For the first time, researchers have used genetic algorithms to reduce quantum errors in digital quantum simulations. Credit: U. Las Heras et al. ©2016 American Physical Society 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. Now for the first time, researchers Urtzi Las Heras et al. at the University of the Basque Country in Bilbao, Spain, have applied genetic algorithms to digital quantum simulations and shown that genetic algorithms can reduce quantum errors, and may even outperform existing optimization techniques. The research, which is published in a recent issue of Physical Review Letters, was led by Ikerbasque Prof. Enrique Solano and Dr. Mikel Sanz in the QUTIS group.In general, quantum simulations can provide a clearer picture of the dynamics of systems that are impossible to understand using conventional computers due to their high degree of complexity. Whereas computers calculate the behavior of these systems, quantum simulations approximate or “simulate” the behavior.As a quantum technology, digital quantum simulations face many of the same challenges that confront the quantum computing field in general. One such challenge is information loss due to decoherence, which occurs when a quantum system interacts with its environment. In order to protect quantum simulations against this loss, scientists use quantum error correction protocols, which provide a kind of back-up by storing information in entangled states of multiple qubits using quantum gates.Storing information in an entangled state is a highly complex undertaking in the context of quantum error correction. For a system with just 4 qubits and 7 gates, the number of possible gate arrangements climbs into the trillions. Optimization techniques are used to sift through all of these designs and find the architecture that minimizes the error. In the new study, the researchers demonstrated that genetic algorithms can identify gate designs for digital quantum simulations that outperform designs identified by standard optimization techniques, resulting in the lowest levels of digital quantum errors achieved so far. Citation: Genetic algorithms can improve quantum simulations (2016, June 23) retrieved 18 August 2019 from https://phys.org/news/2016-06-genetic-algorithms-quantum-simulations.html © 2016 Phys.org Besides reducing errors due to decoherence, genetic algorithms can also reduce two other types of errors in digital quantum simulations. One type is the digital error created by the reduced number of steps used for approximating the algorithms. Another type of error arises from the imperfections in the construction of each of the gates. As the researchers explain, one reason why genetic algorithms perform so well is their adaptability. Just like natural selection adapts to changes in environmental conditions, genetic algorithms continually adapt to different constraints imposed by different quantum technologies. “Genetic algorithms are characterized by different features: adaptability and robustness,” Solano told Phys.org. “Their adaptability allows for a flexible and clever technique to solve different problems in different quantum technologies and platforms. The robustness of the algorithm yields solutions that are resilient against errors, which allows us to cancel different error sources. [Due to these characteristics,] our work provides a new flexible tool in quantum simulations that allows us to reduce the required physical resources while keeping the operation precision. It also reduces the total decoherence and digital error by seizing on the different unavoidable error sources to mutually cancel each other.”Genetic algorithms already have been used in a wide variety of applications, such as finding the most efficient electrical circuit design, finding the mirror orientation that focuses the maximum amount of sunlight onto a solar collector, and designing antennas that are optimally tuned for detecting specific types of signals.With help from genetic algorithms, future quantum simulations are expected to be useful for gaining a better understanding of complex physics, designing novel materials and chemicals, and solving problems in machine learning and artificial intelligence.”These techniques could be used to solve problems that require resources unaffordable for present and future digital quantum simulations and gate-based quantum computing, by reducing and optimizing them,” Solano said. “Also these techniques could easily decompose a problem into quantum gates adapted to different quantum platforms and quantum technologies. Finally, these techniques could also be applied to different problems in quantum computation and quantum information, such as the design of improved qubits, for instance. Needless to say, quantum simulations and quantum computing aim at the big picture: artificial intelligence, pattern recognition, design of new materials and chemicals, solving complex problems in aerodynamics, and quantum field theories, among many others.” Google combines two main quantum computing ideas in one computer Journal information: Physical Review Letters (Phys.org)—Inspired by natural selection and the concept of “survival of the fittest,” genetic algorithms are flexible optimization techniques that can find the best solution to a problem by repeatedly selecting for and breeding ever “fitter” generations of solutions. Explore further More information: U. Las Heras et al. “Genetic Algorithms for Digital Quantum Simulations.” Physical Review Letters. DOI: 10.1103/PhysRevLett.116.230504
