Other News From Sony:In other Sony news, there are no immediate plans to release a larger version of its XEL-1 11-inch OLED TV introduced at CES 2008. A prototype 21-inch non-flexible OLED TV was demonstrated with a .09 mm thin depth, 1 million-to-1 contrast ratio with a super fast response time. Additionally, Sony demonstrated a 27-inch OLED TV prototype, but no release date has been set. 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. (PhysOrg.com) — Sir Howard Stringer, CEO Sony introduced an improved prototype of the FLEX OLED display during his keynote address at CES 2009. The Flex OLED technology will in all probability be integrated into future portable devices. A previous video demonstration of the Flex OLED in 2007 showed a few unacceptable defects, characteristic of early stage development issues. The Flex OLED is still in the development stage, but observers agree the new and improved version is outstanding. Citation: Sony Is All Fired Up At CES 2009: OLED & Webbie Debut (2009, January 9) retrieved 18 August 2019 from https://phys.org/news/2009-01-sony-ces-oled-webbie-debut.html Sony Webbie
© 2012 Phys.org Explore further 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. Sad news: Linux fans, especially gamers, have expressed frustration in not being able to enjoy the most out of mobile computers that carry the Optimus switching technology as a power-saving mechanism.Linux users have had the option of checking out the Bumblebee project, which notes that “Many recent notebooks with a discrete nVidia card in it and an i3/i5/i7 processor use the nVidia Optimus technology to improve battery life. Unfortunately, this software solution is only available in Windows 7 and later.The Bumblebee Project is a set of tools developed by people aiming to provide Optimus support under Linux (legacy nVidia hybrid graphics is supported too) while waiting for kernel and drivers to support these notebooks.”Even Linus Torvalds let loose on his frustration bordering on disgust earlier this year at an entrepreneur session in Finland. He was asked why NVIDIA did not offer support for its GPU under Linux. Torvalds responded that NVIDIA was a thorn and that he thought it very sad that NVIDIA was being difficult about it. But back to some good news. The latest word is that NVIDIA is working to achieve Linux compatibility with its Optimus graphics switching technology. In a recent e-mail sent to a developer listserv, NVIDIA software engineer Aaron Plattner expressed remarks that indicate NVIDIA is working on Linux support. Plattner in the e-mail said that he has created a working proof of concept driver.Reader comments to news sites reporting the NVIDIA engineer’s e-mail have been favorable, in fact happy. Compatibility moves will benefit NVIDIA audiences as well as fans of Linux. Hopes are that the two will work things out. Certainly among the hopefuls are those who use their laptops for gaming and need better battery life. Running Linux on Optimus-equipped laptops, for many, will be ideal. More information: bumblebee-project.org/ (Phys.org)—Good news: NVIDIA has a technology called Optimus which since its 2010 launch is regarded as a great extender for notebook, netbook, and ultrabooks. Some NVIDIA fans think favorably of Optimus as “awesome” in the way it can tap into the discrete GPU when needed to conserve power. They like the way battery life is preserved as GPU power is switched off when not needed and switched on when needed again. As the company explains, NVIDIA Optimus technology automatically and instantaneously uses the high performance NVIDIA GPU for GPU-Compute applications, video, and 3-D games; and low power integrated graphics for applications such as web surfing or email. The Optimus approach in “dynamic” switching based on application needs is notable and according to reports a growing number of laptops from the commercial majors are equipped with Optimus. Citation: NVIDIA takes one step closer to Linux support (2012, September 6) retrieved 18 August 2019 from https://phys.org/news/2012-09-nvidia-closer-linux.html NVIDIA Introduces New Integrated GeForce 9400M GPU
Journal information: Nature Physics © 2017 Phys.org Blind quantum computing for everyone Citation: Unconventional quantum systems may lead to novel optical devices (2017, August 22) retrieved 18 August 2019 from https://phys.org/news/2017-08-unconventional-quantum-optical-devices.html The physicists, led by Peng Xue at Southeast University in Nanjing, have published a paper on the PT-symmetric quantum walks in a recent issue of Nature Physics.”We present an experimental work tying together three concepts—-non-unitary quantum walks at a single-photon level, PT symmetry, and topological edge states originating from Floquet topological phases,” Xue told Phys.org. “Each of these three concepts has attracted much attention in the past years in the scientific community. The interplay of these elements in our experimental system will no doubt give rise to rich physics.”The new results build on discoveries made over the past 20 years regarding a new class of quantum systems called non-Hermitian Hamiltonians that deviate from conventional quantum systems. In general, the Hamiltonian of a quantum system, which is a measure of its total energy, must have eigenvalues that are real rather than complex numbers, where the eigenvalues are associated with the physical properties of the quantum system. For many decades, it was thought that Hamiltonians must be mathematically described using Hermitian operators, since Hermitians always have real eigenvalues.Although being Hermitian is sufficient for a Hamiltonian to have real eigenvalues, in 1998 physicists discovered that Hamiltonians can be non-Hermitian and still have real eigenvalues, as long as they obey PT symmetry. This discovery opened up a whole new class of quantum systems for physicists to explore. Currently, the study of PT-symmetric non-Hermitian systems is an area of active research that holds promise for a variety of applications, particularly in the field of optics.The new study contributes to this research by demonstrating single-photon PT-symmetric quantum walks. Previously, physicists have theoretically investigated these systems, but the new study marks the first experimental demonstration due to the challenges involved in amplifying single photons. “A PT-symmetric quantum walk is a non-unitary extension of the