Phys.org June 25, 2019 Building on a recent theoretical scheme, an international team of researchers (Austria, Serbia) successfully demonstrated that entanglement verification can be undertaken in a surprisingly efficient way and in a very short time, thus making this task applicable also to large-scale quantum systems. To test their new method, they experimentally produced a quantum system composed of six entangled photons. The results show that only a few experimental runs suffice to confirm the presence of entanglement with extremely high confidence, up to 99.99 percent. After a quantum system has been generated in the laboratory, the scientists carefully choose […]
Researchers teleport information within a diamond
EurekAlert June 28, 2019 Researchers in Japan have demonstrated quantum state transfer of photon polarization into a carbon isotope nuclear spin coupled to a nitrogen-vacancy center in diamond based on photon-electron Bell state measurement by photon absorption. The carbon spin is first entangled with the electron spin, which is then permitted to absorb a photon into a spin-orbit correlated eigenstate. Detection of the electron after relaxation into the spin ground state allows post-selected transfer of arbitrary photon polarization into the carbon memory. The study has big implications for quantum information technology…read more. Open Access TECHNICAL ARTICLE
Scientists chart course toward a new world of synthetic biology
UC Berkeley June 19, 2019 According to a road map released by the Engineering Biology Research Consortium partially funded by the National Science Foundation and centered at the UC Berkeley, the 20-year-old field of synthetic biology is now mature enough to provide solutions to a range of societal problems. The consortium is made up of 80 scientists and engineers from a range of disciplines, representing more than 30 universities and a dozen companies. The roadmap identifies five research areas that the federal government needs to invest in to fuel the bioeconomy and keep the U.S. at the forefront of the field. […]
Sensors and metrology as the driving force for digitalization
Fraunhofer Research News June 19, 2019 Researchers in Germany will be presenting the results of their research into sensor technology and its applications in the field of testing and measurement at Sensor+Test 2019, a forum for sensor and measurement technology. They will demonstrate how the quality of workpieces and components can be assured using a non-contact, non-destructive test method based on audio sensing of product and process parameters combined with machine learning. The nanoSPECTRAL technology developed by Fraunhofer IIS is based on optical nanostructures and enables a very cost-effective monolithic production of the required optical filters directly in CMOS semiconductor […]
A sound idea: a step towards quantum computing
Science Daily June 19, 2019 An international team of researchers (Japan, USA – University of Pittsburgh) used very short laser pulses to excite electrons inside a silicon crystal creating coherent vibrations of the silicon structure, such that the motions of the electron and the silicon atoms became entangled. The state of the system was then probed after a variable delay time with a second laser pulse. Based on their theoretical model, the scientists were able to explain oscillations observed in the charge generated as a function of delay time. The research may lead to quantum computers based on existing silicon […]
A wearable vibration sensor for accurate voice recognition
Phys.org June 24, 2019 Conventional vibration sensors recognize a voice through air vibration and the sensitivity decreases due to mechanical resonance and the damping effect, therefore they are not capable of measuring voices quantitatively. Researchers in South Korea developed a device which consists of an ultrathin polymer film and a diaphragm with tiny holes that can sense voices quantitively by measuring the acceleration of skin vibration. They demonstrated that the voice pressure is proportional to the acceleration of neck skin vibration at various sound pressure levels from 40 to 70 dBSPL. This research can be further extended to various voice-recognition […]
Top 10 Science and Technology Inventions for the Week of June 21, 2019
01. Discovery of a ‘holy grail’ with the invention of universal computer memory 02. Melting a satellite, a piece at a time 03. Secure quantum communications in the microwave range for the first time 04. Spotting objects amid clutter 05. World’s First “Quantum Drone” for Impenetrable Air-to-Ground Data Links Takes Off 06. Building the tools of the next manufacturing revolution 07. Materials informatics reveals new class of super-hard alloys 08. Researchers see around corners to detect object shapes 09. Quantum physics experiment shows Heisenberg was right about uncertainty, in a certain sense 10. Here are 10 ways AI could help […]
Biological Threat Reduction: Design and Build Effluent Treatment System at Kenya’s FMD Vaccine Facility
Global Biodefense June 18, 2019 The Kenya Veterinary Vaccine Production Institute/National Veterinary Quality Control Lab (KEVEVAPI/NVQCL) is the national foot and mouth disease vaccine producer and a quality control laboratory in Kenya. Pathogen containment capacity at the lab is an important milestone to reduce the risk of widespread foot and mouth disease outbreaks. The Defense Threat Reduction Agency’s Biological Threat Reduction Program (BTRP) is seeking eligible performers to design and install a new Effluent Treatment System…read more. Solicitation
Building the tools of the next manufacturing revolution
MIT News June 17, 2019 In partnership with industry, researchers at MIT are developing advanced materials — new types of polymers, nanocomposites, and metal alloys — and the development of novel machines and processes that use and shape materials, such as high-speed 3-D printing, roll-to-roll graphene growth, and manufacturing techniques for low-cost sensors and electronics. Leveraging advances in computation, digitization, and automation, the group sees the potential for 3-D printing to dramatically streamline and speed up global supply chains. They are also pursuing a series of projects related to carbon nanotubes, exploring ways to form nanotubes into advanced wires, fibers, […]
Discovery of a ‘holy grail’ with the invention of universal computer memory
EurekAlert June 20, 2019 An international team of researchers (UK, Spain) has developed an oxide-free, floating-gate memory cell based on II-V semiconductor heterostructures with a junctionless channel and non-destructive read of the stored data. While writing data to DRAM is fast and low energy, the data is volatile and must be continuously ‘refreshed’ to avoid it being lost. This is clearly inconvenient and inefficient. Flash stores data robustly, but writing and erasing is slow, energy intensive and deteriorates data, making it unsuitable for working memory. The new device combines the advantages of both without their drawbacks…read more. Open Access TECHNICAL […]