With a vision to provide young dancers with an eclectic opportunity so that true talent nurtures and pans into expanding horizons, the dance community have come together to observe the World Dance Day. Propounded by dancer/ choreographer Geeta Chandran, the event will present young dancers from Natya Vriksha celebrating the spirit and devotion to the art form.This festival is organised in collaboration with the Ministry of Culture, UNESCO, Sangeet Natak Akademi, NTPC and India International Centre. Also Read – ‘Playing Jojo was emotionally exhausting’Expanding over two days, the first day will feature an open-house seminar discussing what is classical in dance and will conclude with two performances (Kathak and Kutiyattam each). The second day will witness the young dancers festival by putting up Bharatnatyam and Sattriya performances by Aditi Balasubramanian and Anwesa Mahanta respectively.Other artists participating include names like Swati Sinha, an ‘A’ grade artist of Doordarshan she has performed in major cultural events such as Khajuraho Dance Festival and Spic Macay. Aditi Balasubramanian is touted to be a Bharatnatyam child prodigy, she is merely 12 years old. Lastly Anwesa Mahanta, has been an active performer since 2001 presenting Sattriya in its solo form.DETAILWhere- India International Centre Auditorium 40, Max Mueller Marg, Lodi Estate When- 27 and 28 AprilTimings- 3.30 pm – 6.30 pm
Desires Unlimited, a Delhi based theatre group, is soon presenting the city’s first classical theatre festival titled Epoch – A Classic Theatre Festival. Commencing on 8 March, the festival will showcase the group’s flagship plays which include 3, Sakina Manzil and Rope, that are based on a bygone era.Epoch is set in a month, which is known for its significance be it historic or social. The festival captures two prominent yet classical themes of the month of March: ‘spring’ and Idus Martii (Ides of March). The Gandhian love story based in a pre-independent India, 3, Sakina Manzil promises to be refreshing like the spring. While, the play Rope which is a classic murder story, resonates with the touted Ides of March known popularly for assassination of Julius Caesar by Brutus. Also Read – ‘Playing Jojo was emotionally exhausting’The play 3, Sakina Manzil which will be staged on 8 and 9 March is set in pre-independence era when the country was fighting for its independence, when the world was being ravaged by World War II, and the Hindi film Industry was learning to stand on its feet. Amidst all this, in an old apartment building of Bombay, 3, Sakina Manzil, a love story of two silent lovers Shashi and Comrade Shashi unfolds. Torn apart by destiny, they tread different paths only to meet again after five decades. The play explores how people despite the crisis of their times, managed to fall in love and sustain it over the years, no matter the distance or time that separated them. The other play Rope being staged on 15 and 16 March, questions how we view murder. Also Read – Leslie doing new comedy special with NetflixDaniel and Sunny, graduates from St. Georges College Mussorie, fancy the notion of murder being an art. Influenced by Nietzsche and their own Prof. Kohli’s theories about superior beings, they consider themselves superior to their innocent classmate and strangle him. The two then call for a party and serve food from the chest that contains Dilip’s corpse. To add to the thrill, the guests include Dilip’s relatives, friends and Prof. Kohli. The plot thickens when Sunny starts to crack-up under pressure and Prof. Kohli begins to suspect. Desires Unlimited, established in 2006, is a production house for digital audio visual content. It was co-founded by a group of engineers cum artists from IIT Delhi. Though IITians are known for their Silicon Valley startups, these youngsters opted for a different playground all together. The group has created corporate films for brands such as Britania, Samsung, and Pricewaterhouse Coopers (PwC).WHEN: 8-16 MarchWHERE: LTG Auditorium
