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Archive for the ‘quantum physics’ category: Page 449

Aug 9, 2019

What Is Quantum Computing (Quantum Computers Explained)

Posted by in categories: information science, quantum physics, robotics/AI

This video is the ninth in a multi-part series discussing computing and the second discussing non-classical computing. In this video, we’ll be discussing what quantum computing is, how it works and the impact it will have on the field of computing.

[0:28–6:14] Starting off we’ll discuss, what quantum computing is, more specifically — the basics of quantum mechanics and how quantum algorithms will run on quantum computers.

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Aug 8, 2019

Scientists Find Way to Measure Quantum Entanglement in Chemical Reactions

Posted by in category: quantum physics

A duo of researchers at Purdue University has modified a popular theorem — called Bell’s inequality — for identifying quantum entanglement and applied it to chemical reactions.

Aug 8, 2019

Bill Faloon: A Life Long Quest To Reverse Human Aging!

Posted by in categories: bioengineering, biotech/medical, cryonics, education, food, life extension, quantum physics, transhumanism

Ira Pastor, ideaXme longevity and aging Ambassador and Founder of Bioquark interviews Bill Faloon, Director and Co-Founder, Life Extension Foundation and Founder of The Church Of Perpetual Life.

Ira Pastor Comments:

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Aug 8, 2019

Quantum Teleportation Has Been Reported in a Qutrit For The First Time

Posted by in categories: computing, quantum physics

It’s time to celebrate another first in the field of quantum physics: scientists have been able to ‘teleport’ a qutrit, or a piece of quantum information based on three states, opening up a whole host of new possibilities for quantum computing and communication.

Up until now, quantum teleportation has only been managed with qubits, albeit over impressively long distances. A new proof-of-concept study suggests future quantum networks will be able to carry much more data and with less interference than we thought.

If you’re new to the idea of qutrits, first let’s take a step back. Simply put, the small data units we know as bits in classical computing can be in one of two states: a 0 or a 1. But in quantum computing, we have the qubit, which can be both a 0 and 1 at the same time (known as superposition).

Aug 8, 2019

Quantum teleportation, FLASH radiotherapy and the end of electricity from coal

Posted by in categories: innovation, quantum physics

Physics World represents a key part of IOP Publishing’s mission to communicate world-class research and innovation to the widest possible audience. The website forms part of the Physics World portfolio, a collection of online, digital and print information services for the global scientific community.

Aug 8, 2019

A key piece to understanding how quantum gravity affects low-energy physics

Posted by in categories: energy, quantum physics

Researchers have, for the first time, identified the sufficient and necessary conditions that the low-energy limit of quantum gravity theories must satisfy to preserve the main features of the Unruh effect.

Aug 5, 2019

Synthesizing single-crystalline hexagonal graphene quantum dots

Posted by in categories: biological, engineering, nanotechnology, quantum physics

A KAIST team has designed a novel strategy for synthesizing single-crystalline graphene quantum dots, which emit stable blue light. The research team confirmed that a display made of their synthesized graphene quantum dots successfully emitted blue light with stable electric pressure, reportedly resolving the long-standing challenges of blue light emission in manufactured displays. The study, led by Professor O Ok Park in the Department of Chemical and Biological Engineering, was featured online in Nano Letters on July 5.

Graphene has gained increased attention as a next-generation material for its heat and electrical conductivity as well as its transparency. However, single and multi-layered graphene have characteristics of a conductor so that it is difficult to apply into semiconductor. Only when downsized to the nanoscale, semiconductor’s distinct feature of bandgap will be exhibited to emit the light in the graphene. This illuminating featuring of dot is referred to as a graphene quantum dot.

Conventionally, single-crystalline graphene has been fabricated by chemical vapor deposition (CVD) on copper or nickel thin films, or by peeling graphite physically and chemically. However, graphene made via is mainly used for large-surface transparent electrodes. Meanwhile, graphene made by chemical and physical peeling carries uneven size defects.

Aug 4, 2019

7 Chinese tech giants that are poised to be global power players

Posted by in categories: internet, quantum physics, robotics/AI

China has declared its ambition to dominate the technology sector from 5G and artificial intelligence to robotics and quantum computing. Joining the infrastructure firms on this year’s list are technology firms such as Alibaba, http://JD.com/, Tencent, Xiaomi, and BOE. Huawei was not included as it is a private entity.


China’s ambition to dominate the technology sector from 5G and artificial intelligence to robotics and quantum computing is bearing fruit.

Aug 2, 2019

Turning water into ice in the quantum realm

Posted by in categories: particle physics, quantum physics

When you pop a tray of water into the freezer, you get ice cubes. Now, researchers from the University of Colorado Boulder and the University of Toronto have achieved a similar transition using clouds of ultracold atoms.

In a study that will appear August 2 in the journal Science Advances, the team discovered that it could nudge these to undergo transitions between “dynamical phases”—essentially, jumping between two states in which the behave in completely different ways.

“This happens abruptly, and it resembles the we see in systems like water becoming ice,” said study co-author Ana Maria Rey. “But unlike that tray of ice cubes in the freezer, these phases don’t exist in equilibrium. Instead, atoms are constantly shifting and evolving over time.”

Aug 2, 2019

Two-dimensional (2-D) nuclear magnetic resonance (NMR) spectroscopy with a microfluidic diamond quantum sensor

Posted by in categories: biological, quantum physics, space

Quantum sensors based on nitrogen-vacancy (NV) centers in diamond are a promising detection mode for nuclear magnetic resonance spectroscopy due to their micron-scale detection volume and noninductive-based sample detection requirements. A challenge that exists is to sufficiently realize high spectral resolution coupled with concentration sensitivity for multidimensional NMR analysis of picolitre sample volumes. In a new report now on Science Advances, Janis Smits and an interdisciplinary research team in the departments of High Technology Materials, Physics and Astronomy in the U.S. and Latvia addressed the challenge by spatially separating the polarization and detection phases of the experiment in a microfluidic platform.

They realized a of 0.65±0.05 Hz, an order-of-magnitude improvement compared with previous diamond NMR studies. Using the platform, they performed 2-D correlation spectroscopy of liquid analytes with an effective detection volume of ~40 picoliters. The research team used diamond as in-line microfluidic NMR detectors in a major step forward for applications in mass-limited chemical analysis and single-cell biology.

Nuclear magnetic resonance (NMR) spectroscopy is a powerful and well-established technique for compositional, structural and functional analysis in a variety of scientific disciplines. In conventional NMR spectrometry the signal-to-noise ratio (SNR) is strongly dependent on the external field strength (B0). As the spectral resolution increased, the B0 increased as well, motivating the development of increasingly large and expensive superconducting magnets for improved resolution and SNR, resulting in a two-fold increase in field strength within the past 25 years.