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Category: quantum physics

Any day now, quantum computers will solve a problem too hard for a classical computer to take on. Or at least, that’s what we’ve been hoping. Scientists and companies are racing toward this computing milestone, dubbed quantum supremacy and seemingly just beyond our reach, and if you’ve been following the quantum computing story, you might wonder why we’re not there yet, given all the hype.

The short answer is that controlling the quantum properties of particles is hard. And even if we could use them to compute, “quantum supremacy” is a misleading term. The first quantum supremacy demonstration will almost certainly be a contrived problem that won’t have a practical or consumer use. Nonetheless, it’s a crucial milestone when it comes to benchmarking these devices and establishing what they can actually do. So what’s holding us back from the future?

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Using quantum entanglement, Micius allows perfectly secure, unhackable communication.

> https://cosmosmagazine.com/technology/the-quantum-internet-is-already-being-built <

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Atomtronics manipulates atoms much in the way that electronics manipulates electrons. It carries the promise of highly compact quantum devices which can measure incredibly small forces or tiny rotations. Such devices might one day be used to monitor Earth’s status by sensing water levels in the desert or in the search for minerals and oil. They will also be used in navigation, when GPS fails on planes or ships due to malicious attacks or simply because it is not available, e.g. in the deep seas. They might also one day act as portable quantum simulators solving complex computational tasks.

Coherent atomtronics manipulates atoms in the form of matterwaves originating from Bose-Einstein condensates (a state of matter in which all the atoms lose their individual identity and become one single quantum state with all the atoms being everywhere in the condensate at the same time). The atoms in these matterwaves behave much more like waves rather than individual particles. These matterwaves can be brought to interfere and thus made to respond to the tiniest changes in their environment such as the difference in gravitational pull between light organic material and heavy iron ore. When compared to light, atoms can be 10 billion times more sensitive, e.g. to rotation or acceleration, when compared to the photons that make up light. This sensitivity depends on the measurement time and—just like Newton’s apple—atoms fall due to Earth’s gravity. This forces the most sensitive interferometers to be very tall, reaching 10 meters and in some cases even 100 meters.

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A team of researchers from the University of California at Berkeley and Lawrence Berkeley National Laboratory has found a way to make the Casimir effect attract or repulse depending on the size of the gap between two objects. In their paper published in the journal Science, the group describes their technique and possible applications.

The Casimir effect, first proposed by Hendrik Casimir back in 1948, is the phenomenon in which two tiny surfaces in close proximity experience a force that pulls them closer together. Quantum fluctuations inside and outside of the gap push against the plates, but because those pushing from the outside are stronger, they create an between the two plates. The Casimir effect is more than a curiosity, because it can create problems in nanotechnology applications.

Just two years after Casimir first proposed the effect, others in the field began making predictions about ways to counter it—making it repulsive rather than attractive, for example, in the case of fluids and plates made of lower refractive metals. Then, in 2010, a team at MIT suggested that it should be possible to counter both attractive and repulsive effects to create a state of equilibrium between the two plates. In this new effort, the researchers report that they have done just that.

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In “Avengers: Endgame,” Tony Stark warned Scott Lang that sending him into the quantum realm and bringing him back would be a “billion-to-one cosmic fluke.”

In reality, shrinking a to a nanometer-sized point to spy on quantum-scale -matter interactions and retrieving the information is not any easier. Now, engineers at the University of California, Riverside, have developed a new technology to tunnel light into the quantum realm at an unprecedented efficiency.

In a Nature Photonics paper, a team led by Ruoxue Yan, an assistant professor of chemical and , and Ming Liu, an assistant professor of electrical and computer engineering, describe the world’s first portable, inexpensive, optical nanoscopy tool that integrates a glass optical fiber with a silver nanowire condenser. The device is a high-efficiency round-trip light tunnel that squeezes visible light to the very tip of the condenser to interact with molecules locally and send back information that can decipher and visualize the elusive nanoworld.

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Martin Tajmar has a SpaceDrive project and plans to create an instrument so sensitive and immune to interference that it would put an end to the debate once and for all. Tajmar believes that studying the EmDrive and similar propellantless propulsion systems will requir nano-newton instrument resolution.

He is making a new to torsion balance. It is a pendulum-type balance that measures the amount of torque applied to the axis of the pendulum. Tajmar’s team used a laser interferometer to measure the physical displacement of the balance scales. The new torsion scale has a nano-newton resolution and supports thrusters weighing several pounds, making it the most sensitive thrust balance in existence.

The SpaceDrive Project-Thrust Balance Development and New Measurements of the Mach-Effect and EMDrive Thrusters.

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In this video I show you an awesome laser lightsaber and then I talk about lightsabers and the possibility of using photonic molecules to build a real lightsaber. This thing is awesome! If the force is with us (and some quantum mechanics) we will some day have a true lightsaber…These are very dangerous lasers. NOT A TOY. Will cause instant blindness:

Blue Laser Pointer Lightsaber kit: https://goo.gl/9JUWdp

Lasers: https://goo.gl/adjvAi

Banggood: https://goo.gl/NyT1iK

Flash Deals: https://goo.gl/un1Ccr

App Downloads: https://goo.gl/4MPzAeWARNING:

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The double helix of dna and transferring for information and energy by torsion field in quantum beings.

Every human is a complex, multi-dimensional energy being.

THE HUMAN BIOFIELD DEFINED:

The human biofield is the energetic blueprint or matrix that creates the human form. Every human being, and every living creature on this planet, has such a blueprint. The human biofield is multidimensional, offering 3D physical form along with the vibrational aspects of the emotional and mental planes and beyond. The biofield is holographic and predetermines who we are, while at the same time reflects our state of being moment to moment. If any portion of the physical body is removed, the holographic blueprint of that tissue remains. The biofield can be read, scanned and interpreted in many different ways, just like any blueprint.

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Researchers from the University of Bristol and Nippon Telegraph and Telephone claim to have developed a fully-programmable quantum optical chip able to encode and manipulate photons in an infinite number of ways. This breakthrough may pave the way for true quantum optical computing systems.

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Batteries are great, except that they take a long time to charge. When you are dealing with a lot of batteries, you have to have a lot of time to charge them. But what if you could reduce the charging time by adding more batteries? Sounds unreal? Probably, but that is what scientists at the University of Adelaide are going to try to achieve by creating world’s first quantum battery.

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