As you enjoy winter this year, don’t forget the plight of the Jammu and Kashmir people who were affected by the recent flood. To ‘Spread the warmth’ and extend a supportive gesture, DLF Place, Saket in association with Cequin Ngo presents Spread The Warmth campaign. A social endeavour to bring back the glory of Kashmir by facilitating the victims with warm clothes, blankets, shoes and other useful materials.DLF Place, Saket is also holding an art exhibition in association with Delhi Street Art group. The art group is also be showcasing live painting sessions till 20 November at the centre court Also Read – ‘Playing Jojo was emotionally exhausting’of the mall.The campaign was flagged off by Sara Pilot (Chairperson, Cequin) along with other well known faces of New Delhi like Jai Madan, Promila Bahri, Viraj Bahri, Jayashree Raghuram and others. All of them came forward to donate generously in order to support this noble cause. Café Delhi Heights, treated guests with delectable refreshments, appreciating their valued effort. Benu Sehgal, Mall Head, Mall Management DLF Place, Saket said ‘The difficulty of the people of Jammu and Kashmir has always been a matter of concern, it’s just the floods have only made it worse. We urge people to take a pledge to contribute as much as they can to keep the needy warm and to bring a smile on their faces this winter. We feel it’s a great opportunity for everyone to do their bit for their well being. Each drop of support counts for them to settle back after this massive disaster’.Where : DLF Place, Saket When: 20 November
Kolkata: A fire broke out at a multi-storeyed building on AJC Bose road near Mullick Bazar on Wednesday afternoon triggering panic in the area.The fire took place on the third floor of the building, where spare parts of vehicles were stored. No casualty or injury has been reported in the incident so far.Locals spotted smoke billowing out of the building at around 12 pm and reported the matter to the fire brigade. The area was soon covered in black smoke and people started running from one place to the other for shelter. Also Read – Heavy rain hits traffic, flightsSome people, who were in the other floor of the building, panicked and left the building. After being informed, the fire brigade officials rushed to the spot and as many as ten fire-tenders were pressed into action to douse the flames. Police cordoned off the entire area to check any untoward incidents. Moulali bound vehicles were diverted due to fire incident. There was a huge traffic jam in the area. The situation became normal a couple of hours later. Locals also took part in the rescue operation. They rescued the people who were inside the building and removed them to prevent any accident. Also Read – Speeding Jaguar crashes into Merc, 2 B’deshi bystanders killed They initially tried to restrict the fire from spreading to other rooms. The fire fighters later restricted the fire from spreading into the adjacent buildings.The situation was brought under control within one hour. According to a preliminary investigation, police and fire officials suspect that some inflammable materials might have been stored which aggravated the situation. The exact cause of the fire and the extent of the damage are yet to be ascertained. A detailed probe has been initiated in this regard.
In an endeavour to evolve the food and beverage industry in India, Lite Bite Foods with HMSHost will together bid to acquire the rights, to launch and operate International and domestic food and beverage outlets at retail destinations like airport, train stations and highways across India. HMSHost is the world’s largest provider of food and beverage (F&B) services.The joint venture will operate under the name Lite Bite Foods HMSHost and will be based out of Gurgaon. Also Read – ‘Playing Jojo was emotionally exhausting’With HMSHost’s presence across the dynamic F&B markets in the world, it will bring tremendous opportunities for Lite Bite Foods to enter new markets.The joint venture will operate under the name Lite Bite Foods HMSHost and will be based in Gurgaon. While HMS will own 51
KolkatA: Bidhannagar Police has introduced an app based booking service at Kolkata airport for passengers.On Monday, Deputy Commissioner (headquarters) Amit Javalgi informed that from now on passengers would be able to book a yellow or white and blue no refusal taxi in advance.According to the officials, till Sunday one could only book a taxi by being present in person at the prepaid taxi counter near 3C gate.To make the process more convenient and user-friendly, high ranked police officials came up with the idea of this app. People can now download the app named ‘Bidhannagar Police Prepaid Taxi’ from Google play store.”Following the installation of the app, a person need to register himself by putting information such as name, mobile number, e-mail address on the app. After successful completion of the registration process, one can book a taxi whenever he or she needs to. Payment can be made through net banking, credit or debit cards. There is no need to wait in a queue,” said an official from Bidhannagar Police.Following a booking, one needs to scan a QR code which will be available at a kiosk opposite to 4A-4B gate. After the scanning process, one will get the vehicle registration number on which they have to board. At present, taxis make enter inside the airport terminal through a Radio Frequency Identification Device (RFID) scanner which is installed beside Netaji Subhas Chandra Bose International (NSCBI) Airport traffic guard.The passengers will get the taxi registration number after the taxi goes through the RFID scanner.