August 2019

first_img The UC Santa Barbara group used a microwave coplanar waveguide resonator with a superconducting qubit in order to provide the control needed to create, and to measure the decay of, the Fock states. “Learning more about the fundamentals of these states can provide us with some very practical information.” The group’s results are reported in Physical Review Letters: “Measurement of the Decay of Fock States in a Superconducting Quantum Circuit.” Haohua Wang, a postdoctoral scientist in the Martinis group, was the lead researcher on the experiment.“What we found,” Cleland continues, “is that the time decay of these Fock states follows precisely what is expected in theory. It gives us some good information about how these states work, as well as a foundation on which we can build elements for a quantum computer.”Cleland also points out that the work done by the Martinis group produced more than one photon for the experiment, and that hadn’t been done before. “Typically experiments use a combination of a zero photon Fock state and a one photon state. No one until now has developed the technology to show that you could controllably create states with more than one photon. We did.” The Martinis group results indicate that it is possible to control Fock states with up to 15 photons.Because Fock states are the fundamental quantum states of a harmonic oscillator, they are important to study. “These oscillators occur in many natural systems,” Cleland explains. “The electronic versions we studied are known as electromagnetic resonators. These resonators have a number of uses for quantum communications and computing.”One of the uses that such resonators might have includes memory elements for quantum computing. “Of course,” Cleland qualifies, “no one is close to doing the kinds of computations we’d like to be able to do, but this is a step that could get us there down the road.” The memory elements he refers to need a certain level of control that the Martinis group was able to develop with their present experimental setup. “The applications associated with having more than one photon – one of the things we showed in our experiment – are not as clear as a one photon memory function,” Cleland admits. But he does believe that there could be uses for such states in quantum simulation. “Right now, simulating the interactions between molecules requires giant computers to work a long time. It’s not very efficient. Quantum simulation could help us more efficiently see accurate interactions with a relatively simple quantum simulator.” Cleland concedes that the Santa Barbara group is more interested in building a quantum computer, even though he can see other possible uses for the work they have done. “We’ve created a level of control that might make it possible to program quantum memory, and that is exciting itself.”More Information: H. Wang, M. Hofheinz, M. Ansmann, R. C. Bialczak, E. Lucero, M. Neeley, A. D. O’Connell, D. Sank, J. Wenner, A. N. Cleland, and John M. Martinis. “Measurement of the Decay of Fock States in a Superconducting Quantum Circuit.” Physical Review Letters (2008). Available online: link.aps.org/doi/10.1103/PhysRevLett.101.240401 Copyright 2007 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. Citation: Fock states could hold clues to quantum memory components (2008, December 23) retrieved 18 August 2019 from https://phys.org/news/2008-12-fock-states-clues-quantum-memory.html Researchers make milestone discovery in quantum mechanics (PhysOrg.com) — “Fock states will play a role in the future of quantum computing,” Andrew Cleland tells PhysOrg.com. “We have completed the first experimental measurement of the time decay of Fock states in a superconducting quantum circuit, and we believe this will provide useful information as we work toward developing a quantum computer.” Cleland is a professor at the University of California, Santa Barbara, and works with a group headed by John Martinis.center_img 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. Explore furtherlast_img read more

Researchers propose new kind of MOF to clean coal burned in power

center_img Explore further (Phys.org)—A small team of researchers with members from India, Canada, the U.S. and Germany has come up with a new kind of metal-organic framework (MOF) to keep carbon in coal from entering the atmosphere when it is burned in power plants—thus reducing pollution and problems with global warming. In their paper published in the journal Science Advances, the team describes their new technique, and what hurdles need to be overcome for it to be used in commercial plants. 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. Britain indicates phase-out of coal power plantslast_img read more

