Naoto Kamouchi

199 Flips | 9 Magazines | 3 Likes | 1 Following | 2 Followers | @nfkamouchi | Keep up with Naoto Kamouchi on Flipboard, a place to see the stories, photos, and updates that matter to you. Flipboard creates a personalized magazine full of everything, from world news to life’s great moments. Download Flipboard for free and search for “Naoto Kamouchi”

We May Soon Know How a Crucial Einstein Principle Works in The Quantum Realm

Strap yourselves in!<p>The puzzle of how Einstein's equivalence principle plays out in the quantum realm has vexed physicists for decades. Now two …

Quantum Mechanics

Extending general covariance: Moyal-type noncommutative manifolds

Author(s): Martin Bojowald, Suddhasattwa Brahma, Umut Buyukcam, and Michele RoncoIn the Hamiltonian formulation of general relativity, Einstein’s …

‘Through Two Doors at Once’ Review: Interfering With Reality

Richard Feynman said that the double-slit experiment seemed to have been ‘designed to contain all of the mystery of quantum mechanics.’<p>By<p>Andrew Crumey<p>Are you facing a difficult decision? Quantum physics may have the answer, says science journalist Anil Ananthaswamy. Type your dilemma into the …

Quantum Physics

Loopholes and the 'Anti-Realism' of the Quantum World

The theoretical physicist John Wheeler once used the phrase “great smoky dragon” to describe a particle of light going from a source to a photon …

Quantum Mechanics

Has Physics Gone Astray?

Sabine Hossenfelder interviewed by Tam Hunt.First-time author Sabine Hossenfelder, has produced a highly readable and entertaining book about the …

Quantum Mechanics

Physics Needs Philosophy / Philosophy Needs Physics

<i>Contrary to claims about the irrelevance of philosophy for science, philosophy has always had, and still has, far more influence on physics than</i> …

Philosophy

Reversing cause and effect is no trouble for quantum computers: Modelling data in reverse offers hints for how the arrow of time emerges

Modelling data in reverse offers hints for how the arrow of time emerges<p>Scientists show that a quantum computer is less in thrall to the arrow of …

Google Cirq and the New World of Quantum Programming

The race for quantum computing dominance is on with four protagonists: IBM, Microsoft, Alibaba and Google. Whereas most of the attention in the …

Extending general covariance: Moyal-type noncommutative manifolds

Author(s): Martin Bojowald, Suddhasattwa Brahma, Umut Buyukcam, and Michele RoncoIn the Hamiltonian formulation of general relativity, Einstein's …

Time crystals may hold secret to coherence in quantum computing

"There has been a lot of theoretical papers, but very few practical realizations. So ours is one of the few, and the first to demonstrate …

Quantum Physics

Quantum Experiment Shows How “Time” Doesn’t Exist As We Think It Does (Mind-Altering)

“We choose to examine a phenomenon which is impossible, absolutely impossible, to explain in any classical way, and which has in it the heart of …

Indistinguishability as nonlocality constraint

Abstract<p>A physical explanation for quantum bounds to nonlocality (Tsirelson’s bound) is a fundamental problem in quantum theory, for it is known that …

Event - Testing General Relativity Using a Pulsar in a Triple System

APS April Meeting 2018<p>Saturday–Tuesday, April 14–17, 2018; Columbus, Ohio<p>8:30 AM–10:18 AM, Monday, April 16, 2018<p>Room: Union Ballroom BC<p>Sponsoring …

The illusion of time

Andrew Jaffe probes Carlo Rovelli’s study arguing that physics deconstructs our sense of time.<p><b>The Order of Time</b> <i>Carlo Rovelli</i> Allen Lane …

20 Entangled Qubits Bring the Quantum Computer Closer

Researchers demonstrate the entanglement of 20 qubits that work as a true, albeit small, quantum computer Illustration: Harald Ritsch/IQOQI …

Quantum Computing

Physicists Just Broke a Quantum Record, Taking Entanglement to a Spooky New Level

Quantum computers, here we come.<p>If we want quantum computers, we're going to need a complex system of quantum entangled particles - particles that …

Quantum Physics

'There is no such thing as past or future': physicist Carlo Rovelli on changing how we think about time

Seven Brief Lessons on Physics sold over a million copies around the world. Now Rovelli is back to explore the mysteries of time. He tells Charlotte Higgins about student revolution and how his quantum leap began with an acid trip<p>• Extract from Carlo Rovelli’s new book: on the elastic concept of …

Physics

Why a New Idea to Search for Extra Dimensions in the Pulse of Spacetime Is Turning Heads

Spoiler alert (but really, you should’ve watched it by now): In the climax of Christopher Nolan’s <i>Interstellar</i> (2014), Matthew McConaughey dives into …

Physics

The Case for Putting Aside Dark Energy to Reevaluate General Relativity

A renewed suggestion that dark energy may not be real – dispensing with 70% of the stuff in the universe – has reignited a longstanding debate.<p>Dark …

Dark Matter

Quantum Algorithm Implementations for Beginners. (arXiv:1804.03719v1 [cs.ET])

As quantum computers have become available to the general public, the need has arisen to train a cohort of quantum programmers, many of whom have …

Quantum Computing

A ‘Quantum Radar’ System Will Watch for Stealth Aircraft and Missiles in the Arctic

Canada is investing $2.7 million to develop quantum radar technology.<p>The Canadian government is investing $2.7 million to develop a powerful new quantum radar technology that would vastly improve detection of objects in the Arctic, including stealth aircraft and missiles, officials said …

Researchers develop prototype of advanced quantum memory

Employees of Kazan Federal University and Kazan Quantum Center of Kazan National Research Technical University demonstrated an original layout of a …

Quantum simulator offers faster route for prime factorization

Factoring very large numbers into their prime "building blocks" is extremely difficult for classical computers, and this difficulty underlies the …

A Classic Formula For Pi Was Discovered Hidden in Hydrogen Atoms

Two years ago ... this was an amazing find.<p>Back in 2015, scientists found something amazing for the first time - a classic formula for pi hidden in …

Physicists Found a Trick to Solve an ‘Impossible’ Puzzle of Gravity

The experiment would confirm that gravity is a quantum force.<p>In 1935, when both quantum mechanics and Albert Einstein’s general theory of relativity were young, a little-known Soviet physicist named Matvei Bronstein, just 28 himself, made the first detailed study of the problem of reconciling the …

Quantum Mechanics

Scientists Discover Fundamental Property of Light

And here's how we can harness it.<p><i>This article was written by Clive Emary from the University of Hull, and was originally published by The</i> …

A quantum algorithm could help us bring AI to life

A Modern Tech Combo<p>Artificial intelligence has a sort of buzzword recently, and one that could be put to use in a varied number of fields. In the …

Scientists discover entirely new material that cannot be explained by classical physics

An international team of physicists has “stumbled upon” an entirely new material, which they have called "Weyl-Kondo semimetal”.<p>The “semimetal” …

Europe unveils roadmap for the next decade of quantum computing

It’s the product of 1 billion euros of investment.<p>Back in 2016, the EU invested 1 billion euros (almost $1.2 billion at today's exchange rates) in quantum computing. Now, a year and a half later, it's time for an update on what's happening thanks to a 150-page roadmap on European quantum …

Quantum Computing

Europe Unveils Its Vision for a Quantum Future - MIT Technology Review

The race to conquer the quantum world is among the most fiercely competitive in technology. China and the U.S. have both invested billions in …

Quantum Computing