM South 24-Parganas Y Ratnakara Rao has been posted as DM Hooghly. Chaitali Chakraborty who was posted as DM Howrah has now been made DM North 24-Parganas. She will be replaced by Mukta Arya who was posted as DM, Bankura under the order of the Election Commission. DM North 24-Parganas Antara Acharya has been posted as Additional Secretary in the state Finance department. Chief Minister Mamata Banerjee stated that Acharya did not want to continue as DM for personal reasons. Another IAS officer, Vijay Bharti, who was holding the post of Director in MSME & Textiles has been made the DM of East Burdwan. Anurag Srivastava who was holding the charge of DM East Burdwan has now been made the Director of MSME & Textiles. Vishwanath who was posted as DM Kalimpong has been appointed as the Director of Census Operations. Lalita Lakshmi will be joining as DM Kalimpong. Umashankar S who was removed by the EC has been reinstated as DM Bankura.