Keep the Noises Off on Delhi stage

first_imgThat ‘thing’ behind the curtains or between the sheets or better off behind the stage is what Atul Kumar has put up this time in his play titled Noises Off. After creating a wave with his cult Piya Behroopiya, the director gears up to put together an act to see what transpires between actors, directors, stage hands etc. ‘It is a play within a play about a theatre company trying to put up a sex farce but because of their incompetence the entire thing turns into a big fiasco. It’s a comical look at what we all go through as theatre makers. Mainly exploring the noise that is made backstage (talking, fighting, constructing, electric) or as we say in theatre language off-stage as opposed to on-stage.’ said Atul. Also Read – ‘Playing Jojo was emotionally exhausting’Originally written by Michael Frayn, Atul directed the version ten years back and calls it one of the most translated and played comedy in the world- obviously a favourite of the theatre goers.‘I think a long time back Barry John directed a production in Delhi with Lilette Dubey and Shahrukh Khan acting in it,’ he added.So what really inspired this play? ‘It is extremely clever and funny look at what we all as theatre makers go through in our lives while at work and at home. It is a play I have liked since the first time I read it ten years back and I think I will direct it again and again. Whatever be the age and wherever you might be in this world if you do theatre it is difficult to not fall in love with Also Read – Leslie doing new comedy special with NetflixNoises Off.’‘We worked very quickly this time- we prepared the play within a month. We rehearsed for 10 hours or so first fortnight and then half a day in the end,’ he added. The play has a 70’s look with dress and makeup. And it was exciting to light up the backstage when the stage turns around to show you the backstage act.Any expectations or apprehensions from the Delhi audience?  ‘They should just come with open hearts and open minds. Noises Off is no deep piece of literature- it is very simply a funny look at the follies of a theatre company- its like saying lets look at this classicaly- a man is going to slip over a banana skin and it is still funny today,’ Atul quipped.Where- Kamani AuditoriumWhen- 17- 18 AugustTimings- 7.30 pm onwardslast_img read more

Art all the way

first_imgIn an endeavour to promote Indian Handicrafts and Handlooms, Union Government had announced setting up of a Handicraft mega cluster in Kachchh. The mega cluster will focus on handcrafted items and craft based textiles. As a first step towards promoting crafts from this region, Central Cottage Industries Corporation of India Ltd, a PSU under Ministry of Textiles has planned to organise Kachchh Mahotsav, an exhibition cum sale of exclusive handloom and craft based textiles from the region in its showroom at Jawahar Vyapar Bhawan on Janpath.   Also Read – ‘Playing Jojo was emotionally exhausting’The exhibition was inaugurated by Santosh Kumar Gangwar, Minister of State for Textiles (Independent Charge), Minister of State for Parliamentary Affairs, Water   Resources, River Development and Ganga Rejuvenation, Government of India at on 17 October.The exhibition focuses on Kachchh crafts from one of the most prolific regions of India such as  soof, mirror work, rabari, ahir, patchwork and other embroidered products, ajrak, tie and dye, batik and block printed textile products,   hand woven embroidered shawls, wooden lacquer ware, wood carvings, embroidered leather accessories, mud/clay work,  rogan painting. Also Read – Leslie doing new comedy special with NetflixKachchh is known for its distinctive traditional crafts, from embroidery to jewellery-making and carving. Using simple materials the artisans create objects of great beauty. The visitors will be enthralled to witness the Kachchi crafts range from block printing on textiles, bandhni of the Khatris, patch work of Bhirandiyara, leather creations by Meghwal artisans, besides traditional wood and lacquer work and Rogan, the extremely fine lacquer work on cloth produced by the artisans of Chobari and Nirona villages, ajrakh printing from Khavda village  to the exquisite beadwork of Rabari women. The folk embroidery of Kachchh is an ongoing and dynamic tradition. Some of the villages and communities have specialised for generations in certain crafts and thereby create masterpieces that delight a connoisseur. The visitors can also view live demonstration by the artisans and craft persons. The exhibition is on till 20 October. WHERE: Jawahar Vyapar Bhawan, Janpath WHEN: On till 20 October, 10 am to 7:30 pmlast_img read more

