Senate appropriators on Thursday restored $322 million in funding for military grocery stores while marking up the fiscal 2016 defense spending bill, matching a similar move by their House counterparts.The Obama administration’s budget request recommended the cut — out of a total allocation of $1.4 billion for commissaries — which would have been accommodated by reducing days of operation and operating hours, laying off staff and closing some stores, reported Military Times. Sen. Barbara Mikulski (Md.), the committee’s top Democrat, criticized the proposal as a shortsighted idea from “Pentagon bean splicers” and said those savings should not come at the expense of military families.“The president is wrong,” she said. “[Defense Secretary] Ash Carter is wrong on this. These are false savings,” Mikulski said.The defense authorization bill now on the Senate floor endorsed the commissary cuts called for in the administration’s budget request, however, setting up a possible showdown before next year’s defense budget is completed.The Senate Appropriations Committee voted 27-3 to pass the $575.9 billion defense spending bill and set up a battle next week when Majority Leader Mitch McConnell (R-Ky.) tries to bring the bill to the floor. Democrats are planning to block the legislation from advancing. Dan Cohen AUTHOR
Actress Kasturi Shankar has responded to a fight between the fans of Ajith and Vijay on Twitter by asking the two stars to intervene to put an end to the issue. She has urged the fans to use their energy towards positive activities, thus indicating not to waste their time on trending negative topics on Twitter.”I repeat- Thalapathy Vijay Fans and Thala Ajith fans are able to make any hashtag trend nationwide. If they can use that energy & effort for positive activities, whole state will bless you & your favourite star. I appeal to popular icons to direct their fans into social service. [sic]” she wrote on Twitter.A section of fans trolled Kasturi for her comment. Nonetheless, her followers, in large, welcomed her statement. It got over 194 ‘retweets’ and over 1400 ‘likes’ by the time this story went for publishing.Time and again, Vijay and Ajith’s fans have locked horns over trivial issues to project their icon as the biggest star of today on social media sites. In the latest development, the fans of Thala apparently trended the topic on Twitter with a hash tag #RIPactorVijay on Monday, 29 July. It became a hot topic of debate with many people condemning those behind it.Notably, cricketer Ashwin Ravichandran wrote, “There was an asteroid that missed hitting our planet a few days ago, irregular monsoons hitting different cities, droughts in many parts of our country and very disturbing criminal cases being spoken, but the young generation of our lovey state manage to trend this #RIPactorVIJAY. [sic]”
Physicist Brian La Cour and electrical engineer Granville Ott at Applied Research Laboratories, The University of Texas at Austin (ARL:UT), have published a paper on the classical emulation of a quantum computer in a recent issue of The New Journal of Physics. Besides having fundamental interest, using classical systems to emulate quantum computers could have practical advantages, since such quantum emulation devices would be easier to build and more robust to decoherence compared with true quantum computers.”We hope that this work removes some of the mystery and ‘weirdness’ associated with quantum computing by providing a concrete, classical analog,” La Cour told Phys.org. “The insights gained should help develop exciting new technology in both classical analog computing and true quantum computing.”As La Cour and Ott explain, quantum computers have been simulated in the past using software on a classical computer, but these simulations are merely numerical representations of the quantum computer’s operations. In contrast, emulating a quantum computer involves physically representing the qubit structure and displaying actual quantum behavior. One key quantum behavior that can be emulated, but not simulated, is parallelism. Parallelism allows for multiple operations on the data to be performed simultaneously—a trait that arises from quantum superposition and entanglement, and enables quantum computers to operate at very fast speeds.To emulate a quantum computer, the physicists’ approach uses electronic signals to represent qubits, in which a qubit’s state is encoded in the amplitudes and frequencies of the signals in a complex mathematical way. Although the scientists use electronic signals, they explain that any kind of signal, such as acoustic and electromagnetic waves, would also work.Even though this classical system emulates quantum phenomena and behaves like a quantum computer, the scientists emphasize that it is still considered to be classical and not quantum. (Phys.org)—Quantum computers are inherently different from their classical counterparts because they involve quantum phenomena, such as superposition and entanglement, which do not exist in classical digital computers. But in a new paper, physicists have shown that a classical analog computer can be used to emulate a quantum computer, along with quantum superposition and entanglement, with the result that the fully classical system behaves like a true quantum computer. © 2015 Phys.org Explore further Emulation of quantum superpositions using classical signals. Credit: Applied Research Laboratories, The University of Texas at Austin “This is an important point,” La Cour explained. “Superposition is a property of waves adding coherently, a phenomenon that is exhibited by many classical systems, including ours. Citation: Quantum computer emulated by a classical system (2015, May 27) retrieved 18 August 2019 from https://phys.org/news/2015-05-quantum-emulated-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. Journal information: New Journal of Physics Drs. Granville Ott (left) and Brian La Cour (center) with student Michael Starkey (right) beside their prototype quantum emulation device. Credit Applied Research