Lifeboat Foundation: Safeguarding Humanity
Toggle light / dark theme

Blog

Category: quantum physics – Page 257

The quantum ground state of an acoustic wave of a certain frequency can be reached by completely cooling the system. In this way, the number of quantum particles, the so-called acoustic phonons, which cause disturbance to quantum measurements, can be reduced to almost zero and the gap between classical and quantum mechanics bridged.

Over the past decade, major technological advances have been made, making it possible to put a wide variety of systems into this state. Mechanical vibrations oscillating between two mirrors in a resonator can be cooled to very low temperatures as far as the quantum ground state. This has not yet been possible for optical fibers in which high-frequency sound waves can propagate. Now researchers from the Stiller Research Group have taken a step closer to this goal.

Read more | >

According to a recent study from the University of Helsinki, published in the journal Physical Review Letters, a vortex of a superfluid that has been quantized four times has three ways of dividing, depending on the temperature.

The fluid transforms into a near the absolute zero point of (approximately −273°C). Internal resisting forces, such as friction, disappear. At this point, the behavior of the fluid can no longer be described using ; instead, quantum physics must be applied.

When a superfluid is spun, the resulting rotation should never slow down because superfluids have no viscosity or friction. This has been experimented with at the using helium at very slow rotation, and it was observed that the superfluid, however, eventually halted.

Read more | >

A collaborative project has made a breakthrough in enhancing the speed and resolution of widefield quantum sensing, leading to new opportunities in scientific research and practical applications.

By collaborating with scientists from Mainland China and Germany, the team has successfully developed a technology using a neuromorphic vision sensor, which is designed to mimic the human vision system. This sensor is capable of encoding changes in fluorescence intensity into spikes during optically detected (ODMR) measurements.

The key advantage of this approach is that it results in highly compressed data volumes and reduced latency, making the system more efficient than traditional methods. This breakthrough in quantum sensing holds potential for various applications in fields such as monitoring dynamic processes in biological systems.

Read more | >

Quantum computing engineers at UNSW Sydney have shown they can encode quantum information—the special data in a quantum computer—in four unique ways within a single atom, inside a silicon chip.

The feat could alleviate some of the challenges in operating tens of millions of quantum computing units in just a few square millimeters of a silicon quantum computer chip.

In a paper published in Nature Communications, the engineers describe how they used the 16 quantum ‘states’ of an antimony atom to encode quantum information.

Read more | >

Last year, a Quantinuum-led team of scientists announced that they were able to realize and control a state of matter known as non-Abelian topological order within a quantum processor. The team published their results in the pre-print server ArXiv, outlining how they accomplished what many experts considered a far-off advance — if possible at all – and what the scientists hoped could be an advance toward revolutionizing the way we approach quantum computing.

That advance has now been officially peer reviewed in Nature, marking another important step in the scientific process – and maybe even a significant step in the quest for fault-tolerant quantum computers, a quantum device that could handle operations with unprecedented accuracy and efficiency.

“Our key finding is that non-Abelian topological orders can experimentally be prepared with high fidelities on par with Abelian states like the surface code,” the team writes. “Non-Abelian states are among the most intricately entangled quantum states theoretically known to exist, and carry promise for new types of quantum information processing. Their realization evidences the rapid development of quantum devices and opens several new questions.”

Read more | >

We present a new route to ergodicity breaking via Hilbert space fragmentation that displays an unprecedented level of robustness. Our construction relies on a single emergent (prethermal) conservation law. In the limit when the conservation law is exact, we prove the emergence of Hilbert space fragmentation with an exponential number of frozen configurations. These configurations are low-entanglement states in the middle of the energy spectrum and therefore constitute examples of quantum many-body scars. We further prove that every frozen configuration is absolutely stable to arbitrary perturbations, to all finite orders in perturbation theory.

Read more | >

This video explores 20 emerging technologies and their future. Watch this next video about the 10 stages of AI: • The 10 Stages of Artificial Intelligence.
🎁 5 Free ChatGPT Prompts To Become a Superhuman: https://bit.ly/3Oka9FM
🤖 AI for Business Leaders (Udacity Program): https://bit.ly/3Qjxkmu.
☕ My Patreon: / futurebusinesstech.
➡️ Official Discord Server: / discord.

💡 Future Business Tech explores the future of technology and the world.