Renewable energy road map for Sunderban homes

first_imgKolkata: As part of its continued efforts towards sustainable development, WWF India has enabled alternative energy access to a cluster of households at Gosaba block in the Sunderbans. The organization, under its ‘Sahasra Jyoti’ project, had been working extensively with local communities in the mangrove forest area of West Bengal to provide them cost-effective energy solutions – while reducing the pressure on surrounding environment, a WWFI official said. Also Read – Heavy rain hits traffic, flightsA solar project at Satjelia Island in the area has already covered five hamlets, he said.”We have installed five micro grids in three phases with the installed capacity of 56.18 kW,” senior coordinator-energy access and communities, Climate Change and Energy Programme, Subhro Sen said.The number of establishments covered under the project in Gosaba block included 25 shops, eight institutions and 512 houses, he said, adding that over 2100 individuals have benefitted in the area. Also Read – Speeding Jaguar crashes into Merc, 2 B’deshi bystanders killed”Sixty per cent of the households that got electricity belonged to BPL families. We have also installed 50 street lights as part of the initiative,” he said.Four village energy committees, with local people as members, have been formed in the area to monitor the project implementation and eight persons have been trained to function as system operators, he added.The project has improved the living conditions of people in the rural areas, a senior official at the Kolkata chapter of the organization said.”The village folks can now keep their shops are open till late in the evening and children can study after sunset,” the official added.last_img read more

Monument to be erected in memory of Marichjhapi incident says Mamata

first_imgKolkata: Chief Minister Mamata Banerjee on Thursday announced setting up of a monument at Marichjhapi Island in the Sunderbans in memory of the incident of forcible eviction of Bangladeshi refugees in 1979 and the subsequent deaths of around thousands in police firing, starvation and disease. The response came from Banerjee during the question answer session in the Assembly about tourism projects in South 24-Parganas. Responding to another poser on whether the government is planning to host a light and sound show on Plassey ground, where the 1757 war of independence was fought similar to what is hosted at Motijheel, Banerjee said the proposal is under consideration. The response from the Chief Minister came after Tourism minister Goutam Deb failed to deliver proper information regarding tourism projects.last_img read more

Discovering life through melodies

first_imgMelodies that are soothing tend to be remembered by connoisseurs and to showcase the best, Atul productions is coming up with the lushness of classical Indian music in a live show titled-’Mousiqui – A musical interpretation of life’ at Siri Fort Auditorium in the national Capital.Atul Productions in association with A & G Partners, promises to enthrall the music lovers with their 35-member troupe of exemplary singers, musicians and dancers. The show is planned as a series of 10 events in important Indian cities starting with its grand opening in Delhi followed by Kolkata, Bangalore, Lucknow, Hyderabad, Jaipur, Bhopal, Chandigarh and others. Through a grand event at Assi Ghat, Varanasi around Vijayadashami this year, ‘Mousiqui’ will take the audience through musical interpretation of the five stages of life.  Also Read – ‘Playing Jojo was emotionally exhausting’The experience includes the serene seven notes of sur, the mystic melodies of raaga, the rejection and acceptance of unconditional love, the competitive spirit of Jugalbandi and the never-ending search for the supreme. This transcendent live music performance by musicians, singers and dancers will take Indian music and dance aficionados on a soul enriching experience.In the presence of elite dignitaries and classical music connoisseurs, Mousiqui will be unveiled with all the musical chords in a perfect harmony.Created by Sajjad Ali Chandwani, the festival –’Mousiqui – A musical interpretation of life’ is one of its kind. The composer Sajjad Ali is the grandson of legendary Ghulam Mohammed (Music Director of the film Pakeezah) and comes in with an experience of over a thousand international performances of similar shows in countries like France, UK, Canada etc.last_img read more