unitary quantum walk, which is in turn a quantum mechanical version of the classical random walk,” Xue explained. “Just as PT-symmetric non-Hermitian Hamiltonians broaden the horizon of conventional quantum mechanics, a PT-symmetric quantum walk represents a new kind of quantum walk with unique features that are quite different from those of a unitary quantum walk.”This demonstration, in turn, led the researchers to experimentally demonstrate exotic properties called Floquet topological properties in PT-symmetric quantum walks for the first time. The scientists observed that Floquet topological edge states arise between regions with different bulk topological properties, suggesting that these systems contain intriguing quantum phenomena awaiting further exploration. Floquet topological properties are characterized by a pair of topological numbers, and controlling these properties may lead to the development of new quantum optical devices. “I think our work may lead to a new generation of synthetic PT-symmetric systems,” Xue said. “In PT-symmetric classical systems, recent progress may lead to applications in optical switching, modulation, sensors, wireless power transfer, and so on. While our experiment demonstrates Floquet topological states (a special topological matter with time-periodic drives) driven by PT-symmetric quantum dynamics, it provides a new platform where the interplay of PT-symmetric quantum dynamics and topological properties not only offer a quantum mechanical version of PT-symmetric systems, but may also lead to potential applications in quantum information, quantum computation, and quantum sensing.” Explore further
As a tribute to Gurudev Rabindranath Tagore, four prominent choreographers presented some stunning performances based on the translations of some of Tagore’s poems alongside the Bengali originals at India Habitat Centre’s Stein Auditorium. The evening was also a token of love and affection towards Padmashree Utpal Banerjee, who turned 80 on 27 September. So what’s the connection between Utpal Banerjee and Tagore you ask? Here’s the answer – Banerjee has penned 10 books on Tagore’s dance, drama and songs, creating a record by publishing seven of them within a year, which has been recognised in Limca Book of Records. Also Read – ‘Playing Jojo was emotionally exhausting’He has also written a book Tagore’s Mystique of Dance which is prescribed as text-book for courses on dance in Visva Bharati University, Santiniketan. Banerjee is also a Tagore Research Scholar (under Ministry of Culture) and a translator for National Sahitya Akademi, who has published these volumes. The choreographers – Rama Vaidyanathan with Dakshina Vaidyanathan (Bharatanatyam), Padmashree Shovana Narayan (Kathak), Padma Shri Bharati Shivaji (Mohiniyattam) and Santosh Nair’s Sadhya (Mayurbhanj Chhau and Contemporary) – took on Tagore’s works and presented them in their own signature styles on stage. Also Read – Leslie doing new comedy special with NetflixThe evening also included the launch of Banerjee’s four volumes of English poems which has been translated from Tagore’s satirical and whimsical rhymes. Shovana Narayan, picked one of the ‘nonsensical’ versse from the Khapchhada series of Tagore, choosing the piece on Motilal Nandi, a character that we can all identify with. Very often in our lives, learning of grammar and vocabulary have eluded us and left us frustrated. So was the case with Motilal Nandi. Dakshina Vaidyanathan performed Rabibar which is a child’s innocent complaint about why Sunday takes a long time to come. Rama Vaidyanathan presented Shishu Bholanath which is about a mother reveling in her naughty and vivacious child who goes around destroying everything around him. In her performance she addressed Bholanath – Lord Shiva, the creator and the destroyer. The music was been composed by vocalist Ranita Dey who also sang the poems. Padmashree Bharati Shivaji along with students – Olga, Lakshmi Ramakrishnan and Deepthi Nair presented an extract from Janmakatha where the mother is asked by her child where did she pick him from? Astonished by his queries, she explains how from the very beginning of evolution of the Universe he has been there with her. Santosh Nair’s Sadhya presented a choreographed piece titled Kalpnik which is based on Tagore’s two poems from the fantasy volume namely The Dream (Swapan) and There was a Tiger (Ek Chhilo Bagh). The poem Swapan is about the magic dream of the child to become a cloud and Ek Chhilo Bagh brings forth a tiger who speaks the human language and displays all the human emotions. The choreography revolves around the dream of an individual who falls asleep while reading the fantasy volume and how the readings reflect in her dreams creating a fiction of its own.
Kolkata: A 43-year-old doctor committed suicide by hanging himself from the ceiling of a room in his house at Chetla on Thursday evening.Police said the victim, Amlan Dutta, was found hanging from the ceiling fan at around 4 pm on Thursday. Police was informed soon after it came to the notice and he was taken to SSKM Hospital where he was declared brought dead.Police initiated a probe in this connection and sent the body for an autopsy. A police officer said apparently no external marks of injury were found on his body. But they are waiting for the autopsy report in order to come to a final conclusion about whether there was any foul play behind his death. No suicide note was found from the room where he was found hanging and cops are trying to ascertain the exact reason that forced him to take such a step. Police will also speak to the family members of the victim to know whether he was passing through any problem. Also Read – Heavy rain hits traffic, flightsIn another incident, the decomposed body of a 48-year-old man was found in a room where he used to stay as a tenant. The victim was orginially a resident of Ghaziabad in Uttar Pradesh and he came to Kolkata for work. Police are trying to ascertain the exact reason behind the death of the person. They suspect that he had died a couple of days ago. On Thursday, locals got foul smell and reported the matter to the police, who rushed to the spot and sent the decomposed body to SSKM Hospital. . They are trying to find out whether there is any foul play behind the incident and also spoke to the locals who told the police that they never found anything suspicious in his behaviour.