Laboratories, The University of Texas at Austin More information: Brian R. La Cour and Granville E. Ott. “Signal-based classical emulation of a universal quantum computer.” New Journal of Physics. DOI: 10.1088/1367-2630/17/5/053017 “Entanglement is a more subtle issue,” he continued, describing entanglement as a “purely mathematical property of waves.” “Since our classical signals are described by the same mathematics as a true quantum system, they can exhibit these same properties.”He added that this kind of entanglement does not violate Bell’s inequality, which is a widely used way to test for entanglement. “Entanglement as a statistical phenomenon, as exhibited by such things as violations of Bell’s inequality, is rather a different beast,” La Cour explained. “We believe that, by adding an emulation of quantum noise to the signal, our device would be capable of exhibiting this type of entanglement as well, as described in another recent publication.”In the current paper, La Cour and Ott describe how their system can be constructed using basic analog electronic components, and that the biggest challenge is to fit a large number of these components on a single integrated circuit in order to represent as many qubits as possible. Considering that today’s best semiconductor technology can fit more than a billion transistors on an integrated circuit, the scientists estimate that this transistor density corresponds to about 30 qubits. An increase in transistor density of a factor of 1000, which according to Moore’s law may be achieved in the next 20 to 30 years, would correspond to 40 qubits.This 40-qubit limit is also enforced by a second, more fundamental restriction, which arises from the bandwidth of the signal. The scientists estimate that a signal duration of a reasonable 10 seconds can accommodate 40 qubits; increasing the duration to 10 hours would only increase this to 50 qubits, and a one-year duration would only accommodate 60 qubits. Due to this scaling behavior, the physicists even calculated that a signal duration of the approximate age of the universe (13.77 billion years) could accommodate about 95 qubits, while that of the Planck time scale (10-43 seconds) would correspond to 176 qubits.Considering that thousands of qubits are needed for some complex quantum computing tasks, such as certain encryption techniques, this scheme clearly faces some insurmountable limits. Nevertheless, the scientists note that 40 qubits is still sufficient for some low-qubit applications, such as quantum simulations. Because the quantum emulation device offers practical advantages over quantum computers and performance advantages over most classical computers, it could one day prove very useful. For now, the next step will be building the device.”Efforts are currently underway to build a two-qubit prototype device capable of demonstrating entanglement,” La Cour said. “The enclosed photo [see above] shows the current quantum emulation device as a lovely assortment of breadboarded electronics put together by one of my students, Mr. Michael Starkey. We are hoping to get future funding to support the development of an actual chip. Leveraging quantum parallelism, we believe that a coprocessor with as few as 10 qubits could rival the performance of a modern Intel Core at certain computational tasks. Fault tolerance is another important issue that we studying. Due to the similarities in mathematical structure, we believe the same quantum error correction algorithms used to make quantum computers fault tolerant could be used for our quantum emulation device as well.” Protocol corrects virtually all errors in quantum memory, but requires little measure of quantum states
Kolkata: More than 1 crore people will exercise their franchise on May 6 in seven Lok Sabha constituencies where campaign came to an end on Saturday afternoon.These constituencies are Bongaon, Barrackpore, Howrah, Uluberia, Serampore, Hooghly and Arambag. In 2014 Lok Sabha polls, the Trinamool Congress had won in all these constituencies and political experts said the situation will remain the same. In these constituencies, the TMC supremo has not changed the candidates. Also Read – Rs 13,000 crore investment to provide 2 lakh jobs: MamataIn Bongaon, Mamatabala Thakur had won by 1.46 lakh votes in 2014. Binapani Devi, the head of the Matua community, had showered her blessings on the Trinamool Congress. But after her demise on March 5, the Matua community became divided and Shantanu Thakur, son of Manjul Krishna Thakur, is contesting on a BJP ticket against Mamatabala. Of these seven constituencies, the most important battle is between Dinesh Trivedi, the sitting MP of Trinamool Congress and Arjun Singh, who recently joined BJP from TMC. In 2014, Trivedi won the seat by 2.06 lakh votes and got only 37,382 votes from Bhatpara from where Singh was the MLA. Political experts said though a section of the media are creating a hype, Singh will not be able to create any dent within the Trinamool’s fort. Also Read – Lightning kills 8, injures 16 in stateIn Howrah, Prasun Banerjee, the sitting MLA, had won by 1.96 lakh votes in the 2014 elections. Rantideb Sengupta of the BJP is contesting against Banerjee. Sajda Ahmed, the widow of Sultan Ahmed, is contesting from Uluberia. In 2014, Sultan Ahmed won the seat by 2.01 lakh votes. After his premature death, Sajda was elected in the by-election and is contesting from the seat. Kalyan Banerjee had won by 1.52 lakh votes in 2014 from Serampore Lok Sabha seat. Dr Ratna Dey Nag, the sitting Trinamool MP, has been re-nominated. She had won the seat in 2014 by 2.89 lakh votes. This is her third consecutive term. Her principal opponent is BJP’s Locket Chatterjee. TMC’s Aparupa Poddar had won the Arambag seat by 3.46 lakh votes. Political experts said the Trinamool Congress will have no problem retaining the seat. Mamata Banerjee had addressed meetings in all these seats and took part in road shows that had attracted thousands of people. The election to these seats will take place on Monday between 7 am and 6 pm.