Examples of topics I cover include:
• Artificial Intelligence & Robotics.
• Virtual and Augmented Reality.
• Brain-Computer Interfaces.
• Transhumanism.
• Genetic Engineering.

SUBSCRIBE: https://bit.ly/3geLDGO

Disclaimer:
Some links in this description are affiliate links.
As an Amazon Associate, I earn from qualifying purchases.

This video explores 20 emerging technologies and their future. Other related terms: ai, artificial intelligence, future business tech, future technology, future tech, future business technologies, future technologies, artificial general intelligence, artificial superintelligence, superintelligence, future city, radical life extension, crisp, quantum computer, neuralink, humanoid robot, generative ai, starlink, nanotechnology, smart cities, mixed reality, autonomous vehicles, blockchain, lab grown meat, smart home, fusion power, space tourism, artificial wombs, etc.

Continue reading “20 Emerging Technologies That Will Change The World” | >

Sabine Hossenfelder and Bernardo Kastrup have a theolocution on superdeterminism and free variables.
Sponsors: https://brilliant.org/TOE for 20% off. For Algo’s podcast / @algopodcast and website https://www.algo.com/.

Patreon: / curtjaimungal.
Crypto: https://tinyurl.com/cryptoTOE
PayPal: https://tinyurl.com/paypalTOE
Twitter: / toewithcurt.
Discord Invite: / discord.
iTunes: https://podcasts.apple.com/ca/podcast…
Pandora: https://pdora.co/33b9lfP
Spotify: https://open.spotify.com/show/4gL14b9…
Subreddit r/TheoriesOfEverything: / theoriesofeverything.
Merch: https://tinyurl.com/TOEmerch.

LINKS MENTIONED:
–Sabine Hossefelder’s YouTube: / sabinehossenfelder.
–Testing Superdeterminism: https://arxiv.org/abs/1401.0286 / https://arxiv.org/abs/1105.4326
–Other Superdeterminism articles: https://arxiv.org/abs/2109.02676 / https://arxiv.org/abs/2010.01327
–Decoherence article: https://arxiv.org/abs/1911.06282
–Bernardo Kastrup’s website: https://www.bernardokastrup.com/
–No Go Theorem on Wigner: https://www.nature.com/articles/s4156…
–Making Sense of the Mental Universe\r by Kastrup: http://ispcjournal.org/journals/2017-…

LINKS NOT MENTIONED BUT PERTINENT:
(Bernardo Kastrup recommends the below)
Papers indicating that physical realism is untrue and refuting classes of hidden variables theories:
–https://arxiv.org/abs/1712.01826
–https://www.nature.com/articles/natur…
–https://iopscience.iop.org/article/10…
–https://arxiv.org/abs/1902.05080
–https://www.nature.com/articles/s4158…
–https://link.springer.com/article/10…
–https://books.google.nl/books/about/M…
–http://ispcjournal.org/journals/2017-…
–https://journals.aps.org/prl/abstract…
–https://arxiv.org/abs/quant-ph/9806043
–https://arxiv.org/abs/quant-ph/9810080
–https://www.nature.com/articles/natur…
–https://www.nature.com/articles/nphys…
–https://link.springer.com/article/10…
–https://arxiv.org/abs/quant-ph/9609002

TIMESTAMPS:
00:00:00 Introduction.
00:04:16 Overview of Superdeterminism.
00:08:31 Bernardo’s agreements / disagreements.
00:13:15 It’s more promising to violate statistical independence (SI)
00:15:59 What are the hidden variables in Superdeterminism?
00:18:20 What is statistical independence? Is it a mere assumption?
00:22:41 People claim Superdeterminism isn’t falsifiable, but is it?
00:31:17 Back and forth criticism and justification of proposed experiments.
00:38:35 Does experiment change the outcome of what’s measured?
00:41:37 Contrarian views — should they be put forward tentatively?
00:44:57 Decoherence and the observer.
00:49:22 The observer (and consciousness) is irrelevant in quantum mechanics.
00:52:37 Why oppose violating statistical independence (SI)?
00:54:57 Metaphysics? Or simply trying to solve the measurement problem?
00:55:57 We don’t have a good reason to depart with SI
00:59:10 Holding Sabine to higher standards than John Bell?
01:01:31 [gastronic] What is the definition of measurement / What does it mean to \.

Read more | >