Lifeboat Foundation

Quantum information protocols require various types of entanglement, such as Einstein-Podolsky-Rosen, Greenberger-Horne-Zeilinger, and cluster states. In optics, on-demand preparation of these states has been realized by squeezed light sources, but such experiments require different optical circuits for different entangled states, thus lacking versatility. Here, we demonstrate an on-demand entanglement synthesizer that programmably generates all these entangled states from a single squeezed light source. This is achieved by a loop-based circuit that is dynamically controllable at nanosecond time scales and processes optical pulses in the time domain. We verify the generation of five different small-scale entangled states and a large-scale cluster state containing more than 1000 modes without changing the optical circuit. Moreover, this circuit enables storage and release of one part of the generated entangled state, thus working as a quantum memory. Our demonstration should open a way for a more general entanglement synthesizer and a scalable quantum processor.

Entanglement is an essential resource for many quantum information protocols in both qubit and continuous variable (CV) regimes. However, different types of entanglement are required for different applications (Fig. 1A). The most commonly used maximally entangled state is a two-mode Einstein-Podolsky-Rosen (EPR) state (1), which is the building block for two-party quantum communication and quantum logic gates based on quantum teleportation (2, 3). Its generalized version is an n-mode Greenberger-Horne-Zeilinger (GHZ) state (4, 5), which is central to building a quantum network; this state, once shared between n parties, enables any two of the n parties to communicate with each other (5, 6). In terms of quantum computation, a special type of entanglement called cluster states has attracted much attention as a universal resource for one-way quantum computation (7–9).

To that end, Bezos instead suggested people consider taking up residence in O’Neill colonies, a futuristic concept for space settlements first dreamed up decades ago. “These are very large structures, miles on end, and they hold a million people or more each.”

Can we, as adults, grow new neurons? Neuroscientist Sandrine Thuret says that we can, and she offers research and practical advice on how we can help our brains better perform neurogenesis—improving mood, increasing memory formation and preventing the decline associated with aging along the way.

TEDTalks is a daily video podcast of the best talks and performances from the TED Conference, where the world’s leading thinkers and doers give the talk of their lives in 18 minutes (or less). Look for talks on Technology, Entertainment and Design — plus science, business, global issues, the arts and much more.
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Continue reading “You can grow new brain cells. Here’s how | Sandrine Thuret” »

SAN LEANDRO (KPIX) — It is the stuff of science fiction and Hollywood movies. The promise: upon your death, your body is frozen until some future medical breakthrough restores you to full health.

Roughly 400 Americans — before they died — decided to bank on the possibility that this will happen. Their bodies are now being held at three facilities in the United States, including one in the East Bay.

“This is like a hospital,” explained Steve Garan, who took KPIX 5 reporter Juliette Goodrich on a tour of Trans Time, a Bay Area Cryonics facility in San Leandro.

Continue reading “Inside TransTime Cryonics Facility: Bodies Frozen, Awaiting A Future Reawakening” »

(HealthDay)—Most folks know that sugary drinks aren’t healthy, but a new study finds fruit juices are not much better.

In fact, consuming them regularly may help shorten your life, researchers say.

“Older adults who drink more sugary beverages, which include fruit juice as well as sodas and other sugar-sweetened beverages, may be at risk of dying earlier,” said study author Jean Welsh. She is an associate professor at Emory University School of Medicine in Atlanta.

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KIRK DOUGLAS AND HIS WIFE are now centenarians together. I have always liked Kirk and his Son Michael Douglas, so much so, over two decades ago I reached out to their Hollywood agent at William Morris and asked if Kirk Douglas would be interested in buying a script and playing a part of the main character in the script which is-was a telling of a biographical segment of my Life and a Jewish War hero from Russia I had met and befriended just months before he died.

Kirk Douglas is 102 years old and will reach his next birthday milestone on December 9th. Most loyal Douglas fans know this! However, many people don’t realize that his wife, Anne Buydens, just turned 100. Talk about longevity in their family! The lovely couple has been married for 64 years and the actor calls his wife his “soulmate.” Aww!

Part of the Douglas family includes his son, Michael Douglas, and his wife Catherine Zeta-Jones. With this being said, Anne often doesn’t make headlines as much as the other members of the family do, but she is this time!

Continue reading “Kirk Douglas Is 102 Years Old, But His Wife Just Turned 100! Take A Look At Their History Together” »

Nearly a year in space changed Scott Kelly’s genes, brain function and more, NASA’s Twin Study shows.

New research suggests that the Big Bang that birthed the cosmos occurred 12.5 billion years ago.

The Large Magellanic Cloud, a satellite galaxy of the Milky Way, is nearly 200,000 light-years from Earth. ESA / Hubble / Josh Lake / via AFP — Getty Images.

Is the future finally here? The arrival of 5G (fifth generation mobile networks) has been keenly anticipated and long discussed. And if you attended the latest Mobile World Congress, held in Barcelona in February, you would have seen plenty to suggest that 5G will take off in 2019. Smartphone manufacturers are busy preparing their 5G models, the wireless networks on which they will run are being planned, and there is no shortage of visionary use cases highlighting how virtual reality and other technologies will harness 5G’s amazing power and connectivity. In short, our lives are about to change.