Menu

Blog

Page 7591

Jul 8, 2016

New microfluidic device offers means for studying electric field cancer therapy

Posted by in categories: biotech/medical, health

Very interesting — MIT testing electric field cancer therapy.


Low-intensity fields keep malignant cells from spreading, while preserving healthy cells.

Read more

Jul 8, 2016

Tiny Hydraulic ‘Nano-Press’ Crushes Things Out of This Dimension

Posted by in categories: materials, nanotechnology

It could be used to make new 2D materials, but this one probably won’t go viral.

Read more

Jul 8, 2016

New DNA ‘hard drive’ could keep files intact for millions of years

Posted by in categories: biotech/medical, computing, genetics

Luv it.


Microsoft and genetics boffins predict genetics in the datacenter.

dna

Continue reading “New DNA ‘hard drive’ could keep files intact for millions of years” »

Jul 8, 2016

China’s new radio observatory is 200 meters larger than Arecibo

Posted by in category: space

Impressive.


With the FAST telescope construction complete, next comes first light in September.

Read more

Jul 8, 2016

Watch This Amazing 3D Bioprinter Make Artificial Bones From Scratch

Posted by in categories: 3D printing, biotech/medical

If 3D printing is already impacting manufacturing today, what breakthroughs could bioprinting — or printing any mix of organic and inorganic materials — achieve tomorrow? In a recent video, a basic prototype of the Aether 1 bioprinter is shown printing two bones connected by a tendon using six materials that include synthetic bone, conductive ink, stem cells and graphene oxide.

While bioprinted organs are still a long way off — this video offers a glimpse into that future.

Continue reading “Watch This Amazing 3D Bioprinter Make Artificial Bones From Scratch” »

Jul 8, 2016

HTTPS crypto’s days are numbered. Here’s how Google wants to save it

Posted by in category: quantum physics

I am really glad people are focusing because August is going to be a big month for China and their state funded groups.


Coming to a browser near you, new, post-quantum crypto.

Read more

Jul 8, 2016

Scientists obtain evidence of many-body localization in a closed quantum system

Posted by in categories: computing, particle physics, quantum physics

Finding evidence of many-body localization in a closed quantum system.


During equilibration ordinary many-body systems lose all information about the initial state. Every morning we experience an example for this behaviour. Milk poured into a cup of coffee mixes perfectly and after some time it is impossible to say how exactly the two fluids were put together. The same behaviour holds for almost all quantum systems. However, recently a new phenomenon called “many-body localization” has been predicted theoretically, which allows well insulated quantum systems to preserve memory of the initial state forever. Now a team of scientists around Dr. Christian Groß and Professor Immanuel Bloch (Director at MPQ and Chair of Quantum Optics at LMU Munich), in cooperation with David Huse (Princeton University), has obtained evidence of such a behaviour in a two-dimensional quantum system of cold rubidium atoms trapped in an optical lattice.

The scientists observed that – beyond a certain degree of disorder imprinted on the particle ensemble in the beginning – the system would relax into a steady state still containing detailed microscopic information about its past. “We were able to observe the transition from a thermalized state into a many-body localized phase”, Christian Groß points out. “It is the first observation of that kind in a regime that is not accessible with state-of-the-art simulations on classical computers.” The experiment is not only of fundamental interest; the results might also lead to new ways for storing quantum information.

Continue reading “Scientists obtain evidence of many-body localization in a closed quantum system” »

Jul 8, 2016

Could the Big Bang have been more of a Big Bounce?

Posted by in categories: cosmology, particle physics, quantum physics

When the bang became a bounce.


How the universe began is one of the most brain-breaking questions you could possibly ask, and the Big Bang is probably the answer most people accept. But what if the infinitely dense point from which the entire universe burst forth wasn’t the beginning of everything, but merely the middle of an ongoing cycle? That’s the theory of the Big Bounce, which suggests that the universe regularly cycles through periods of expansion and contraction, meaning the Big Bang may have been preceded by an earlier universe collapsing in on itself. A new study details how this might be possible.

The idea of the Big Bounce has been bouncing around since 1922, but explaining just how the universe transitions between expanding and contracting has always been an issue. What’s to stop a universe just contracting into a point and collapsing completely? According to researchers from Imperial College London and the Perimeter Institute for Theoretical Physics in Canada, it may be the same quantum mechanics that prevent atoms from deteriorating into nothing.

Continue reading “Could the Big Bang have been more of a Big Bounce?” »

Jul 8, 2016

Stability of new-generation semiconductor lasers

Posted by in categories: biotech/medical, internet

New Semiconductor lasers — excellent news for Internet and medical technology.


Global stability analysis shows that new-generation semiconductor lasers may be dynamically more stable than conventional lasers despite having more degrees of freedom.

Continue reading “Stability of new-generation semiconductor lasers” »

Jul 8, 2016

Versatile microwave-driven trapped ion spin system for quantum information processing

Posted by in categories: computing, information science, quantum physics

More steps forward for QC through the discovery of a versatile effective spin system suitable for quantum simulations and universal quantum computation.


Using trapped atomic ions, we demonstrate a tailored and versatile effective spin system suitable for quantum simulations and universal quantum computation. By simply applying microwave pulses, selected spins can be decoupled from the remaining system and, thus, can serve as a quantum memory, while simultaneously, other coupled spins perform conditional quantum dynamics. Also, microwave pulses can change the sign of spin-spin couplings, as well as their effective strength, even during the course of a quantum algorithm. Taking advantage of the simultaneous long-range coupling between three spins, a coherent quantum Fourier transform—an essential building block for many quantum algorithms—is efficiently realized. This approach, which is based on microwave-driven trapped ions and is complementary to laser-based methods, opens a new route to overcoming technical and physical challenges in the quest for a quantum simulator and a quantum computer.

Read more