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Archive for the ‘futurism’ category: Page 768

Dec 21, 2019

Honda walking device

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Life changing!

Dec 21, 2019

Lucid Motors doesn’t want to be a ‘Tesla Killer’

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Lucid sees Mercedes, not Tesla, as its main competitor.

Dec 21, 2019

Futuristic Upside-Down Railway in Wuppertal, Germany

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It’s hard to believe this futuristic tram opened in 1901!

Dec 20, 2019

Israeli migraine-busting device saluted as 2020 ‘game changer’

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Netanya-based startup Theranica chosen in category of ‘electro-charged therapeutics’ by New York data firm CB Insights.

Dec 20, 2019

Philippines to experience 2019’s longest night on December 22

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The Philippines will experience this year’s longest night on December 22, with peak darkness slated around midnight, state weather bureau PAGASA said.

4 h

ABS-CBN News

Dec 19, 2019

This Is Why We Will Never Know Everything About Our Universe

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Even the best science imaginable has its limits.

Dec 18, 2019

Facebook says it can locate users who opt out of tracking

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Facebook can determine where users are even if they opt out of having their whereabouts tracked, the company revealed in a letter sent to US senators.

In the missive, which was widely shared on social media Tuesday, Facebook explained ways it can still figure out where people are after they have selected not to share precise location data with the company.

The social network, which was responding to a request for information by two senators, contended that knowing a user’s whereabouts has benefits ranging from showing ads for nearby shops to fighting hackers and battling misinformation.

Dec 18, 2019

File storage made easier with NetApp Cloud Volumes, now GA

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Check out enterprise-grade cloud file storage that’s highly available and high performing from Google Cloud and NetApp Cloud Volumes.

Dec 17, 2019

The world’s oldest couple — ages 106 and 105 — celebrate their 80th wedding anniversary

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The world’s oldest living couple celebrated another major milestone when their senior living community in Austin, Texas, threw them a party for their 80th wedding anniversary.

John and Charlotte Henderson have an aggregate age of 211 years and 175 days, and a love story that has quite literally stood the test of time.

To celebrate their 80th year together, 106-year-old John picked up 105-year-old Charlotte in a 1920s roadster — much like he did on their first date — with a beautiful bouquet of flowers.

Dec 17, 2019

[quant-ph/0512214] Infinite qubit rings with maximal nearest neighbor entanglement: the Bethe ansatz solution

Posted by in category: futurism

Circa 2005


We search for translationally invariant states of qubits on a ring that maximize the nearest neighbor entanglement. This problem was initially studied by O’Connor and Wootters [Phys. Rev. A {\bf 63}, 052302 (2001)]. We first map the problem to the search for the ground state of a spin 1/2 Heisenberg XXZ

Model. Using the exact Bethe ansatz solution in the limit of an infinite ring.

We prove the correctness of the assumption of O’Connor and Wootters that the state of maximal entanglement does not have any pair of neighboring spins.

Continue reading “[quant-ph/0512214] Infinite qubit rings with maximal nearest neighbor entanglement: the Bethe ansatz solution” »

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