Vastu a deciding factor in real estate

first_imgWhile our entire focus is on how economic slow down and demonetization has engulfed the growth of real estate market, we are completely ignoring another crucial factor which is constantly and silently dominating the fate of real estate as well. Vastu experts. We as Indians are prone towards making impulsive emotional investments. Today, even as tenants look out for a residential apartment, office space or retail spaces, their first concern is Vastu. But if Vastu is considered as a bioplasmic architectural science, which has tools to help balance the five elements of nature controlling our life, then science should make things simple rather than complex and non-progressive, isn’t it? Or are we operating from fear psychosis factor by the so-called Vastu experts? Also Read – Add new books to your shelfTo understand how the Vastu hysteria created by these so-called Vastu experts can be resolved, Nilangshu Haldar – a renowned Maha Vastu expert from Kolkata and an independent Vastu consultant who works closely with numerous established developers in the city – came forward to clarify a few facts.Haldar clearly explains that Vastu corrections can be done on three levels. “If we happen to miss the corrections at the first level or the second level, we can still make the changes at the third level and these corrections will give us the same success rate at any level,” explained the Maha Vastu expert. Also Read – Over 2 hours screen time daily will make your kids impulsiveHe further elaborates, “The first level of Vastu correction is made at the time of purchasing of land. As uneven lands are trimmed and pruned to get a shape – it could be rectangular, square or even L-shaped. The second level is where an amalgamation of modern architecture and ancient Vastu-shastra work hand-in-hand to create a Vastu friendly construction with an attractive project design. Here again, the designs always depend on various factors like construction ROIs, facilities to be provided in the projects, to name a few. Hence, it is not always possible to keep the Vastu compliance as per the desire of the end users. Still, corrections can be made at the third level with colours and placement of various Vastu tools. Therefore, when people say “Is building ka Vastu thik nahi hai (the Vastu of this building is not good)”, then we should not forget that corrective measures are also available, with our Vedic science of Vastu-shastra.” In fact, there are other important details to be seen while choosing a property than to just be a Vastu fanatic. The material used for constructions, the foundation of the building, local infrastructural development and many other things needs to be considered before investing in a property. There are shopping malls, commercial complexes residential buildings that are vacant. Is it because the Vastu is not correct? Or is it just our inner fear created by external forces in the form of Vastu experts? If that’s the case, then what did the Vastu expert do at the first and second level? To all of these questions, Nilangshu replied, “An experienced and knowledgeable Vastu consultant should be well versed with the remedies to Vastu problems”. Among the real estate agents, competition developers, and rival property brokers, it has become a common practice to malign a property by spreading false rumours about a property – which in turn, creates difficult implications on the overall consumption in real estate.Originally, Vastu-shastra was used to make life prosperous and successful. But now, even with various real estate websites educating the prospective buyers about Vastu, fear and indecisiveness is increasing in our choices. The concern here is not Vastu, but the obsession that is creating a parallel corrupt industry by these so-called Vastu experts. It’s high time we wake up and use our intelligence, and use Vastu to our advantage.last_img read more

Veteran actor Chinmoy Roy no more

first_imgKolkata: Veteran Bengali actor Chinmoy Roy has died, family sources said Monday. He was 79. Roy died of cardiac arrest at his Salt Lake residence at around 10:20 pm Sunday, they said. Roy is survived by his son and daughter, his wife actress Jui Banerjee had died a few years back. Born in Kumilla district in present day Bangladesh in 1940, Roy had started his career in Bengali films in the 60s and became indispensable to the film makers for his portrayal of comic characters retaining the very essence of Bengaliness and a certain culture. He was equally noticed along with big names like Soumitra Chatterjee and Rabi Ghosh in a classic comedy like Basanta Bilap or in Dhonni Meye. Roy had been cast by Satyajit Ray in a small role in children’s fantasy Goopy Gyne Bagha Byne. He immortalised the character of Tenyda in the film Charmurti which became a major hit in the 1980s.last_img read more