Lifeboat Foundation

Another approach to QC; the title of the article is misleading because you still are using quantum properties in the approach.

Researchers at Aalto University have demonstrated the suitability of microwave signals in the coding of information for quantum computing. Previous development of the field has been focusing on optical systems. Researchers used a microwave resonator based on extremely sensitive measurement devices known as superconductive quantum interference devices (SQUIDs). In their studies, the resonator was cooled down and kept near absolute zero, where any thermal motion freezes. This state corresponds to perfect darkness where no photon — a real particle of electromagnetic radiation such as visible light or microwaves — is present.

However, in this state (called quantum vacuum) there exist fluctuations that bring photons in and out of existence for a very short time. The researchers have now managed to convert these fluctuations into real photons of microwave radiation with different frequencies, showing that, in a sense, darkness is more than just absence of light.

Continue reading “Colors from darkness: Researchers develop alternative approach to quantum computing” »

An international team of researchers have for the first time, discovered that in a very high magnetic field an electron with no mass can acquire a mass. Understanding why elementary particles e.g. electrons, photons, neutrinos have a mass is a fundamental question in Physics and an area of intense debate. This discovery by Prof Stefano Sanvito, Trinity College Dublin and collaborators in Shanghai was published in the prestigious journal Nature Communications this month.

Quantum entanglement is one of the more bizarre theories to come out of the study of quantum mechanics — so strange, in fact, that Albert Einstein famously referred to it as “spooky action at a distance.”

Essentially, entanglement involves two particles, each occupying multiple states at once — a condition referred to as superposition. For example, both particles may simultaneously spin clockwise and counterclockwise. But neither has a definite state until one is measured, causing the other particle to instantly assume a corresponding state.

The resulting correlations between the particles are preserved, even if they reside on opposite ends of the universe.

Continue reading “Physicist finds entanglement instantly gives rise to a wormhole” »

“Liquid Metals to “Soft-Wire” Elastic Electronics”

A few years ago, some friends shared with me an amazing experiment of theirs involving liquid/ fluid base circuitry. Definitely is amazing; and is going to be amazing in where we are taking this type of technology along with synthetic biology.

The shape-shifting metals behind the T-1000 android assassin in the sci-fi movie Terminator 2 may not remain science fiction for long with the development of self-propelling liquid metals that could lead to the replacement of solid state circuits by elastic electronics.

Continue reading “Liquid Metals to ‘Soft-Wire’ Elastic Electronics” »

Perfecting the macro-molecule.

(Phys.org)—A pair of physicists with the Swiss Federal Institute of Technology in Switzerland has found a way to create very large diatomic molecules, and in so doing, have proved some of the theories about such molecules to be correct. In their paper published in Physical Review Letters, Johannes Deiglmayr and Heiner Saßmannshausen describe their experiments and results and why they believe such molecules may have a future in quantum computing.

Physicists have been interested in the properties of macromolecules for many years because they believe studying them will illuminate the fundamental properties of molecules in general. Prior research has shown that large, two-atom molecules should be possible if they were put into a Rydberg state—in which the outer electron exists in a high quantum state, allowing it to orbit farther than normal from the nucleus—and thus allowing for the creation of molecules thousands of times larger than conventional diatomic molecules such as H₂.

Continue reading “Research pair create two-atom molecules that are more than a thousand times bigger than typical diatomic molecules” »

It echoes the nanite and nanobot technology seen in science fiction TV series like Star Trek and Red Dwarf, where swarms of microscopic robots can be used to repair damaged tissue.

Researchers at Bar Ilan University in Ramat Gan, Israel, and the Interdisciplinary Centre in Herzliya, built their nanobots using a form to DNA origami to create hollow shell-like structures.

Drugs could then be placed inside these before they were chemically locked shut with particles of iron oxide.

Continue reading “Mind-controlled nanobots could be used to treat depression or epilepsy” »

Rice physicists are closing in on a method that will create a new condensed matter state in which all electrons in a material act as one by manipulating them with light and a magnetic field. This research advance technologies such as quantum computers.

For particle physicists, studying the interactions between photons and electrons has long been an area of interest. After all, observing such phenomena could eventually lead us to the creation of a viable quantum computer.

Physicist Junichiro Kono and his colleagues at Rice University are making headway on a method to create a new condensed matter state, where electrons in a material “couple” after they are manipulated with light and a magnetic field.

Continue reading “New Condensed Matter State Paves the Way for Scalable Quantum Computers” »

(Phys.org)—A small team of researchers at Harvard University who are part of the Breakthrough Starshot team has been testing the likely damage to an interstellar spacecraft traveling at approximately one-fifth the speed of light as it makes its way to the Alpha Centauri star system. As they note in a paper describing their testing and results, which was uploaded to the arXiv preprint server, such damage could be catastrophic, but they believe they have a solution.

Earlier this year, Russian billionaire Yuri Milner announced to the world that he wants to send a probe to the Alpha Centauri star system—he put up $100 million of his own money to get the ball rolling on what is expected to be a multi-billion-dollar effort. At the time of the announcement, Milner told the press that his team of advisors had identified 20 main challenges that would have to be overcome in order for such a mission to be a success. In this new effort, the researchers have addressed one of those challenges—assessing the likely damage to the craft due to space dust and gases, and offering solutions to the problem.

The preliminary working design of a space probe able to travel at ∼0.2c is little more than a circuit board that has come to be known as a wafersat—it would be attached to a light sail that would be the target of a laser sent from Earth to push it during the initial part of the journey. The wavsat would be made mostly of graphite and quartz. Thus, the researchers focused the bulk of their testing on these two materials. They discovered that particles of space dust hit by the craft would mostly come in the form of collections of heavy atoms rather than particles—those collisions would cause two problems. The first would be the creation of pits on the surface of the craft, which would result in loss of material (up to 30 percent of the entire craft might be lost).

Continue reading “First test of Breakthrough Starshot interstellar probe highlights likely damage due to gas and dust” »

Although this is true (speed of communication via entanglement is not at the speed of light); like other early stage technologies this will also evolve and improve in time.

China recently launched a satellite to test quantum entanglement in space. It’s an interesting experiment that could lead to “hack proof” satellite communication. It’s also led to a flurry of articles claiming that quantum entanglement allows particles to communicate faster than light. Several science bloggers have noted why this is wrong, but it’s worth emphasizing again. Quantum entanglement does not allow faster than light communication.

This particular misconception is grounded in the way quantum theory is typically popularized. Quantum objects can be both particles and waves, They have a wavefunction that describes the probability of certain outcomes, and when you measure the object it “collapses” into a particular particle state. Unfortunately this Copenhagen interpretation of quantum theory glosses over much of the subtlety of quantum behavior, so when it’s applied to entanglement it seems a bit contradictory.

Continue reading “Quantum Entanglement: Slower Than Light” »